/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.15.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 19:04:45,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 19:04:45,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 19:04:45,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 19:04:45,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 19:04:45,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 19:04:45,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 19:04:45,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 19:04:45,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 19:04:45,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 19:04:45,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 19:04:45,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 19:04:45,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 19:04:45,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 19:04:45,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 19:04:45,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 19:04:45,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 19:04:45,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 19:04:45,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 19:04:45,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 19:04:45,625 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 19:04:45,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 19:04:45,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 19:04:45,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 19:04:45,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 19:04:45,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 19:04:45,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 19:04:45,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 19:04:45,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 19:04:45,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 19:04:45,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 19:04:45,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 19:04:45,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 19:04:45,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 19:04:45,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 19:04:45,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 19:04:45,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 19:04:45,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 19:04:45,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 19:04:45,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 19:04:45,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 19:04:45,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 19:04:45,646 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 19:04:45,657 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 19:04:45,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 19:04:45,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 19:04:45,659 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 19:04:45,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 19:04:45,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 19:04:45,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 19:04:45,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 19:04:45,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 19:04:45,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 19:04:45,661 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 19:04:45,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 19:04:45,661 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 19:04:45,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 19:04:45,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 19:04:45,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 19:04:45,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 19:04:45,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 19:04:45,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 19:04:45,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 19:04:45,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 19:04:45,664 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 19:04:45,664 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 19:04:45,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 19:04:45,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 19:04:45,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 19:04:45,943 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 19:04:45,947 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 19:04:45,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c [2022-03-17 19:04:46,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdfdaa8e2/3f699b7290c3487e94b1097d2ff72cad/FLAG829fbf805 [2022-03-17 19:04:46,472 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 19:04:46,473 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c [2022-03-17 19:04:46,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdfdaa8e2/3f699b7290c3487e94b1097d2ff72cad/FLAG829fbf805 [2022-03-17 19:04:46,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdfdaa8e2/3f699b7290c3487e94b1097d2ff72cad [2022-03-17 19:04:46,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 19:04:46,806 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 19:04:46,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 19:04:46,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 19:04:46,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 19:04:46,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:04:46" (1/1) ... [2022-03-17 19:04:46,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5407a6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:04:46, skipping insertion in model container [2022-03-17 19:04:46,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:04:46" (1/1) ... [2022-03-17 19:04:46,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 19:04:46,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 19:04:47,202 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.15.i.cil-2.c[75833,75846] [2022-03-17 19:04:47,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 19:04:47,221 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 19:04:47,333 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.15.i.cil-2.c[75833,75846] [2022-03-17 19:04:47,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 19:04:47,350 INFO L208 MainTranslator]: Completed translation [2022-03-17 19:04:47,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:04:47 WrapperNode [2022-03-17 19:04:47,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 19:04:47,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 19:04:47,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 19:04:47,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 19:04:47,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:04:47" (1/1) ... [2022-03-17 19:04:47,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:04:47" (1/1) ... [2022-03-17 19:04:47,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:04:47" (1/1) ... [2022-03-17 19:04:47,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:04:47" (1/1) ... [2022-03-17 19:04:47,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:04:47" (1/1) ... [2022-03-17 19:04:47,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:04:47" (1/1) ... [2022-03-17 19:04:47,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:04:47" (1/1) ... [2022-03-17 19:04:47,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 19:04:47,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 19:04:47,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 19:04:47,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 19:04:47,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:04:47" (1/1) ... [2022-03-17 19:04:47,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 19:04:47,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:04:47,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-17 19:04:47,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-17 19:04:47,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 19:04:47,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 19:04:47,574 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 19:04:47,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 19:04:47,574 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 19:04:47,575 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 19:04:47,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 19:04:47,575 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 19:04:47,575 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 19:04:47,576 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 19:04:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 19:04:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 19:04:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 19:04:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 19:04:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 19:04:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 19:04:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 19:04:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 19:04:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 19:04:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 19:04:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 19:04:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 19:04:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 19:04:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 19:04:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 19:04:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 19:04:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 19:04:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 19:04:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 19:04:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 19:04:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 19:04:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 19:04:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 19:04:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 19:04:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 19:04:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 19:04:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 19:04:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 19:04:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 19:04:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 19:04:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 19:04:47,769 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 19:04:47,770 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 19:04:48,458 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 19:04:48,888 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 19:04:48,888 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 19:04:48,898 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 19:04:48,905 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 19:04:48,905 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 19:04:48,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 07:04:48 BoogieIcfgContainer [2022-03-17 19:04:48,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 19:04:48,908 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 19:04:48,908 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 19:04:48,909 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 19:04:48,912 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 07:04:48" (1/1) ... [2022-03-17 19:04:48,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 07:04:48 BasicIcfg [2022-03-17 19:04:48,949 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 19:04:48,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 19:04:48,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 19:04:48,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 19:04:48,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:04:46" (1/4) ... [2022-03-17 19:04:48,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa3028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:04:48, skipping insertion in model container [2022-03-17 19:04:48,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:04:47" (2/4) ... [2022-03-17 19:04:48,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa3028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:04:48, skipping insertion in model container [2022-03-17 19:04:48,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 07:04:48" (3/4) ... [2022-03-17 19:04:48,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa3028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:04:48, skipping insertion in model container [2022-03-17 19:04:48,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 07:04:48" (4/4) ... [2022-03-17 19:04:48,956 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.15.i.cil-2.cJordan [2022-03-17 19:04:48,960 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 19:04:48,961 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 19:04:48,998 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 19:04:49,003 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 [2022-03-17 19:04:49,003 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 19:04:49,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 154 states have (on average 1.7142857142857142) internal successors, (264), 155 states have internal predecessors, (264), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 19:04:49,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-17 19:04:49,028 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:49,028 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:49,029 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:49,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:49,033 INFO L85 PathProgramCache]: Analyzing trace with hash -6184136, now seen corresponding path program 1 times [2022-03-17 19:04:49,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:49,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834588074] [2022-03-17 19:04:49,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:49,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:49,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:49,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:04:49,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:49,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834588074] [2022-03-17 19:04:49,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834588074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:49,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:49,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:49,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227448330] [2022-03-17 19:04:49,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:49,550 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:49,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:49,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:49,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:49,575 INFO L87 Difference]: Start difference. First operand has 162 states, 154 states have (on average 1.7142857142857142) internal successors, (264), 155 states have internal predecessors, (264), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:52,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:52,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:52,909 INFO L93 Difference]: Finished difference Result 195 states and 320 transitions. [2022-03-17 19:04:52,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:52,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-03-17 19:04:52,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:52,920 INFO L225 Difference]: With dead ends: 195 [2022-03-17 19:04:52,920 INFO L226 Difference]: Without dead ends: 174 [2022-03-17 19:04:52,921 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:04:52,924 INFO L912 BasicCegarLoop]: 237 mSDtfsCounter, 34 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:52,925 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 631 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-17 19:04:52,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-03-17 19:04:52,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 157. [2022-03-17 19:04:52,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5657894736842106) internal successors, (238), 152 states have internal predecessors, (238), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:52,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 242 transitions. [2022-03-17 19:04:52,968 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 242 transitions. Word has length 51 [2022-03-17 19:04:52,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:52,971 INFO L478 AbstractCegarLoop]: Abstraction has 157 states and 242 transitions. [2022-03-17 19:04:52,971 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:52,972 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 242 transitions. [2022-03-17 19:04:52,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 19:04:52,974 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:52,974 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:52,974 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 19:04:52,974 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:52,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:52,975 INFO L85 PathProgramCache]: Analyzing trace with hash 2076241697, now seen corresponding path program 1 times [2022-03-17 19:04:52,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:52,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397360022] [2022-03-17 19:04:52,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:52,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:53,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:53,257 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:04:53,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:53,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397360022] [2022-03-17 19:04:53,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397360022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:53,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:53,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:53,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694511638] [2022-03-17 19:04:53,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:53,259 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:53,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:53,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:53,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:53,260 INFO L87 Difference]: Start difference. First operand 157 states and 242 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:54,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:56,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:58,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:58,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:58,842 INFO L93 Difference]: Finished difference Result 174 states and 262 transitions. [2022-03-17 19:04:58,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:58,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-17 19:04:58,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:58,844 INFO L225 Difference]: With dead ends: 174 [2022-03-17 19:04:58,845 INFO L226 Difference]: Without dead ends: 174 [2022-03-17 19:04:58,845 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:04:58,846 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 24 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:58,846 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 507 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 371 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 19:04:58,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-03-17 19:04:58,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 157. [2022-03-17 19:04:58,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5592105263157894) internal successors, (237), 152 states have internal predecessors, (237), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:58,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 241 transitions. [2022-03-17 19:04:58,859 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 241 transitions. Word has length 64 [2022-03-17 19:04:58,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:58,859 INFO L478 AbstractCegarLoop]: Abstraction has 157 states and 241 transitions. [2022-03-17 19:04:58,859 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:58,860 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 241 transitions. [2022-03-17 19:04:58,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 19:04:58,861 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:58,862 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:58,862 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 19:04:58,862 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:58,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:58,863 INFO L85 PathProgramCache]: Analyzing trace with hash 2005235870, now seen corresponding path program 1 times [2022-03-17 19:04:58,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:58,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898563249] [2022-03-17 19:04:58,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:58,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:59,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:59,018 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:04:59,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:59,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898563249] [2022-03-17 19:04:59,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898563249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:59,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:59,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:59,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758711325] [2022-03-17 19:04:59,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:59,020 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:59,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:59,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:59,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:59,021 INFO L87 Difference]: Start difference. First operand 157 states and 241 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:02,065 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 [] [2022-03-17 19:05:02,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:02,481 INFO L93 Difference]: Finished difference Result 173 states and 260 transitions. [2022-03-17 19:05:02,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:02,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-17 19:05:02,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:02,483 INFO L225 Difference]: With dead ends: 173 [2022-03-17 19:05:02,483 INFO L226 Difference]: Without dead ends: 173 [2022-03-17 19:05:02,484 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:02,485 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 28 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:02,485 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 509 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 19:05:02,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-03-17 19:05:02,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 157. [2022-03-17 19:05:02,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5526315789473684) internal successors, (236), 152 states have internal predecessors, (236), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:02,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 240 transitions. [2022-03-17 19:05:02,495 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 240 transitions. Word has length 65 [2022-03-17 19:05:02,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:02,495 INFO L478 AbstractCegarLoop]: Abstraction has 157 states and 240 transitions. [2022-03-17 19:05:02,495 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:02,495 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 240 transitions. [2022-03-17 19:05:02,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 19:05:02,497 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:02,497 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:02,497 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 19:05:02,497 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:02,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:02,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1327909762, now seen corresponding path program 1 times [2022-03-17 19:05:02,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:02,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154310669] [2022-03-17 19:05:02,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:02,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:02,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:02,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:05:02,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:02,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154310669] [2022-03-17 19:05:02,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154310669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:02,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:02,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:02,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379649357] [2022-03-17 19:05:02,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:02,684 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:02,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:02,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:02,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:02,684 INFO L87 Difference]: Start difference. First operand 157 states and 240 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:04,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:05,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:07,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:09,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:10,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:10,443 INFO L93 Difference]: Finished difference Result 173 states and 259 transitions. [2022-03-17 19:05:10,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:10,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-17 19:05:10,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:10,444 INFO L225 Difference]: With dead ends: 173 [2022-03-17 19:05:10,444 INFO L226 Difference]: Without dead ends: 173 [2022-03-17 19:05:10,444 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:10,445 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 26 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:10,446 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 509 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-03-17 19:05:10,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-03-17 19:05:10,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 157. [2022-03-17 19:05:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5460526315789473) internal successors, (235), 152 states have internal predecessors, (235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:10,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 239 transitions. [2022-03-17 19:05:10,458 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 239 transitions. Word has length 65 [2022-03-17 19:05:10,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:10,459 INFO L478 AbstractCegarLoop]: Abstraction has 157 states and 239 transitions. [2022-03-17 19:05:10,459 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:10,459 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 239 transitions. [2022-03-17 19:05:10,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 19:05:10,460 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:10,460 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:10,461 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 19:05:10,461 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:10,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:10,461 INFO L85 PathProgramCache]: Analyzing trace with hash 259801150, now seen corresponding path program 1 times [2022-03-17 19:05:10,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:10,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412373419] [2022-03-17 19:05:10,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:10,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:10,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:10,624 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:05:10,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:10,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412373419] [2022-03-17 19:05:10,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412373419] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:10,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:10,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:10,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476798350] [2022-03-17 19:05:10,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:10,626 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:10,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:10,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:10,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:10,627 INFO L87 Difference]: Start difference. First operand 157 states and 239 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:12,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:13,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:13,063 INFO L93 Difference]: Finished difference Result 171 states and 256 transitions. [2022-03-17 19:05:13,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:13,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-17 19:05:13,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:13,065 INFO L225 Difference]: With dead ends: 171 [2022-03-17 19:05:13,065 INFO L226 Difference]: Without dead ends: 171 [2022-03-17 19:05:13,066 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:13,066 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 20 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:13,067 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 513 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 362 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 19:05:13,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-03-17 19:05:13,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 157. [2022-03-17 19:05:13,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5394736842105263) internal successors, (234), 152 states have internal predecessors, (234), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:13,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 238 transitions. [2022-03-17 19:05:13,073 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 238 transitions. Word has length 65 [2022-03-17 19:05:13,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:13,073 INFO L478 AbstractCegarLoop]: Abstraction has 157 states and 238 transitions. [2022-03-17 19:05:13,073 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:13,073 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 238 transitions. [2022-03-17 19:05:13,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 19:05:13,074 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:13,074 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:13,075 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 19:05:13,075 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:13,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:13,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1672616674, now seen corresponding path program 1 times [2022-03-17 19:05:13,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:13,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577851851] [2022-03-17 19:05:13,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:13,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:13,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:13,188 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:05:13,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:13,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577851851] [2022-03-17 19:05:13,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577851851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:13,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:13,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:13,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97440626] [2022-03-17 19:05:13,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:13,189 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:13,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:13,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:13,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:13,190 INFO L87 Difference]: Start difference. First operand 157 states and 238 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:14,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:16,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:18,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:18,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:18,703 INFO L93 Difference]: Finished difference Result 170 states and 254 transitions. [2022-03-17 19:05:18,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:18,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-17 19:05:18,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:18,705 INFO L225 Difference]: With dead ends: 170 [2022-03-17 19:05:18,705 INFO L226 Difference]: Without dead ends: 170 [2022-03-17 19:05:18,705 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:18,706 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 18 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:18,706 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 515 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 363 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 19:05:18,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-03-17 19:05:18,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 157. [2022-03-17 19:05:18,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5328947368421053) internal successors, (233), 152 states have internal predecessors, (233), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:18,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 237 transitions. [2022-03-17 19:05:18,712 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 237 transitions. Word has length 65 [2022-03-17 19:05:18,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:18,712 INFO L478 AbstractCegarLoop]: Abstraction has 157 states and 237 transitions. [2022-03-17 19:05:18,712 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:18,713 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 237 transitions. [2022-03-17 19:05:18,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 19:05:18,713 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:18,713 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:18,714 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 19:05:18,714 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:18,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:18,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1494756417, now seen corresponding path program 1 times [2022-03-17 19:05:18,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:18,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365501693] [2022-03-17 19:05:18,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:18,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:18,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:18,863 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:05:18,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:18,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365501693] [2022-03-17 19:05:18,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365501693] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:18,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:18,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:18,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799345215] [2022-03-17 19:05:18,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:18,865 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:18,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:18,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:18,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:18,865 INFO L87 Difference]: Start difference. First operand 157 states and 237 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:21,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:23,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:25,419 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 [] [2022-03-17 19:05:25,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:25,958 INFO L93 Difference]: Finished difference Result 277 states and 423 transitions. [2022-03-17 19:05:25,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:25,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-17 19:05:25,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:25,961 INFO L225 Difference]: With dead ends: 277 [2022-03-17 19:05:25,961 INFO L226 Difference]: Without dead ends: 277 [2022-03-17 19:05:25,961 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:25,962 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 152 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:25,962 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 366 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-17 19:05:25,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-03-17 19:05:25,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 170. [2022-03-17 19:05:25,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5272727272727273) internal successors, (252), 165 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) [2022-03-17 19:05:25,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 256 transitions. [2022-03-17 19:05:25,968 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 256 transitions. Word has length 66 [2022-03-17 19:05:25,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:25,969 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 256 transitions. [2022-03-17 19:05:25,969 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:25,969 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 256 transitions. [2022-03-17 19:05:25,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 19:05:25,978 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:25,978 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:25,978 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 19:05:25,978 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:25,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:25,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1613548454, now seen corresponding path program 1 times [2022-03-17 19:05:25,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:25,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415545435] [2022-03-17 19:05:25,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:25,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:26,109 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:05:26,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:26,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415545435] [2022-03-17 19:05:26,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415545435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:26,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:26,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:26,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468722441] [2022-03-17 19:05:26,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:26,110 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:26,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:26,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:26,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:26,111 INFO L87 Difference]: Start difference. First operand 170 states and 256 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:28,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:30,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:30,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:30,666 INFO L93 Difference]: Finished difference Result 277 states and 421 transitions. [2022-03-17 19:05:30,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:30,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-17 19:05:30,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:30,668 INFO L225 Difference]: With dead ends: 277 [2022-03-17 19:05:30,668 INFO L226 Difference]: Without dead ends: 277 [2022-03-17 19:05:30,668 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:30,669 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 150 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:30,669 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 366 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-17 19:05:30,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-03-17 19:05:30,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 171. [2022-03-17 19:05:30,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 166 states have (on average 1.5180722891566265) internal successors, (252), 166 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) [2022-03-17 19:05:30,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 256 transitions. [2022-03-17 19:05:30,678 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 256 transitions. Word has length 67 [2022-03-17 19:05:30,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:30,678 INFO L478 AbstractCegarLoop]: Abstraction has 171 states and 256 transitions. [2022-03-17 19:05:30,678 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:30,678 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 256 transitions. [2022-03-17 19:05:30,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-17 19:05:30,679 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:30,679 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:30,679 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 19:05:30,680 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:30,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:30,680 INFO L85 PathProgramCache]: Analyzing trace with hash -572975874, now seen corresponding path program 1 times [2022-03-17 19:05:30,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:30,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203790356] [2022-03-17 19:05:30,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:30,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:30,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:30,810 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:05:30,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:30,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203790356] [2022-03-17 19:05:30,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203790356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:30,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:30,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:30,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577365134] [2022-03-17 19:05:30,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:30,812 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:30,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:30,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:30,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:30,812 INFO L87 Difference]: Start difference. First operand 171 states and 256 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:31,867 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 [] [2022-03-17 19:05:33,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:34,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:34,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:34,938 INFO L93 Difference]: Finished difference Result 277 states and 419 transitions. [2022-03-17 19:05:34,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:34,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-17 19:05:34,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:34,940 INFO L225 Difference]: With dead ends: 277 [2022-03-17 19:05:34,941 INFO L226 Difference]: Without dead ends: 277 [2022-03-17 19:05:34,941 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:34,941 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 148 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:34,942 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 366 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-17 19:05:34,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-03-17 19:05:34,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 172. [2022-03-17 19:05:34,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5089820359281436) internal successors, (252), 167 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) [2022-03-17 19:05:34,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 256 transitions. [2022-03-17 19:05:34,947 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 256 transitions. Word has length 68 [2022-03-17 19:05:34,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:34,948 INFO L478 AbstractCegarLoop]: Abstraction has 172 states and 256 transitions. [2022-03-17 19:05:34,948 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:34,948 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 256 transitions. [2022-03-17 19:05:34,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-17 19:05:34,949 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:34,949 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:34,949 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 19:05:34,949 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:34,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:34,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1695960111, now seen corresponding path program 1 times [2022-03-17 19:05:34,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:34,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521259233] [2022-03-17 19:05:34,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:34,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:35,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:05:35,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:35,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521259233] [2022-03-17 19:05:35,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521259233] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:35,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:35,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:35,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444753171] [2022-03-17 19:05:35,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:35,090 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:35,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:35,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:35,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:35,091 INFO L87 Difference]: Start difference. First operand 172 states and 256 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:38,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:39,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:39,464 INFO L93 Difference]: Finished difference Result 293 states and 441 transitions. [2022-03-17 19:05:39,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:39,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-17 19:05:39,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:39,467 INFO L225 Difference]: With dead ends: 293 [2022-03-17 19:05:39,467 INFO L226 Difference]: Without dead ends: 293 [2022-03-17 19:05:39,467 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:39,468 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 124 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:39,468 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 368 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 19:05:39,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-03-17 19:05:39,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 212. [2022-03-17 19:05:39,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 207 states have (on average 1.5555555555555556) internal successors, (322), 207 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:39,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 326 transitions. [2022-03-17 19:05:39,476 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 326 transitions. Word has length 68 [2022-03-17 19:05:39,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:39,477 INFO L478 AbstractCegarLoop]: Abstraction has 212 states and 326 transitions. [2022-03-17 19:05:39,477 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:39,477 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 326 transitions. [2022-03-17 19:05:39,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-17 19:05:39,478 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:39,478 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:39,478 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 19:05:39,478 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:39,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:39,479 INFO L85 PathProgramCache]: Analyzing trace with hash -749768695, now seen corresponding path program 1 times [2022-03-17 19:05:39,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:39,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167883877] [2022-03-17 19:05:39,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:39,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:39,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:39,593 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:05:39,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:39,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167883877] [2022-03-17 19:05:39,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167883877] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:39,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:39,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:39,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986460385] [2022-03-17 19:05:39,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:39,595 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:39,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:39,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:39,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:39,595 INFO L87 Difference]: Start difference. First operand 212 states and 326 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:41,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:42,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:42,074 INFO L93 Difference]: Finished difference Result 317 states and 488 transitions. [2022-03-17 19:05:42,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:42,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-17 19:05:42,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:42,076 INFO L225 Difference]: With dead ends: 317 [2022-03-17 19:05:42,076 INFO L226 Difference]: Without dead ends: 317 [2022-03-17 19:05:42,076 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:42,077 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 123 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:42,077 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 394 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 19:05:42,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-03-17 19:05:42,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 237. [2022-03-17 19:05:42,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5991379310344827) internal successors, (371), 232 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:42,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 375 transitions. [2022-03-17 19:05:42,083 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 375 transitions. Word has length 69 [2022-03-17 19:05:42,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:42,084 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 375 transitions. [2022-03-17 19:05:42,084 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:42,084 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 375 transitions. [2022-03-17 19:05:42,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-17 19:05:42,085 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:42,085 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:42,085 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 19:05:42,085 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:42,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:42,086 INFO L85 PathProgramCache]: Analyzing trace with hash -270896222, now seen corresponding path program 1 times [2022-03-17 19:05:42,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:42,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546447284] [2022-03-17 19:05:42,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:42,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:42,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:42,230 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:05:42,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:42,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546447284] [2022-03-17 19:05:42,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546447284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:42,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:42,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:42,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923364318] [2022-03-17 19:05:42,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:42,231 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:42,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:42,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:42,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:42,232 INFO L87 Difference]: Start difference. First operand 237 states and 375 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:44,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:46,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:47,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:47,032 INFO L93 Difference]: Finished difference Result 393 states and 622 transitions. [2022-03-17 19:05:47,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:47,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-17 19:05:47,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:47,034 INFO L225 Difference]: With dead ends: 393 [2022-03-17 19:05:47,034 INFO L226 Difference]: Without dead ends: 393 [2022-03-17 19:05:47,034 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:47,035 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 129 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:47,035 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 378 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 19:05:47,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-03-17 19:05:47,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 301. [2022-03-17 19:05:47,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.625) internal successors, (481), 296 states have internal predecessors, (481), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:47,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 485 transitions. [2022-03-17 19:05:47,043 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 485 transitions. Word has length 97 [2022-03-17 19:05:47,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:47,043 INFO L478 AbstractCegarLoop]: Abstraction has 301 states and 485 transitions. [2022-03-17 19:05:47,043 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:47,043 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 485 transitions. [2022-03-17 19:05:47,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-03-17 19:05:47,044 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:47,044 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-17 19:05:47,045 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 19:05:47,045 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:47,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:47,045 INFO L85 PathProgramCache]: Analyzing trace with hash 856203158, now seen corresponding path program 1 times [2022-03-17 19:05:47,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:47,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726576959] [2022-03-17 19:05:47,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:47,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:47,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:47,163 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:05:47,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:47,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726576959] [2022-03-17 19:05:47,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726576959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:47,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:47,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:47,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533547467] [2022-03-17 19:05:47,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:47,164 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:47,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:47,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:47,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:47,165 INFO L87 Difference]: Start difference. First operand 301 states and 485 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:48,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:50,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:53,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:53,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:53,773 INFO L93 Difference]: Finished difference Result 421 states and 665 transitions. [2022-03-17 19:05:53,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:53,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2022-03-17 19:05:53,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:53,775 INFO L225 Difference]: With dead ends: 421 [2022-03-17 19:05:53,775 INFO L226 Difference]: Without dead ends: 421 [2022-03-17 19:05:53,776 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:53,776 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 125 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:53,776 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 366 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 484 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-03-17 19:05:53,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-03-17 19:05:53,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 338. [2022-03-17 19:05:53,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 333 states have (on average 1.6336336336336337) internal successors, (544), 333 states have internal predecessors, (544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:53,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 548 transitions. [2022-03-17 19:05:53,784 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 548 transitions. Word has length 102 [2022-03-17 19:05:53,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:53,784 INFO L478 AbstractCegarLoop]: Abstraction has 338 states and 548 transitions. [2022-03-17 19:05:53,784 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:53,785 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 548 transitions. [2022-03-17 19:05:53,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-03-17 19:05:53,785 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:53,786 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-17 19:05:53,786 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 19:05:53,786 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:53,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:53,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1180104561, now seen corresponding path program 1 times [2022-03-17 19:05:53,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:53,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226090139] [2022-03-17 19:05:53,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:53,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:53,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:53,899 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-17 19:05:53,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:53,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226090139] [2022-03-17 19:05:53,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226090139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:53,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:53,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:53,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580585061] [2022-03-17 19:05:53,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:53,900 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:53,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:53,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:53,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:53,901 INFO L87 Difference]: Start difference. First operand 338 states and 548 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:55,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:56,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:56,300 INFO L93 Difference]: Finished difference Result 381 states and 610 transitions. [2022-03-17 19:05:56,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:56,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2022-03-17 19:05:56,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:56,302 INFO L225 Difference]: With dead ends: 381 [2022-03-17 19:05:56,302 INFO L226 Difference]: Without dead ends: 381 [2022-03-17 19:05:56,302 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:56,303 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 31 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:56,303 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 527 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 19:05:56,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-03-17 19:05:56,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 360. [2022-03-17 19:05:56,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 355 states have (on average 1.6309859154929578) internal successors, (579), 355 states have internal predecessors, (579), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:56,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 583 transitions. [2022-03-17 19:05:56,311 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 583 transitions. Word has length 103 [2022-03-17 19:05:56,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:56,311 INFO L478 AbstractCegarLoop]: Abstraction has 360 states and 583 transitions. [2022-03-17 19:05:56,311 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:56,311 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 583 transitions. [2022-03-17 19:05:56,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-17 19:05:56,312 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:56,313 INFO L500 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:56,313 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 19:05:56,313 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:56,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:56,313 INFO L85 PathProgramCache]: Analyzing trace with hash -259403225, now seen corresponding path program 1 times [2022-03-17 19:05:56,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:56,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211481022] [2022-03-17 19:05:56,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:56,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:56,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:56,428 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 19:05:56,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:56,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211481022] [2022-03-17 19:05:56,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211481022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:56,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:56,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:56,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813081625] [2022-03-17 19:05:56,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:56,429 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:56,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:56,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:56,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:56,430 INFO L87 Difference]: Start difference. First operand 360 states and 583 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:57,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:59,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:01,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:02,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:06:02,226 INFO L93 Difference]: Finished difference Result 381 states and 609 transitions. [2022-03-17 19:06:02,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:06:02,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-17 19:06:02,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:06:02,229 INFO L225 Difference]: With dead ends: 381 [2022-03-17 19:06:02,229 INFO L226 Difference]: Without dead ends: 381 [2022-03-17 19:06:02,229 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:06:02,230 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 36 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:06:02,230 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 527 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 403 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 19:06:02,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-03-17 19:06:02,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 360. [2022-03-17 19:06:02,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 355 states have (on average 1.628169014084507) internal successors, (578), 355 states have internal predecessors, (578), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:02,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 582 transitions. [2022-03-17 19:06:02,237 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 582 transitions. Word has length 110 [2022-03-17 19:06:02,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:06:02,237 INFO L478 AbstractCegarLoop]: Abstraction has 360 states and 582 transitions. [2022-03-17 19:06:02,237 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:02,238 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 582 transitions. [2022-03-17 19:06:02,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-17 19:06:02,238 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:06:02,239 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:06:02,239 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 19:06:02,239 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:06:02,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:06:02,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1251152028, now seen corresponding path program 1 times [2022-03-17 19:06:02,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:06:02,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337043266] [2022-03-17 19:06:02,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:06:02,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:06:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:02,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:06:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:02,367 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 19:06:02,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:06:02,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337043266] [2022-03-17 19:06:02,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337043266] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:06:02,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:06:02,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:06:02,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500593582] [2022-03-17 19:06:02,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:06:02,368 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:06:02,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:06:02,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:06:02,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:06:02,369 INFO L87 Difference]: Start difference. First operand 360 states and 582 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:04,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:06,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:08,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:08,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:06:08,496 INFO L93 Difference]: Finished difference Result 440 states and 689 transitions. [2022-03-17 19:06:08,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:06:08,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-03-17 19:06:08,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:06:08,499 INFO L225 Difference]: With dead ends: 440 [2022-03-17 19:06:08,499 INFO L226 Difference]: Without dead ends: 440 [2022-03-17 19:06:08,499 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:06:08,500 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 145 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:06:08,500 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 366 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 19:06:08,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-03-17 19:06:08,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 360. [2022-03-17 19:06:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 355 states have (on average 1.611267605633803) internal successors, (572), 355 states have internal predecessors, (572), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:08,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 576 transitions. [2022-03-17 19:06:08,508 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 576 transitions. Word has length 111 [2022-03-17 19:06:08,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:06:08,508 INFO L478 AbstractCegarLoop]: Abstraction has 360 states and 576 transitions. [2022-03-17 19:06:08,508 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:08,508 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 576 transitions. [2022-03-17 19:06:08,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-17 19:06:08,509 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:06:08,509 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-17 19:06:08,509 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 19:06:08,510 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:06:08,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:06:08,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1419682677, now seen corresponding path program 1 times [2022-03-17 19:06:08,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:06:08,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808716153] [2022-03-17 19:06:08,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:06:08,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:06:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:08,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:06:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:08,638 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-17 19:06:08,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:06:08,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808716153] [2022-03-17 19:06:08,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808716153] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:06:08,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:06:08,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:06:08,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130744526] [2022-03-17 19:06:08,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:06:08,639 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:06:08,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:06:08,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:06:08,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:06:08,640 INFO L87 Difference]: Start difference. First operand 360 states and 576 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) [2022-03-17 19:06:09,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:11,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:13,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:15,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:15,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:06:15,908 INFO L93 Difference]: Finished difference Result 389 states and 615 transitions. [2022-03-17 19:06:15,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:06:15,909 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 117 [2022-03-17 19:06:15,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:06:15,910 INFO L225 Difference]: With dead ends: 389 [2022-03-17 19:06:15,910 INFO L226 Difference]: Without dead ends: 389 [2022-03-17 19:06:15,911 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:06:15,911 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 19 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:06:15,911 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 592 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 19:06:15,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-03-17 19:06:15,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 376. [2022-03-17 19:06:15,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 371 states have (on average 1.6037735849056605) internal successors, (595), 371 states have internal predecessors, (595), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:15,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 599 transitions. [2022-03-17 19:06:15,921 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 599 transitions. Word has length 117 [2022-03-17 19:06:15,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:06:15,922 INFO L478 AbstractCegarLoop]: Abstraction has 376 states and 599 transitions. [2022-03-17 19:06:15,922 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) [2022-03-17 19:06:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 599 transitions. [2022-03-17 19:06:15,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-17 19:06:15,923 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:06:15,923 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-17 19:06:15,923 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 19:06:15,923 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:06:15,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:06:15,924 INFO L85 PathProgramCache]: Analyzing trace with hash -587358197, now seen corresponding path program 1 times [2022-03-17 19:06:15,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:06:15,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925951949] [2022-03-17 19:06:15,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:06:15,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:06:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:16,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:06:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:16,066 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-17 19:06:16,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:06:16,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925951949] [2022-03-17 19:06:16,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925951949] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:06:16,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:06:16,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:06:16,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343627628] [2022-03-17 19:06:16,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:06:16,067 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:06:16,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:06:16,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:06:16,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:06:16,068 INFO L87 Difference]: Start difference. First operand 376 states and 599 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:18,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:20,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:22,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:23,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:06:23,015 INFO L93 Difference]: Finished difference Result 394 states and 622 transitions. [2022-03-17 19:06:23,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:06:23,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-17 19:06:23,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:06:23,017 INFO L225 Difference]: With dead ends: 394 [2022-03-17 19:06:23,017 INFO L226 Difference]: Without dead ends: 394 [2022-03-17 19:06:23,018 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:06:23,018 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 32 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:06:23,018 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 533 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 397 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-17 19:06:23,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-03-17 19:06:23,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 376. [2022-03-17 19:06:23,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 371 states have (on average 1.601078167115903) internal successors, (594), 371 states have internal predecessors, (594), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:23,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 598 transitions. [2022-03-17 19:06:23,026 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 598 transitions. Word has length 117 [2022-03-17 19:06:23,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:06:23,026 INFO L478 AbstractCegarLoop]: Abstraction has 376 states and 598 transitions. [2022-03-17 19:06:23,026 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:23,026 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 598 transitions. [2022-03-17 19:06:23,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-17 19:06:23,027 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:06:23,027 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-17 19:06:23,027 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 19:06:23,027 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:06:23,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:06:23,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1813192879, now seen corresponding path program 1 times [2022-03-17 19:06:23,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:06:23,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162264905] [2022-03-17 19:06:23,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:06:23,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:06:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:23,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:06:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:23,158 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-03-17 19:06:23,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:06:23,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162264905] [2022-03-17 19:06:23,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162264905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:06:23,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:06:23,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 19:06:23,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545190367] [2022-03-17 19:06:23,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:06:23,159 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 19:06:23,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:06:23,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 19:06:23,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:06:23,160 INFO L87 Difference]: Start difference. First operand 376 states and 598 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:25,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:25,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:06:25,562 INFO L93 Difference]: Finished difference Result 385 states and 609 transitions. [2022-03-17 19:06:25,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 19:06:25,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-17 19:06:25,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:06:25,565 INFO L225 Difference]: With dead ends: 385 [2022-03-17 19:06:25,565 INFO L226 Difference]: Without dead ends: 385 [2022-03-17 19:06:25,565 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-17 19:06:25,565 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 3 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:06:25,566 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 665 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 439 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 19:06:25,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-03-17 19:06:25,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2022-03-17 19:06:25,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.5921052631578947) internal successors, (605), 380 states have internal predecessors, (605), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:25,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 609 transitions. [2022-03-17 19:06:25,573 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 609 transitions. Word has length 118 [2022-03-17 19:06:25,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:06:25,573 INFO L478 AbstractCegarLoop]: Abstraction has 385 states and 609 transitions. [2022-03-17 19:06:25,573 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:25,573 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 609 transitions. [2022-03-17 19:06:25,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-17 19:06:25,574 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:06:25,574 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-17 19:06:25,575 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 19:06:25,575 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:06:25,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:06:25,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1814516943, now seen corresponding path program 1 times [2022-03-17 19:06:25,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:06:25,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330476001] [2022-03-17 19:06:25,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:06:25,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:06:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:25,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:06:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:25,704 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-17 19:06:25,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:06:25,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330476001] [2022-03-17 19:06:25,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330476001] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:06:25,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:06:25,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:06:25,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788881757] [2022-03-17 19:06:25,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:06:25,705 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:06:25,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:06:25,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:06:25,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:06:25,706 INFO L87 Difference]: Start difference. First operand 385 states and 609 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:27,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:29,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:31,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:31,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:06:31,533 INFO L93 Difference]: Finished difference Result 402 states and 630 transitions. [2022-03-17 19:06:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:06:31,533 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 118 [2022-03-17 19:06:31,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:06:31,535 INFO L225 Difference]: With dead ends: 402 [2022-03-17 19:06:31,535 INFO L226 Difference]: Without dead ends: 402 [2022-03-17 19:06:31,535 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:06:31,535 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 36 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:06:31,536 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 535 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 19:06:31,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-03-17 19:06:31,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 385. [2022-03-17 19:06:31,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.5894736842105264) internal successors, (604), 380 states have internal predecessors, (604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:31,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 608 transitions. [2022-03-17 19:06:31,543 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 608 transitions. Word has length 118 [2022-03-17 19:06:31,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:06:31,543 INFO L478 AbstractCegarLoop]: Abstraction has 385 states and 608 transitions. [2022-03-17 19:06:31,543 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:31,544 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 608 transitions. [2022-03-17 19:06:31,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-17 19:06:31,544 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:06:31,545 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:06:31,545 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 19:06:31,545 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:06:31,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:06:31,545 INFO L85 PathProgramCache]: Analyzing trace with hash 265444301, now seen corresponding path program 1 times [2022-03-17 19:06:31,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:06:31,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465901531] [2022-03-17 19:06:31,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:06:31,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:06:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:31,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:06:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:31,660 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-17 19:06:31,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:06:31,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465901531] [2022-03-17 19:06:31,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465901531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:06:31,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:06:31,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:06:31,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013874360] [2022-03-17 19:06:31,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:06:31,662 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:06:31,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:06:31,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:06:31,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:06:31,662 INFO L87 Difference]: Start difference. First operand 385 states and 608 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:32,799 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 [] [2022-03-17 19:06:34,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:37,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:37,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:06:37,829 INFO L93 Difference]: Finished difference Result 392 states and 617 transitions. [2022-03-17 19:06:37,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:06:37,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-17 19:06:37,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:06:37,831 INFO L225 Difference]: With dead ends: 392 [2022-03-17 19:06:37,831 INFO L226 Difference]: Without dead ends: 392 [2022-03-17 19:06:37,831 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:06:37,832 INFO L912 BasicCegarLoop]: 214 mSDtfsCounter, 30 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:06:37,832 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 549 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 19:06:37,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-03-17 19:06:37,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 385. [2022-03-17 19:06:37,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.5868421052631578) internal successors, (603), 380 states have internal predecessors, (603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:37,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 607 transitions. [2022-03-17 19:06:37,839 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 607 transitions. Word has length 124 [2022-03-17 19:06:37,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:06:37,840 INFO L478 AbstractCegarLoop]: Abstraction has 385 states and 607 transitions. [2022-03-17 19:06:37,840 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:37,840 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 607 transitions. [2022-03-17 19:06:37,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-17 19:06:37,841 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:06:37,841 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:06:37,841 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 19:06:37,841 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:06:37,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:06:37,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1400381102, now seen corresponding path program 1 times [2022-03-17 19:06:37,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:06:37,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553943175] [2022-03-17 19:06:37,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:06:37,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:06:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:37,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:06:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:38,001 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:06:38,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:06:38,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553943175] [2022-03-17 19:06:38,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553943175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:06:38,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:06:38,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:06:38,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657848916] [2022-03-17 19:06:38,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:06:38,002 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:06:38,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:06:38,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:06:38,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:06:38,003 INFO L87 Difference]: Start difference. First operand 385 states and 607 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:40,019 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 [] [2022-03-17 19:06:40,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:06:40,484 INFO L93 Difference]: Finished difference Result 474 states and 729 transitions. [2022-03-17 19:06:40,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:06:40,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-17 19:06:40,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:06:40,487 INFO L225 Difference]: With dead ends: 474 [2022-03-17 19:06:40,487 INFO L226 Difference]: Without dead ends: 474 [2022-03-17 19:06:40,487 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:06:40,487 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 123 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:06:40,488 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 394 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 19:06:40,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-03-17 19:06:40,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 385. [2022-03-17 19:06:40,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.581578947368421) internal successors, (601), 380 states have internal predecessors, (601), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:40,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 605 transitions. [2022-03-17 19:06:40,495 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 605 transitions. Word has length 125 [2022-03-17 19:06:40,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:06:40,495 INFO L478 AbstractCegarLoop]: Abstraction has 385 states and 605 transitions. [2022-03-17 19:06:40,495 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:40,495 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 605 transitions. [2022-03-17 19:06:40,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 19:06:40,496 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:06:40,497 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:06:40,497 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 19:06:40,497 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:06:40,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:06:40,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1931032870, now seen corresponding path program 1 times [2022-03-17 19:06:40,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:06:40,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146904760] [2022-03-17 19:06:40,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:06:40,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:06:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:40,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:06:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:40,630 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 19:06:40,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:06:40,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146904760] [2022-03-17 19:06:40,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146904760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:06:40,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:06:40,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:06:40,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684434377] [2022-03-17 19:06:40,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:06:40,631 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:06:40,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:06:40,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:06:40,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:06:40,632 INFO L87 Difference]: Start difference. First operand 385 states and 605 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:42,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:43,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:06:43,082 INFO L93 Difference]: Finished difference Result 472 states and 722 transitions. [2022-03-17 19:06:43,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:06:43,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-17 19:06:43,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:06:43,085 INFO L225 Difference]: With dead ends: 472 [2022-03-17 19:06:43,085 INFO L226 Difference]: Without dead ends: 472 [2022-03-17 19:06:43,085 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:06:43,085 INFO L912 BasicCegarLoop]: 127 mSDtfsCounter, 144 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:06:43,085 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 370 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 19:06:43,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-03-17 19:06:43,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 385. [2022-03-17 19:06:43,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.568421052631579) internal successors, (596), 380 states have internal predecessors, (596), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:43,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 600 transitions. [2022-03-17 19:06:43,092 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 600 transitions. Word has length 132 [2022-03-17 19:06:43,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:06:43,093 INFO L478 AbstractCegarLoop]: Abstraction has 385 states and 600 transitions. [2022-03-17 19:06:43,093 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:43,093 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 600 transitions. [2022-03-17 19:06:43,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-17 19:06:43,094 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:06:43,094 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:06:43,094 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 19:06:43,095 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:06:43,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:06:43,095 INFO L85 PathProgramCache]: Analyzing trace with hash -512603857, now seen corresponding path program 1 times [2022-03-17 19:06:43,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:06:43,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019445530] [2022-03-17 19:06:43,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:06:43,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:06:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:43,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:06:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:43,231 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:06:43,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:06:43,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019445530] [2022-03-17 19:06:43,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019445530] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:06:43,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:06:43,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:06:43,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185854045] [2022-03-17 19:06:43,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:06:43,232 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:06:43,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:06:43,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:06:43,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:06:43,233 INFO L87 Difference]: Start difference. First operand 385 states and 600 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:44,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:45,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:46,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:06:46,666 INFO L93 Difference]: Finished difference Result 514 states and 788 transitions. [2022-03-17 19:06:46,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:06:46,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-17 19:06:46,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:06:46,668 INFO L225 Difference]: With dead ends: 514 [2022-03-17 19:06:46,669 INFO L226 Difference]: Without dead ends: 514 [2022-03-17 19:06:46,669 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:06:46,669 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 116 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:06:46,670 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 367 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 19:06:46,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-03-17 19:06:46,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 428. [2022-03-17 19:06:46,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 423 states have (on average 1.574468085106383) internal successors, (666), 423 states have internal predecessors, (666), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:46,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 670 transitions. [2022-03-17 19:06:46,677 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 670 transitions. Word has length 133 [2022-03-17 19:06:46,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:06:46,678 INFO L478 AbstractCegarLoop]: Abstraction has 428 states and 670 transitions. [2022-03-17 19:06:46,678 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:46,678 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 670 transitions. [2022-03-17 19:06:46,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-17 19:06:46,679 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:06:46,679 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:06:46,679 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 19:06:46,679 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:06:46,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:06:46,680 INFO L85 PathProgramCache]: Analyzing trace with hash -796549232, now seen corresponding path program 1 times [2022-03-17 19:06:46,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:06:46,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155411838] [2022-03-17 19:06:46,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:06:46,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:06:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:46,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:06:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:46,808 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:06:46,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:06:46,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155411838] [2022-03-17 19:06:46,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155411838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:06:46,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:06:46,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:06:46,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769959576] [2022-03-17 19:06:46,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:06:46,809 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:06:46,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:06:46,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:06:46,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:06:46,810 INFO L87 Difference]: Start difference. First operand 428 states and 670 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:48,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:49,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:51,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:52,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:53,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:06:53,394 INFO L93 Difference]: Finished difference Result 517 states and 793 transitions. [2022-03-17 19:06:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:06:53,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-17 19:06:53,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:06:53,396 INFO L225 Difference]: With dead ends: 517 [2022-03-17 19:06:53,396 INFO L226 Difference]: Without dead ends: 515 [2022-03-17 19:06:53,396 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:06:53,397 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 117 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:06:53,397 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 394 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-03-17 19:06:53,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-03-17 19:06:53,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 430. [2022-03-17 19:06:53,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5741176470588236) internal successors, (669), 425 states have internal predecessors, (669), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:53,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 673 transitions. [2022-03-17 19:06:53,431 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 673 transitions. Word has length 134 [2022-03-17 19:06:53,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:06:53,431 INFO L478 AbstractCegarLoop]: Abstraction has 430 states and 673 transitions. [2022-03-17 19:06:53,432 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:53,432 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 673 transitions. [2022-03-17 19:06:53,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 19:06:53,433 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:06:53,433 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:06:53,434 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 19:06:53,434 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:06:53,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:06:53,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1510348940, now seen corresponding path program 1 times [2022-03-17 19:06:53,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:06:53,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143931283] [2022-03-17 19:06:53,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:06:53,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:06:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:53,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:06:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:53,571 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 19:06:53,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:06:53,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143931283] [2022-03-17 19:06:53,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143931283] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:06:53,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:06:53,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:06:53,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726295609] [2022-03-17 19:06:53,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:06:53,572 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:06:53,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:06:53,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:06:53,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:06:53,573 INFO L87 Difference]: Start difference. First operand 430 states and 673 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:56,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:58,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:06:59,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:06:59,120 INFO L93 Difference]: Finished difference Result 505 states and 771 transitions. [2022-03-17 19:06:59,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:06:59,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-17 19:06:59,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:06:59,122 INFO L225 Difference]: With dead ends: 505 [2022-03-17 19:06:59,122 INFO L226 Difference]: Without dead ends: 505 [2022-03-17 19:06:59,122 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:06:59,123 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 147 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:06:59,123 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 398 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 19:06:59,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-03-17 19:06:59,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 430. [2022-03-17 19:06:59,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5576470588235294) internal successors, (662), 425 states have internal predecessors, (662), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:59,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 666 transitions. [2022-03-17 19:06:59,130 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 666 transitions. Word has length 146 [2022-03-17 19:06:59,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:06:59,130 INFO L478 AbstractCegarLoop]: Abstraction has 430 states and 666 transitions. [2022-03-17 19:06:59,130 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:06:59,131 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 666 transitions. [2022-03-17 19:06:59,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 19:06:59,132 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:06:59,132 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:06:59,132 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 19:06:59,132 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:06:59,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:06:59,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1478589548, now seen corresponding path program 1 times [2022-03-17 19:06:59,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:06:59,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758697523] [2022-03-17 19:06:59,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:06:59,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:06:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:59,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:06:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:06:59,262 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 19:06:59,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:06:59,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758697523] [2022-03-17 19:06:59,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758697523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:06:59,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:06:59,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:06:59,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130014571] [2022-03-17 19:06:59,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:06:59,263 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:06:59,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:06:59,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:06:59,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:06:59,264 INFO L87 Difference]: Start difference. First operand 430 states and 666 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:01,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:03,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:03,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:03,467 INFO L93 Difference]: Finished difference Result 495 states and 751 transitions. [2022-03-17 19:07:03,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:07:03,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-17 19:07:03,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:03,470 INFO L225 Difference]: With dead ends: 495 [2022-03-17 19:07:03,470 INFO L226 Difference]: Without dead ends: 495 [2022-03-17 19:07:03,470 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:07:03,470 INFO L912 BasicCegarLoop]: 151 mSDtfsCounter, 138 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:03,471 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 418 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-17 19:07:03,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2022-03-17 19:07:03,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 430. [2022-03-17 19:07:03,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5411764705882354) internal successors, (655), 425 states have internal predecessors, (655), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:03,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 659 transitions. [2022-03-17 19:07:03,477 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 659 transitions. Word has length 146 [2022-03-17 19:07:03,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:03,478 INFO L478 AbstractCegarLoop]: Abstraction has 430 states and 659 transitions. [2022-03-17 19:07:03,478 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:03,478 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 659 transitions. [2022-03-17 19:07:03,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 19:07:03,479 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:03,479 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:03,479 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 19:07:03,480 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:03,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:03,480 INFO L85 PathProgramCache]: Analyzing trace with hash 24615192, now seen corresponding path program 1 times [2022-03-17 19:07:03,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:03,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581844434] [2022-03-17 19:07:03,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:03,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:03,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:03,603 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 19:07:03,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:03,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581844434] [2022-03-17 19:07:03,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581844434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:03,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:03,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:07:03,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388085027] [2022-03-17 19:07:03,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:03,604 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:07:03,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:03,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:07:03,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:07:03,604 INFO L87 Difference]: Start difference. First operand 430 states and 659 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:05,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:07,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:07,583 INFO L93 Difference]: Finished difference Result 505 states and 768 transitions. [2022-03-17 19:07:07,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:07:07,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-17 19:07:07,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:07,585 INFO L225 Difference]: With dead ends: 505 [2022-03-17 19:07:07,585 INFO L226 Difference]: Without dead ends: 505 [2022-03-17 19:07:07,585 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:07:07,585 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 65 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:07,585 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 523 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-17 19:07:07,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-03-17 19:07:07,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 462. [2022-03-17 19:07:07,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 457 states have (on average 1.5404814004376368) internal successors, (704), 457 states have internal predecessors, (704), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:07,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 708 transitions. [2022-03-17 19:07:07,592 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 708 transitions. Word has length 146 [2022-03-17 19:07:07,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:07,592 INFO L478 AbstractCegarLoop]: Abstraction has 462 states and 708 transitions. [2022-03-17 19:07:07,592 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:07,592 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 708 transitions. [2022-03-17 19:07:07,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 19:07:07,594 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:07,594 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:07,594 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 19:07:07,594 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:07,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:07,594 INFO L85 PathProgramCache]: Analyzing trace with hash -928586441, now seen corresponding path program 1 times [2022-03-17 19:07:07,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:07,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203716378] [2022-03-17 19:07:07,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:07,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:07,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:07,769 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 19:07:07,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:07,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203716378] [2022-03-17 19:07:07,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203716378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:07,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:07,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:07:07,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450102696] [2022-03-17 19:07:07,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:07,771 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:07:07,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:07,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:07:07,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:07:07,771 INFO L87 Difference]: Start difference. First operand 462 states and 708 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:10,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:12,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:12,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:12,985 INFO L93 Difference]: Finished difference Result 569 states and 860 transitions. [2022-03-17 19:07:12,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:07:12,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-17 19:07:12,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:12,987 INFO L225 Difference]: With dead ends: 569 [2022-03-17 19:07:12,988 INFO L226 Difference]: Without dead ends: 569 [2022-03-17 19:07:12,988 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:07:12,989 INFO L912 BasicCegarLoop]: 151 mSDtfsCounter, 119 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:12,989 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 418 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 19:07:12,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-03-17 19:07:12,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 460. [2022-03-17 19:07:12,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 455 states have (on average 1.531868131868132) internal successors, (697), 455 states have internal predecessors, (697), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:12,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 701 transitions. [2022-03-17 19:07:12,996 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 701 transitions. Word has length 146 [2022-03-17 19:07:12,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:12,996 INFO L478 AbstractCegarLoop]: Abstraction has 460 states and 701 transitions. [2022-03-17 19:07:12,996 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:12,996 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 701 transitions. [2022-03-17 19:07:12,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-17 19:07:12,997 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:12,997 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:12,998 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 19:07:12,998 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:12,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:12,998 INFO L85 PathProgramCache]: Analyzing trace with hash 511559468, now seen corresponding path program 1 times [2022-03-17 19:07:12,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:12,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721566370] [2022-03-17 19:07:12,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:12,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:13,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:13,130 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 19:07:13,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:13,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721566370] [2022-03-17 19:07:13,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721566370] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:13,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:13,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:07:13,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795675617] [2022-03-17 19:07:13,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:13,131 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:07:13,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:13,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:07:13,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:07:13,132 INFO L87 Difference]: Start difference. First operand 460 states and 701 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:15,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:18,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:18,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:18,515 INFO L93 Difference]: Finished difference Result 525 states and 787 transitions. [2022-03-17 19:07:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:07:18,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-17 19:07:18,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:18,517 INFO L225 Difference]: With dead ends: 525 [2022-03-17 19:07:18,517 INFO L226 Difference]: Without dead ends: 525 [2022-03-17 19:07:18,517 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:07:18,518 INFO L912 BasicCegarLoop]: 151 mSDtfsCounter, 118 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:18,518 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 418 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 19:07:18,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-03-17 19:07:18,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 460. [2022-03-17 19:07:18,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 455 states have (on average 1.5186813186813186) internal successors, (691), 455 states have internal predecessors, (691), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:18,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 695 transitions. [2022-03-17 19:07:18,525 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 695 transitions. Word has length 147 [2022-03-17 19:07:18,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:18,525 INFO L478 AbstractCegarLoop]: Abstraction has 460 states and 695 transitions. [2022-03-17 19:07:18,525 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:18,525 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 695 transitions. [2022-03-17 19:07:18,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-17 19:07:18,526 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:18,527 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:18,527 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 19:07:18,527 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:18,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:18,527 INFO L85 PathProgramCache]: Analyzing trace with hash -70968412, now seen corresponding path program 1 times [2022-03-17 19:07:18,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:18,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439877740] [2022-03-17 19:07:18,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:18,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:18,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:18,670 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 19:07:18,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:18,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439877740] [2022-03-17 19:07:18,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439877740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:18,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:18,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:07:18,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353660661] [2022-03-17 19:07:18,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:18,671 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:07:18,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:18,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:07:18,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:07:18,672 INFO L87 Difference]: Start difference. First operand 460 states and 695 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:20,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:21,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:21,101 INFO L93 Difference]: Finished difference Result 567 states and 844 transitions. [2022-03-17 19:07:21,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:07:21,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-03-17 19:07:21,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:21,103 INFO L225 Difference]: With dead ends: 567 [2022-03-17 19:07:21,103 INFO L226 Difference]: Without dead ends: 567 [2022-03-17 19:07:21,104 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:07:21,104 INFO L912 BasicCegarLoop]: 151 mSDtfsCounter, 120 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:21,104 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 418 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 19:07:21,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-03-17 19:07:21,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 488. [2022-03-17 19:07:21,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 483 states have (on average 1.5072463768115942) internal successors, (728), 483 states have internal predecessors, (728), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:21,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 732 transitions. [2022-03-17 19:07:21,112 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 732 transitions. Word has length 149 [2022-03-17 19:07:21,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:21,112 INFO L478 AbstractCegarLoop]: Abstraction has 488 states and 732 transitions. [2022-03-17 19:07:21,112 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:21,112 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 732 transitions. [2022-03-17 19:07:21,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-17 19:07:21,113 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:21,114 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:21,114 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 19:07:21,114 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:21,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:21,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1676992206, now seen corresponding path program 1 times [2022-03-17 19:07:21,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:21,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912366350] [2022-03-17 19:07:21,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:21,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:21,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:21,239 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 19:07:21,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:21,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912366350] [2022-03-17 19:07:21,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912366350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:21,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:21,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:07:21,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102586619] [2022-03-17 19:07:21,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:21,240 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:07:21,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:21,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:07:21,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:07:21,241 INFO L87 Difference]: Start difference. First operand 488 states and 732 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:24,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:26,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:27,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:28,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:28,109 INFO L93 Difference]: Finished difference Result 553 states and 817 transitions. [2022-03-17 19:07:28,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:07:28,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-17 19:07:28,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:28,111 INFO L225 Difference]: With dead ends: 553 [2022-03-17 19:07:28,111 INFO L226 Difference]: Without dead ends: 553 [2022-03-17 19:07:28,111 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:07:28,112 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 119 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:28,112 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 390 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-03-17 19:07:28,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-03-17 19:07:28,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 488. [2022-03-17 19:07:28,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 483 states have (on average 1.4927536231884058) internal successors, (721), 483 states have internal predecessors, (721), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:28,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 725 transitions. [2022-03-17 19:07:28,118 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 725 transitions. Word has length 150 [2022-03-17 19:07:28,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:28,119 INFO L478 AbstractCegarLoop]: Abstraction has 488 states and 725 transitions. [2022-03-17 19:07:28,119 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:28,119 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 725 transitions. [2022-03-17 19:07:28,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-17 19:07:28,120 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:28,120 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:28,120 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 19:07:28,120 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:28,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:28,121 INFO L85 PathProgramCache]: Analyzing trace with hash -713601832, now seen corresponding path program 1 times [2022-03-17 19:07:28,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:28,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182633531] [2022-03-17 19:07:28,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:28,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:28,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:28,269 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 19:07:28,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:28,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182633531] [2022-03-17 19:07:28,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182633531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:28,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:28,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:07:28,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881320697] [2022-03-17 19:07:28,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:28,270 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:07:28,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:28,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:07:28,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:07:28,271 INFO L87 Difference]: Start difference. First operand 488 states and 725 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:30,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:32,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:32,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:32,642 INFO L93 Difference]: Finished difference Result 595 states and 875 transitions. [2022-03-17 19:07:32,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:07:32,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-17 19:07:32,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:32,644 INFO L225 Difference]: With dead ends: 595 [2022-03-17 19:07:32,644 INFO L226 Difference]: Without dead ends: 595 [2022-03-17 19:07:32,644 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:07:32,645 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 112 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:32,645 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 390 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 19:07:32,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-03-17 19:07:32,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 523. [2022-03-17 19:07:32,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 518 states have (on average 1.4864864864864864) internal successors, (770), 518 states have internal predecessors, (770), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:32,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 774 transitions. [2022-03-17 19:07:32,651 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 774 transitions. Word has length 156 [2022-03-17 19:07:32,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:32,652 INFO L478 AbstractCegarLoop]: Abstraction has 523 states and 774 transitions. [2022-03-17 19:07:32,652 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:32,652 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 774 transitions. [2022-03-17 19:07:32,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-17 19:07:32,653 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:32,653 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:32,653 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 19:07:32,653 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:32,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:32,654 INFO L85 PathProgramCache]: Analyzing trace with hash 741405720, now seen corresponding path program 1 times [2022-03-17 19:07:32,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:32,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183007703] [2022-03-17 19:07:32,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:32,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:32,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:32,784 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 19:07:32,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:32,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183007703] [2022-03-17 19:07:32,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183007703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:32,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:32,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:07:32,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055730479] [2022-03-17 19:07:32,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:32,785 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:07:32,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:32,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:07:32,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:07:32,785 INFO L87 Difference]: Start difference. First operand 523 states and 774 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:34,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:36,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:38,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:39,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:39,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:39,801 INFO L93 Difference]: Finished difference Result 588 states and 862 transitions. [2022-03-17 19:07:39,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:07:39,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-17 19:07:39,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:39,802 INFO L225 Difference]: With dead ends: 588 [2022-03-17 19:07:39,803 INFO L226 Difference]: Without dead ends: 588 [2022-03-17 19:07:39,803 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:07:39,803 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 111 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:39,803 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 390 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-03-17 19:07:39,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-03-17 19:07:39,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 523. [2022-03-17 19:07:39,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 518 states have (on average 1.4787644787644787) internal successors, (766), 518 states have internal predecessors, (766), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:39,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 770 transitions. [2022-03-17 19:07:39,810 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 770 transitions. Word has length 157 [2022-03-17 19:07:39,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:39,810 INFO L478 AbstractCegarLoop]: Abstraction has 523 states and 770 transitions. [2022-03-17 19:07:39,811 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:39,811 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 770 transitions. [2022-03-17 19:07:39,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-17 19:07:39,812 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:39,812 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:39,812 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 19:07:39,812 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:39,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:39,813 INFO L85 PathProgramCache]: Analyzing trace with hash 2102470359, now seen corresponding path program 1 times [2022-03-17 19:07:39,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:39,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955919064] [2022-03-17 19:07:39,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:39,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:39,939 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-17 19:07:39,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:39,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955919064] [2022-03-17 19:07:39,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955919064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:39,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:39,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:07:39,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136477202] [2022-03-17 19:07:39,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:39,940 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:07:39,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:39,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:07:39,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:07:39,941 INFO L87 Difference]: Start difference. First operand 523 states and 770 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:41,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:42,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:42,394 INFO L93 Difference]: Finished difference Result 1012 states and 1488 transitions. [2022-03-17 19:07:42,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:07:42,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-17 19:07:42,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:42,397 INFO L225 Difference]: With dead ends: 1012 [2022-03-17 19:07:42,397 INFO L226 Difference]: Without dead ends: 1012 [2022-03-17 19:07:42,398 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:07:42,398 INFO L912 BasicCegarLoop]: 384 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:42,398 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 578 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 434 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 19:07:42,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2022-03-17 19:07:42,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2022-03-17 19:07:42,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1007 states have (on average 1.4736842105263157) internal successors, (1484), 1007 states have internal predecessors, (1484), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:42,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1488 transitions. [2022-03-17 19:07:42,413 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1488 transitions. Word has length 174 [2022-03-17 19:07:42,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:42,414 INFO L478 AbstractCegarLoop]: Abstraction has 1012 states and 1488 transitions. [2022-03-17 19:07:42,414 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:42,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1488 transitions. [2022-03-17 19:07:42,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-17 19:07:42,416 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:42,416 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:42,416 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 19:07:42,416 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:42,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:42,417 INFO L85 PathProgramCache]: Analyzing trace with hash 689207752, now seen corresponding path program 1 times [2022-03-17 19:07:42,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:42,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592014855] [2022-03-17 19:07:42,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:42,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:42,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:42,586 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 19:07:42,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:42,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592014855] [2022-03-17 19:07:42,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592014855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:42,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:42,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:07:42,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820206885] [2022-03-17 19:07:42,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:42,588 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:07:42,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:42,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:07:42,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:07:42,588 INFO L87 Difference]: Start difference. First operand 1012 states and 1488 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:44,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:46,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:48,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:48,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:48,569 INFO L93 Difference]: Finished difference Result 1468 states and 2157 transitions. [2022-03-17 19:07:48,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:07:48,571 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-03-17 19:07:48,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:48,575 INFO L225 Difference]: With dead ends: 1468 [2022-03-17 19:07:48,575 INFO L226 Difference]: Without dead ends: 1468 [2022-03-17 19:07:48,576 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:07:48,576 INFO L912 BasicCegarLoop]: 385 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:48,577 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 579 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 437 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 19:07:48,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2022-03-17 19:07:48,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1468. [2022-03-17 19:07:48,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1463 states have (on average 1.4716336295283663) internal successors, (2153), 1463 states have internal predecessors, (2153), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:48,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 2157 transitions. [2022-03-17 19:07:48,592 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 2157 transitions. Word has length 175 [2022-03-17 19:07:48,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:48,592 INFO L478 AbstractCegarLoop]: Abstraction has 1468 states and 2157 transitions. [2022-03-17 19:07:48,593 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:48,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 2157 transitions. [2022-03-17 19:07:48,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-03-17 19:07:48,595 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:48,595 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:48,595 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 19:07:48,595 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:48,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:48,595 INFO L85 PathProgramCache]: Analyzing trace with hash -340760717, now seen corresponding path program 1 times [2022-03-17 19:07:48,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:48,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266083658] [2022-03-17 19:07:48,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:48,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:48,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:48,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:48,728 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 19:07:48,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:48,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266083658] [2022-03-17 19:07:48,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266083658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:48,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:48,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:07:48,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985347750] [2022-03-17 19:07:48,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:48,730 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:07:48,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:48,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:07:48,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:07:48,732 INFO L87 Difference]: Start difference. First operand 1468 states and 2157 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:50,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:52,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:52,221 INFO L93 Difference]: Finished difference Result 1915 states and 2815 transitions. [2022-03-17 19:07:52,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:07:52,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-03-17 19:07:52,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:52,228 INFO L225 Difference]: With dead ends: 1915 [2022-03-17 19:07:52,228 INFO L226 Difference]: Without dead ends: 1915 [2022-03-17 19:07:52,228 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:07:52,229 INFO L912 BasicCegarLoop]: 265 mSDtfsCounter, 142 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:52,229 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 459 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-17 19:07:52,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2022-03-17 19:07:52,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1915. [2022-03-17 19:07:52,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1910 states have (on average 1.4717277486910996) internal successors, (2811), 1910 states have internal predecessors, (2811), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:52,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2815 transitions. [2022-03-17 19:07:52,277 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2815 transitions. Word has length 176 [2022-03-17 19:07:52,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:52,277 INFO L478 AbstractCegarLoop]: Abstraction has 1915 states and 2815 transitions. [2022-03-17 19:07:52,277 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:52,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2815 transitions. [2022-03-17 19:07:52,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-03-17 19:07:52,280 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:52,280 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:52,280 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 19:07:52,280 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:52,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:52,281 INFO L85 PathProgramCache]: Analyzing trace with hash 2144302994, now seen corresponding path program 1 times [2022-03-17 19:07:52,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:52,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613138237] [2022-03-17 19:07:52,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:52,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:52,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:52,391 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-03-17 19:07:52,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:52,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613138237] [2022-03-17 19:07:52,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613138237] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:52,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:52,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:07:52,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104426266] [2022-03-17 19:07:52,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:52,392 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:07:52,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:52,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:07:52,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:07:52,393 INFO L87 Difference]: Start difference. First operand 1915 states and 2815 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:54,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:56,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:56,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:56,764 INFO L93 Difference]: Finished difference Result 1942 states and 2850 transitions. [2022-03-17 19:07:56,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:07:56,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-03-17 19:07:56,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:56,769 INFO L225 Difference]: With dead ends: 1942 [2022-03-17 19:07:56,769 INFO L226 Difference]: Without dead ends: 1942 [2022-03-17 19:07:56,769 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:07:56,769 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:56,770 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 425 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 265 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 19:07:56,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1942 states. [2022-03-17 19:07:56,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1942 to 1942. [2022-03-17 19:07:56,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1942 states, 1937 states have (on average 1.469282395456892) internal successors, (2846), 1937 states have internal predecessors, (2846), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:56,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 2850 transitions. [2022-03-17 19:07:56,785 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 2850 transitions. Word has length 176 [2022-03-17 19:07:56,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:56,786 INFO L478 AbstractCegarLoop]: Abstraction has 1942 states and 2850 transitions. [2022-03-17 19:07:56,786 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:56,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 2850 transitions. [2022-03-17 19:07:56,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-03-17 19:07:56,789 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:56,789 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:56,789 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 19:07:56,789 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:56,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:56,790 INFO L85 PathProgramCache]: Analyzing trace with hash -464764367, now seen corresponding path program 1 times [2022-03-17 19:07:56,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:56,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211677154] [2022-03-17 19:07:56,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:56,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:56,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:56,894 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-17 19:07:56,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:56,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211677154] [2022-03-17 19:07:56,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211677154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:56,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:56,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:07:56,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837556334] [2022-03-17 19:07:56,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:56,895 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:07:56,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:56,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:07:56,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:07:56,896 INFO L87 Difference]: Start difference. First operand 1942 states and 2850 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:59,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:00,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:08:00,671 INFO L93 Difference]: Finished difference Result 1944 states and 2852 transitions. [2022-03-17 19:08:00,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:08:00,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-03-17 19:08:00,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:08:00,676 INFO L225 Difference]: With dead ends: 1944 [2022-03-17 19:08:00,676 INFO L226 Difference]: Without dead ends: 1944 [2022-03-17 19:08:00,676 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:08:00,676 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:08:00,677 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 404 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 251 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-03-17 19:08:00,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2022-03-17 19:08:00,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1944. [2022-03-17 19:08:00,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1939 states have (on average 1.4687983496647756) internal successors, (2848), 1939 states have internal predecessors, (2848), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:00,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2852 transitions. [2022-03-17 19:08:00,693 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2852 transitions. Word has length 176 [2022-03-17 19:08:00,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:08:00,693 INFO L478 AbstractCegarLoop]: Abstraction has 1944 states and 2852 transitions. [2022-03-17 19:08:00,693 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:00,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2852 transitions. [2022-03-17 19:08:00,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-03-17 19:08:00,696 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:08:00,697 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-03-17 19:08:00,697 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 19:08:00,697 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:08:00,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:08:00,697 INFO L85 PathProgramCache]: Analyzing trace with hash 533126362, now seen corresponding path program 1 times [2022-03-17 19:08:00,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:08:00,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575587419] [2022-03-17 19:08:00,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:08:00,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:08:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:00,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:08:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 474 proven. 106 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-03-17 19:08:00,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:08:00,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575587419] [2022-03-17 19:08:00,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575587419] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:08:00,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202629548] [2022-03-17 19:08:00,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:08:00,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:08:00,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:08:00,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:08:00,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 19:08:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:01,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 1605 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-17 19:08:01,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:08:02,251 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2022-03-17 19:08:02,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 19:08:02,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202629548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:08:02,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 19:08:02,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-03-17 19:08:02,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924498436] [2022-03-17 19:08:02,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:08:02,252 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 19:08:02,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:08:02,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 19:08:02,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-17 19:08:02,253 INFO L87 Difference]: Start difference. First operand 1944 states and 2852 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:02,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:08:02,294 INFO L93 Difference]: Finished difference Result 2439 states and 3585 transitions. [2022-03-17 19:08:02,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 19:08:02,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 299 [2022-03-17 19:08:02,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:08:02,300 INFO L225 Difference]: With dead ends: 2439 [2022-03-17 19:08:02,300 INFO L226 Difference]: Without dead ends: 2439 [2022-03-17 19:08:02,300 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-17 19:08:02,300 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:08:02,301 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 386 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 19:08:02,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2022-03-17 19:08:02,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2439. [2022-03-17 19:08:02,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2434 states have (on average 1.471240755957272) internal successors, (3581), 2434 states have internal predecessors, (3581), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:02,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3585 transitions. [2022-03-17 19:08:02,326 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3585 transitions. Word has length 299 [2022-03-17 19:08:02,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:08:02,326 INFO L478 AbstractCegarLoop]: Abstraction has 2439 states and 3585 transitions. [2022-03-17 19:08:02,326 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:02,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3585 transitions. [2022-03-17 19:08:02,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-03-17 19:08:02,331 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:08:02,332 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:08:02,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-17 19:08:02,536 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-03-17 19:08:02,537 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:08:02,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:08:02,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1869481902, now seen corresponding path program 1 times [2022-03-17 19:08:02,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:08:02,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271310644] [2022-03-17 19:08:02,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:08:02,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:08:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:02,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:08:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:02,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 1019 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2022-03-17 19:08:02,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:08:02,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271310644] [2022-03-17 19:08:02,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271310644] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:08:02,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:08:02,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:08:02,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775740248] [2022-03-17 19:08:02,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:08:02,795 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:08:02,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:08:02,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:08:02,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:08:02,797 INFO L87 Difference]: Start difference. First operand 2439 states and 3585 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:04,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:06,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:08,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:09,241 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 [] [2022-03-17 19:08:09,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:08:09,663 INFO L93 Difference]: Finished difference Result 2749 states and 4004 transitions. [2022-03-17 19:08:09,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:08:09,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 426 [2022-03-17 19:08:09,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:08:09,671 INFO L225 Difference]: With dead ends: 2749 [2022-03-17 19:08:09,671 INFO L226 Difference]: Without dead ends: 2749 [2022-03-17 19:08:09,672 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:08:09,672 INFO L912 BasicCegarLoop]: 253 mSDtfsCounter, 37 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:08:09,672 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 627 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 19:08:09,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2022-03-17 19:08:09,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 2648. [2022-03-17 19:08:09,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2648 states, 2643 states have (on average 1.4661369655694287) internal successors, (3875), 2643 states have internal predecessors, (3875), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:09,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 3879 transitions. [2022-03-17 19:08:09,696 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 3879 transitions. Word has length 426 [2022-03-17 19:08:09,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:08:09,696 INFO L478 AbstractCegarLoop]: Abstraction has 2648 states and 3879 transitions. [2022-03-17 19:08:09,696 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:09,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 3879 transitions. [2022-03-17 19:08:09,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-03-17 19:08:09,701 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:08:09,702 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:08:09,702 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 19:08:09,702 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:08:09,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:08:09,702 INFO L85 PathProgramCache]: Analyzing trace with hash 190440595, now seen corresponding path program 1 times [2022-03-17 19:08:09,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:08:09,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592521288] [2022-03-17 19:08:09,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:08:09,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:08:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:09,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:08:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:09,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 750 proven. 0 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2022-03-17 19:08:09,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:08:09,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592521288] [2022-03-17 19:08:09,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592521288] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:08:09,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:08:09,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:08:09,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680925719] [2022-03-17 19:08:09,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:08:09,968 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:08:09,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:08:09,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:08:09,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:08:09,969 INFO L87 Difference]: Start difference. First operand 2648 states and 3879 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:11,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:13,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:15,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:15,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:08:15,432 INFO L93 Difference]: Finished difference Result 3185 states and 4672 transitions. [2022-03-17 19:08:15,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:08:15,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 426 [2022-03-17 19:08:15,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:08:15,438 INFO L225 Difference]: With dead ends: 3185 [2022-03-17 19:08:15,438 INFO L226 Difference]: Without dead ends: 3185 [2022-03-17 19:08:15,439 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:08:15,439 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 138 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 21 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:08:15,439 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 382 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 264 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 19:08:15,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states. [2022-03-17 19:08:15,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 3185. [2022-03-17 19:08:15,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3185 states, 3180 states have (on average 1.4679245283018867) internal successors, (4668), 3180 states have internal predecessors, (4668), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:15,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3185 states to 3185 states and 4672 transitions. [2022-03-17 19:08:15,473 INFO L78 Accepts]: Start accepts. Automaton has 3185 states and 4672 transitions. Word has length 426 [2022-03-17 19:08:15,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:08:15,473 INFO L478 AbstractCegarLoop]: Abstraction has 3185 states and 4672 transitions. [2022-03-17 19:08:15,474 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:15,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3185 states and 4672 transitions. [2022-03-17 19:08:15,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-03-17 19:08:15,479 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:08:15,479 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:08:15,480 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 19:08:15,480 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:08:15,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:08:15,480 INFO L85 PathProgramCache]: Analyzing trace with hash 323931843, now seen corresponding path program 1 times [2022-03-17 19:08:15,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:08:15,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846224585] [2022-03-17 19:08:15,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:08:15,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:08:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:15,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:08:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:15,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2022-03-17 19:08:15,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:08:15,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846224585] [2022-03-17 19:08:15,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846224585] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:08:15,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:08:15,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:08:15,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127767253] [2022-03-17 19:08:15,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:08:15,714 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:08:15,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:08:15,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:08:15,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:08:15,715 INFO L87 Difference]: Start difference. First operand 3185 states and 4672 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:17,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:18,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:19,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:08:19,664 INFO L93 Difference]: Finished difference Result 3717 states and 5450 transitions. [2022-03-17 19:08:19,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:08:19,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 427 [2022-03-17 19:08:19,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:08:19,673 INFO L225 Difference]: With dead ends: 3717 [2022-03-17 19:08:19,673 INFO L226 Difference]: Without dead ends: 3717 [2022-03-17 19:08:19,674 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:08:19,674 INFO L912 BasicCegarLoop]: 390 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:08:19,674 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 584 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-17 19:08:19,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2022-03-17 19:08:19,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3717. [2022-03-17 19:08:19,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3717 states, 3712 states have (on average 1.4671336206896552) internal successors, (5446), 3712 states have internal predecessors, (5446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:19,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 5450 transitions. [2022-03-17 19:08:19,730 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 5450 transitions. Word has length 427 [2022-03-17 19:08:19,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:08:19,731 INFO L478 AbstractCegarLoop]: Abstraction has 3717 states and 5450 transitions. [2022-03-17 19:08:19,731 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:19,731 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 5450 transitions. [2022-03-17 19:08:19,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-03-17 19:08:19,738 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:08:19,738 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:08:19,738 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 19:08:19,738 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:08:19,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:08:19,739 INFO L85 PathProgramCache]: Analyzing trace with hash -71724402, now seen corresponding path program 1 times [2022-03-17 19:08:19,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:08:19,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381013719] [2022-03-17 19:08:19,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:08:19,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:08:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:19,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:08:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:19,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 600 proven. 0 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2022-03-17 19:08:19,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:08:19,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381013719] [2022-03-17 19:08:19,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381013719] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:08:19,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:08:19,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:08:19,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793953695] [2022-03-17 19:08:19,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:08:19,980 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:08:19,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:08:19,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:08:19,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:08:19,981 INFO L87 Difference]: Start difference. First operand 3717 states and 5450 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:23,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:23,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:08:23,706 INFO L93 Difference]: Finished difference Result 4217 states and 6180 transitions. [2022-03-17 19:08:23,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:08:23,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-03-17 19:08:23,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:08:23,712 INFO L225 Difference]: With dead ends: 4217 [2022-03-17 19:08:23,713 INFO L226 Difference]: Without dead ends: 4217 [2022-03-17 19:08:23,713 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:08:23,713 INFO L912 BasicCegarLoop]: 390 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:08:23,713 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 584 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-03-17 19:08:23,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4217 states. [2022-03-17 19:08:23,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4217 to 4217. [2022-03-17 19:08:23,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4217 states, 4212 states have (on average 1.466286799620133) internal successors, (6176), 4212 states have internal predecessors, (6176), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:23,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4217 states to 4217 states and 6180 transitions. [2022-03-17 19:08:23,764 INFO L78 Accepts]: Start accepts. Automaton has 4217 states and 6180 transitions. Word has length 428 [2022-03-17 19:08:23,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:08:23,765 INFO L478 AbstractCegarLoop]: Abstraction has 4217 states and 6180 transitions. [2022-03-17 19:08:23,765 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:23,765 INFO L276 IsEmpty]: Start isEmpty. Operand 4217 states and 6180 transitions. [2022-03-17 19:08:23,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-03-17 19:08:23,773 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:08:23,774 INFO L500 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:08:23,774 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 19:08:23,774 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:08:23,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:08:23,775 INFO L85 PathProgramCache]: Analyzing trace with hash -2121350020, now seen corresponding path program 1 times [2022-03-17 19:08:23,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:08:23,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037397180] [2022-03-17 19:08:23,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:08:23,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:08:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:24,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:08:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:24,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 1131 proven. 0 refuted. 0 times theorem prover too weak. 1642 trivial. 0 not checked. [2022-03-17 19:08:24,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:08:24,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037397180] [2022-03-17 19:08:24,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037397180] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:08:24,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:08:24,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:08:24,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390345495] [2022-03-17 19:08:24,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:08:24,108 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:08:24,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:08:24,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:08:24,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:08:24,108 INFO L87 Difference]: Start difference. First operand 4217 states and 6180 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:25,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:27,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:29,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:30,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:08:30,188 INFO L93 Difference]: Finished difference Result 4378 states and 6371 transitions. [2022-03-17 19:08:30,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:08:30,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 555 [2022-03-17 19:08:30,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:08:30,195 INFO L225 Difference]: With dead ends: 4378 [2022-03-17 19:08:30,195 INFO L226 Difference]: Without dead ends: 4378 [2022-03-17 19:08:30,196 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:08:30,196 INFO L912 BasicCegarLoop]: 252 mSDtfsCounter, 51 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:08:30,196 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 625 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 518 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 19:08:30,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4378 states. [2022-03-17 19:08:30,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4378 to 4217. [2022-03-17 19:08:30,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4217 states, 4212 states have (on average 1.4643874643874644) internal successors, (6168), 4212 states have internal predecessors, (6168), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:30,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4217 states to 4217 states and 6172 transitions. [2022-03-17 19:08:30,269 INFO L78 Accepts]: Start accepts. Automaton has 4217 states and 6172 transitions. Word has length 555 [2022-03-17 19:08:30,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:08:30,270 INFO L478 AbstractCegarLoop]: Abstraction has 4217 states and 6172 transitions. [2022-03-17 19:08:30,270 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:30,270 INFO L276 IsEmpty]: Start isEmpty. Operand 4217 states and 6172 transitions. [2022-03-17 19:08:30,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-03-17 19:08:30,278 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:08:30,278 INFO L500 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:08:30,278 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 19:08:30,279 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:08:30,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:08:30,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1699591293, now seen corresponding path program 1 times [2022-03-17 19:08:30,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:08:30,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680917771] [2022-03-17 19:08:30,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:08:30,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:08:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:30,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:08:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:30,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 1138 proven. 189 refuted. 0 times theorem prover too weak. 1446 trivial. 0 not checked. [2022-03-17 19:08:30,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:08:30,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680917771] [2022-03-17 19:08:30,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680917771] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:08:30,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296458679] [2022-03-17 19:08:30,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:08:30,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:08:30,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:08:30,673 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:08:30,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-17 19:08:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:31,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 2557 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-17 19:08:31,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:08:32,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 1072 proven. 0 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked. [2022-03-17 19:08:32,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 19:08:32,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296458679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:08:32,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 19:08:32,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-03-17 19:08:32,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290279147] [2022-03-17 19:08:32,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:08:32,519 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 19:08:32,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:08:32,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 19:08:32,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-17 19:08:32,519 INFO L87 Difference]: Start difference. First operand 4217 states and 6172 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:32,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:08:32,564 INFO L93 Difference]: Finished difference Result 4754 states and 6967 transitions. [2022-03-17 19:08:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 19:08:32,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 555 [2022-03-17 19:08:32,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:08:32,572 INFO L225 Difference]: With dead ends: 4754 [2022-03-17 19:08:32,573 INFO L226 Difference]: Without dead ends: 4754 [2022-03-17 19:08:32,573 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-17 19:08:32,573 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 138 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:08:32,574 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 382 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 19:08:32,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4754 states. [2022-03-17 19:08:32,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4754 to 4754. [2022-03-17 19:08:32,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4754 states, 4749 states have (on average 1.4662034112444726) internal successors, (6963), 4749 states have internal predecessors, (6963), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:32,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4754 states to 4754 states and 6967 transitions. [2022-03-17 19:08:32,624 INFO L78 Accepts]: Start accepts. Automaton has 4754 states and 6967 transitions. Word has length 555 [2022-03-17 19:08:32,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:08:32,624 INFO L478 AbstractCegarLoop]: Abstraction has 4754 states and 6967 transitions. [2022-03-17 19:08:32,625 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:32,625 INFO L276 IsEmpty]: Start isEmpty. Operand 4754 states and 6967 transitions. [2022-03-17 19:08:32,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-03-17 19:08:32,633 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:08:32,634 INFO L500 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:08:32,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-17 19:08:32,847 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,SelfDestructingSolverStorable45 [2022-03-17 19:08:32,847 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:08:32,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:08:32,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1694333736, now seen corresponding path program 1 times [2022-03-17 19:08:32,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:08:32,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039550145] [2022-03-17 19:08:32,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:08:32,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:08:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:33,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:08:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:33,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 823 proven. 0 refuted. 0 times theorem prover too weak. 1929 trivial. 0 not checked. [2022-03-17 19:08:33,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:08:33,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039550145] [2022-03-17 19:08:33,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039550145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:08:33,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:08:33,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:08:33,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477410656] [2022-03-17 19:08:33,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:08:33,264 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:08:33,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:08:33,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:08:33,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:08:33,265 INFO L87 Difference]: Start difference. First operand 4754 states and 6967 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:35,988 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 [] [2022-03-17 19:08:36,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:08:36,474 INFO L93 Difference]: Finished difference Result 5255 states and 7697 transitions. [2022-03-17 19:08:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:08:36,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 558 [2022-03-17 19:08:36,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:08:36,485 INFO L225 Difference]: With dead ends: 5255 [2022-03-17 19:08:36,485 INFO L226 Difference]: Without dead ends: 5255 [2022-03-17 19:08:36,486 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:08:36,486 INFO L912 BasicCegarLoop]: 390 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:08:36,486 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 584 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 19:08:36,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5255 states. [2022-03-17 19:08:36,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5255 to 5255. [2022-03-17 19:08:36,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5250 states have (on average 1.4653333333333334) internal successors, (7693), 5250 states have internal predecessors, (7693), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:36,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 7697 transitions. [2022-03-17 19:08:36,565 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 7697 transitions. Word has length 558 [2022-03-17 19:08:36,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:08:36,566 INFO L478 AbstractCegarLoop]: Abstraction has 5255 states and 7697 transitions. [2022-03-17 19:08:36,566 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:36,566 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 7697 transitions. [2022-03-17 19:08:36,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-03-17 19:08:36,591 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:08:36,592 INFO L500 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:08:36,592 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 19:08:36,592 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:08:36,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:08:36,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1575939639, now seen corresponding path program 1 times [2022-03-17 19:08:36,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:08:36,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238646362] [2022-03-17 19:08:36,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:08:36,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:08:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:37,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:08:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:37,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1601 proven. 119 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2022-03-17 19:08:37,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:08:37,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238646362] [2022-03-17 19:08:37,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238646362] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:08:37,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776084140] [2022-03-17 19:08:37,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:08:37,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:08:37,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:08:37,288 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:08:37,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-17 19:08:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:38,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 2515 conjuncts, 37 conjunts are in the unsatisfiable core [2022-03-17 19:08:38,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:08:38,477 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:08:38,479 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 19:08:38,608 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 19:08:38,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-17 19:08:38,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 19:08:39,054 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 19:08:39,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-17 19:08:39,099 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-17 19:08:39,151 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-03-17 19:08:39,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-03-17 19:08:39,225 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 19:08:39,225 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 36 [2022-03-17 19:08:39,475 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 19:08:39,475 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-17 19:08:39,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1394 proven. 201 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2022-03-17 19:08:39,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:08:40,061 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 53 [2022-03-17 19:08:40,065 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-03-17 19:08:43,280 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 190 treesize of output 172 [2022-03-17 19:08:43,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1392 proven. 0 refuted. 0 times theorem prover too weak. 1360 trivial. 0 not checked. [2022-03-17 19:08:43,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776084140] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 19:08:43,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 19:08:43,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14, 13] total 22 [2022-03-17 19:08:43,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564190917] [2022-03-17 19:08:43,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:08:43,677 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 19:08:43,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:08:43,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 19:08:43,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=399, Unknown=1, NotChecked=0, Total=462 [2022-03-17 19:08:43,678 INFO L87 Difference]: Start difference. First operand 5255 states and 7697 transitions. Second operand has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:45,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:47,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:55,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:08:55,972 INFO L93 Difference]: Finished difference Result 8224 states and 11996 transitions. [2022-03-17 19:08:55,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 19:08:55,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 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 558 [2022-03-17 19:08:55,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:08:55,984 INFO L225 Difference]: With dead ends: 8224 [2022-03-17 19:08:55,985 INFO L226 Difference]: Without dead ends: 8224 [2022-03-17 19:08:55,985 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1138 GetRequests, 1114 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=91, Invalid=556, Unknown=3, NotChecked=0, Total=650 [2022-03-17 19:08:55,985 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 424 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 119 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 260 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:08:55,986 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 940 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 522 Invalid, 1 Unknown, 260 Unchecked, 4.4s Time] [2022-03-17 19:08:55,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8224 states. [2022-03-17 19:08:56,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8224 to 7107. [2022-03-17 19:08:56,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7107 states, 7102 states have (on average 1.4760630808223036) internal successors, (10483), 7102 states have internal predecessors, (10483), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:56,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7107 states to 7107 states and 10487 transitions. [2022-03-17 19:08:56,080 INFO L78 Accepts]: Start accepts. Automaton has 7107 states and 10487 transitions. Word has length 558 [2022-03-17 19:08:56,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:08:56,081 INFO L478 AbstractCegarLoop]: Abstraction has 7107 states and 10487 transitions. [2022-03-17 19:08:56,081 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:56,081 INFO L276 IsEmpty]: Start isEmpty. Operand 7107 states and 10487 transitions. [2022-03-17 19:08:56,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2022-03-17 19:08:56,093 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:08:56,093 INFO L500 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:08:56,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-17 19:08:56,307 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:08:56,307 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:08:56,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:08:56,308 INFO L85 PathProgramCache]: Analyzing trace with hash -793315798, now seen corresponding path program 1 times [2022-03-17 19:08:56,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:08:56,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577721985] [2022-03-17 19:08:56,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:08:56,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:08:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:56,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:08:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:56,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2790 backedges. 1461 proven. 0 refuted. 0 times theorem prover too weak. 1329 trivial. 0 not checked. [2022-03-17 19:08:56,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:08:56,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577721985] [2022-03-17 19:08:56,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577721985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:08:56,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:08:56,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:08:56,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188301939] [2022-03-17 19:08:56,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:08:56,648 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:08:56,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:08:56,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:08:56,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:08:56,649 INFO L87 Difference]: Start difference. First operand 7107 states and 10487 transitions. Second operand has 5 states, 5 states have (on average 37.2) internal successors, (186), 4 states have internal predecessors, (186), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:08:57,840 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:59,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:01,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:02,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:09:02,654 INFO L93 Difference]: Finished difference Result 7369 states and 10795 transitions. [2022-03-17 19:09:02,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:09:02,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 4 states have internal predecessors, (186), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 561 [2022-03-17 19:09:02,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:09:02,661 INFO L225 Difference]: With dead ends: 7369 [2022-03-17 19:09:02,662 INFO L226 Difference]: Without dead ends: 7369 [2022-03-17 19:09:02,662 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:09:02,662 INFO L912 BasicCegarLoop]: 251 mSDtfsCounter, 48 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:09:02,662 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 623 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 19:09:02,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7369 states. [2022-03-17 19:09:02,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7369 to 7107. [2022-03-17 19:09:02,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7107 states, 7102 states have (on average 1.4739509997183893) internal successors, (10468), 7102 states have internal predecessors, (10468), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:02,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7107 states to 7107 states and 10472 transitions. [2022-03-17 19:09:02,746 INFO L78 Accepts]: Start accepts. Automaton has 7107 states and 10472 transitions. Word has length 561 [2022-03-17 19:09:02,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:09:02,746 INFO L478 AbstractCegarLoop]: Abstraction has 7107 states and 10472 transitions. [2022-03-17 19:09:02,746 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 4 states have internal predecessors, (186), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:02,746 INFO L276 IsEmpty]: Start isEmpty. Operand 7107 states and 10472 transitions. [2022-03-17 19:09:02,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2022-03-17 19:09:02,809 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:09:02,809 INFO L500 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:09:02,809 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 19:09:02,809 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:09:02,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:09:02,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1432119467, now seen corresponding path program 1 times [2022-03-17 19:09:02,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:09:02,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993777140] [2022-03-17 19:09:02,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:09:02,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:09:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:03,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:09:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:03,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2767 backedges. 1532 proven. 0 refuted. 0 times theorem prover too weak. 1235 trivial. 0 not checked. [2022-03-17 19:09:03,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:09:03,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993777140] [2022-03-17 19:09:03,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993777140] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:09:03,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:09:03,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:09:03,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390909125] [2022-03-17 19:09:03,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:09:03,082 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:09:03,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:09:03,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:09:03,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:09:03,083 INFO L87 Difference]: Start difference. First operand 7107 states and 10472 transitions. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:04,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:06,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:08,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:09,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:10,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:09:10,221 INFO L93 Difference]: Finished difference Result 7359 states and 10775 transitions. [2022-03-17 19:09:10,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:09:10,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 561 [2022-03-17 19:09:10,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:09:10,233 INFO L225 Difference]: With dead ends: 7359 [2022-03-17 19:09:10,233 INFO L226 Difference]: Without dead ends: 7279 [2022-03-17 19:09:10,233 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:09:10,233 INFO L912 BasicCegarLoop]: 250 mSDtfsCounter, 33 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:09:10,233 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 621 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 500 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-17 19:09:10,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7279 states. [2022-03-17 19:09:10,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7279 to 7037. [2022-03-17 19:09:10,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7037 states, 7032 states have (on average 1.4765358361774743) internal successors, (10383), 7032 states have internal predecessors, (10383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:10,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7037 states to 7037 states and 10387 transitions. [2022-03-17 19:09:10,311 INFO L78 Accepts]: Start accepts. Automaton has 7037 states and 10387 transitions. Word has length 561 [2022-03-17 19:09:10,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:09:10,312 INFO L478 AbstractCegarLoop]: Abstraction has 7037 states and 10387 transitions. [2022-03-17 19:09:10,312 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:10,312 INFO L276 IsEmpty]: Start isEmpty. Operand 7037 states and 10387 transitions. [2022-03-17 19:09:10,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2022-03-17 19:09:10,323 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:09:10,323 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:09:10,324 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-17 19:09:10,324 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:09:10,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:09:10,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1234805621, now seen corresponding path program 1 times [2022-03-17 19:09:10,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:09:10,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617064512] [2022-03-17 19:09:10,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:09:10,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:09:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:10,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:09:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:10,645 INFO L134 CoverageAnalysis]: Checked inductivity of 3305 backedges. 1748 proven. 81 refuted. 0 times theorem prover too weak. 1476 trivial. 0 not checked. [2022-03-17 19:09:10,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:09:10,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617064512] [2022-03-17 19:09:10,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617064512] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:09:10,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597660351] [2022-03-17 19:09:10,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:09:10,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:09:10,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:09:10,648 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:09:10,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-17 19:09:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:12,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 2724 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-17 19:09:12,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:09:12,864 INFO L134 CoverageAnalysis]: Checked inductivity of 3305 backedges. 2255 proven. 0 refuted. 0 times theorem prover too weak. 1050 trivial. 0 not checked. [2022-03-17 19:09:12,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 19:09:12,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597660351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:09:12,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 19:09:12,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-03-17 19:09:12,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587011143] [2022-03-17 19:09:12,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:09:12,865 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 19:09:12,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:09:12,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 19:09:12,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-17 19:09:12,866 INFO L87 Difference]: Start difference. First operand 7037 states and 10387 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:12,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:09:12,939 INFO L93 Difference]: Finished difference Result 7928 states and 11710 transitions. [2022-03-17 19:09:12,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 19:09:12,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 603 [2022-03-17 19:09:12,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:09:12,952 INFO L225 Difference]: With dead ends: 7928 [2022-03-17 19:09:12,952 INFO L226 Difference]: Without dead ends: 7928 [2022-03-17 19:09:12,952 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-17 19:09:12,953 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 134 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:09:12,953 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 388 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-17 19:09:12,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7928 states. [2022-03-17 19:09:13,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7928 to 7928. [2022-03-17 19:09:13,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7928 states, 7923 states have (on average 1.4774706550549035) internal successors, (11706), 7923 states have internal predecessors, (11706), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:13,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7928 states to 7928 states and 11710 transitions. [2022-03-17 19:09:13,031 INFO L78 Accepts]: Start accepts. Automaton has 7928 states and 11710 transitions. Word has length 603 [2022-03-17 19:09:13,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:09:13,032 INFO L478 AbstractCegarLoop]: Abstraction has 7928 states and 11710 transitions. [2022-03-17 19:09:13,032 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:13,032 INFO L276 IsEmpty]: Start isEmpty. Operand 7928 states and 11710 transitions. [2022-03-17 19:09:13,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2022-03-17 19:09:13,043 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:09:13,043 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:09:13,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-17 19:09:13,255 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:09:13,255 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:09:13,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:09:13,256 INFO L85 PathProgramCache]: Analyzing trace with hash 829998474, now seen corresponding path program 1 times [2022-03-17 19:09:13,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:09:13,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434818570] [2022-03-17 19:09:13,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:09:13,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:09:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:13,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:09:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:13,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3529 backedges. 1681 proven. 0 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-03-17 19:09:13,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:09:13,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434818570] [2022-03-17 19:09:13,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434818570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:09:13,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:09:13,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:09:13,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147286120] [2022-03-17 19:09:13,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:09:13,561 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:09:13,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:09:13,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:09:13,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:09:13,562 INFO L87 Difference]: Start difference. First operand 7928 states and 11710 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:15,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:17,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:18,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:19,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:20,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:09:20,264 INFO L93 Difference]: Finished difference Result 8202 states and 12038 transitions. [2022-03-17 19:09:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:09:20,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 624 [2022-03-17 19:09:20,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:09:20,277 INFO L225 Difference]: With dead ends: 8202 [2022-03-17 19:09:20,278 INFO L226 Difference]: Without dead ends: 8202 [2022-03-17 19:09:20,278 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:09:20,278 INFO L912 BasicCegarLoop]: 249 mSDtfsCounter, 43 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:09:20,278 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 619 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-03-17 19:09:20,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8202 states. [2022-03-17 19:09:20,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8202 to 7928. [2022-03-17 19:09:20,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7928 states, 7923 states have (on average 1.4753250031553704) internal successors, (11689), 7923 states have internal predecessors, (11689), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:20,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7928 states to 7928 states and 11693 transitions. [2022-03-17 19:09:20,390 INFO L78 Accepts]: Start accepts. Automaton has 7928 states and 11693 transitions. Word has length 624 [2022-03-17 19:09:20,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:09:20,391 INFO L478 AbstractCegarLoop]: Abstraction has 7928 states and 11693 transitions. [2022-03-17 19:09:20,391 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:20,391 INFO L276 IsEmpty]: Start isEmpty. Operand 7928 states and 11693 transitions. [2022-03-17 19:09:20,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2022-03-17 19:09:20,400 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:09:20,401 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 19:09:20,401 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-17 19:09:20,401 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:09:20,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:09:20,401 INFO L85 PathProgramCache]: Analyzing trace with hash 241649034, now seen corresponding path program 1 times [2022-03-17 19:09:20,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:09:20,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329420709] [2022-03-17 19:09:20,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:09:20,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:09:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:20,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:09:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:20,730 INFO L134 CoverageAnalysis]: Checked inductivity of 3586 backedges. 1931 proven. 46 refuted. 0 times theorem prover too weak. 1609 trivial. 0 not checked. [2022-03-17 19:09:20,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:09:20,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329420709] [2022-03-17 19:09:20,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329420709] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:09:20,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798604235] [2022-03-17 19:09:20,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:09:20,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:09:20,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:09:20,736 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:09:20,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-17 19:09:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:22,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 2782 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-17 19:09:22,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:09:22,068 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:09:22,068 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 19:09:22,115 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 19:09:22,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 19:09:22,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 19:09:22,352 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:09:22,353 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 19:09:22,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 19:09:22,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3586 backedges. 1926 proven. 126 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2022-03-17 19:09:22,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:09:23,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3586 backedges. 1947 proven. 0 refuted. 0 times theorem prover too weak. 1639 trivial. 0 not checked. [2022-03-17 19:09:23,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798604235] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 19:09:23,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 19:09:23,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-03-17 19:09:23,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328717170] [2022-03-17 19:09:23,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:09:23,638 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:09:23,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:09:23,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:09:23,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-17 19:09:23,639 INFO L87 Difference]: Start difference. First operand 7928 states and 11693 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:24,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:09:24,162 INFO L93 Difference]: Finished difference Result 9599 states and 13996 transitions. [2022-03-17 19:09:24,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:09:24,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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 624 [2022-03-17 19:09:24,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:09:24,178 INFO L225 Difference]: With dead ends: 9599 [2022-03-17 19:09:24,178 INFO L226 Difference]: Without dead ends: 9599 [2022-03-17 19:09:24,178 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1258 GetRequests, 1248 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-17 19:09:24,179 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 105 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:09:24,179 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 538 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-17 19:09:24,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9599 states. [2022-03-17 19:09:24,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9599 to 8600. [2022-03-17 19:09:24,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8600 states, 8595 states have (on average 1.4706224549156486) internal successors, (12640), 8595 states have internal predecessors, (12640), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:24,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8600 states to 8600 states and 12644 transitions. [2022-03-17 19:09:24,270 INFO L78 Accepts]: Start accepts. Automaton has 8600 states and 12644 transitions. Word has length 624 [2022-03-17 19:09:24,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:09:24,270 INFO L478 AbstractCegarLoop]: Abstraction has 8600 states and 12644 transitions. [2022-03-17 19:09:24,270 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:24,270 INFO L276 IsEmpty]: Start isEmpty. Operand 8600 states and 12644 transitions. [2022-03-17 19:09:24,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2022-03-17 19:09:24,282 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:09:24,283 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:09:24,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-17 19:09:24,511 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:09:24,511 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:09:24,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:09:24,512 INFO L85 PathProgramCache]: Analyzing trace with hash 253724586, now seen corresponding path program 1 times [2022-03-17 19:09:24,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:09:24,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250258209] [2022-03-17 19:09:24,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:09:24,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:09:24,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:24,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:09:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:24,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3568 backedges. 1701 proven. 0 refuted. 0 times theorem prover too weak. 1867 trivial. 0 not checked. [2022-03-17 19:09:24,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:09:24,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250258209] [2022-03-17 19:09:24,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250258209] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:09:24,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:09:24,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:09:24,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334551881] [2022-03-17 19:09:24,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:09:24,779 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:09:24,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:09:24,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:09:24,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:09:24,779 INFO L87 Difference]: Start difference. First operand 8600 states and 12644 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:27,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:28,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:30,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:31,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:09:31,009 INFO L93 Difference]: Finished difference Result 8806 states and 12877 transitions. [2022-03-17 19:09:31,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:09:31,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 627 [2022-03-17 19:09:31,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:09:31,022 INFO L225 Difference]: With dead ends: 8806 [2022-03-17 19:09:31,023 INFO L226 Difference]: Without dead ends: 8806 [2022-03-17 19:09:31,023 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:09:31,023 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 37 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:09:31,023 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 611 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 460 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 19:09:31,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8806 states. [2022-03-17 19:09:31,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8806 to 8600. [2022-03-17 19:09:31,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8600 states, 8595 states have (on average 1.4686445607911576) internal successors, (12623), 8595 states have internal predecessors, (12623), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:31,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8600 states to 8600 states and 12627 transitions. [2022-03-17 19:09:31,111 INFO L78 Accepts]: Start accepts. Automaton has 8600 states and 12627 transitions. Word has length 627 [2022-03-17 19:09:31,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:09:31,112 INFO L478 AbstractCegarLoop]: Abstraction has 8600 states and 12627 transitions. [2022-03-17 19:09:31,112 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:31,112 INFO L276 IsEmpty]: Start isEmpty. Operand 8600 states and 12627 transitions. [2022-03-17 19:09:31,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2022-03-17 19:09:31,123 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:09:31,123 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:09:31,124 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-17 19:09:31,124 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:09:31,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:09:31,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1484021239, now seen corresponding path program 1 times [2022-03-17 19:09:31,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:09:31,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741408479] [2022-03-17 19:09:31,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:09:31,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:09:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:31,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:09:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:31,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3601 backedges. 1836 proven. 0 refuted. 0 times theorem prover too weak. 1765 trivial. 0 not checked. [2022-03-17 19:09:31,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:09:31,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741408479] [2022-03-17 19:09:31,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741408479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:09:31,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:09:31,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:09:31,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375205758] [2022-03-17 19:09:31,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:09:31,391 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:09:31,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:09:31,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:09:31,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:09:31,392 INFO L87 Difference]: Start difference. First operand 8600 states and 12627 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:34,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:35,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:36,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:37,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:09:37,190 INFO L93 Difference]: Finished difference Result 9282 states and 13601 transitions. [2022-03-17 19:09:37,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:09:37,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 627 [2022-03-17 19:09:37,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:09:37,200 INFO L225 Difference]: With dead ends: 9282 [2022-03-17 19:09:37,201 INFO L226 Difference]: Without dead ends: 9282 [2022-03-17 19:09:37,201 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:09:37,201 INFO L912 BasicCegarLoop]: 246 mSDtfsCounter, 29 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:09:37,201 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 613 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 19:09:37,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9282 states. [2022-03-17 19:09:37,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9282 to 9042. [2022-03-17 19:09:37,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9042 states, 9037 states have (on average 1.4701781564678544) internal successors, (13286), 9037 states have internal predecessors, (13286), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:37,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9042 states to 9042 states and 13290 transitions. [2022-03-17 19:09:37,291 INFO L78 Accepts]: Start accepts. Automaton has 9042 states and 13290 transitions. Word has length 627 [2022-03-17 19:09:37,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:09:37,291 INFO L478 AbstractCegarLoop]: Abstraction has 9042 states and 13290 transitions. [2022-03-17 19:09:37,291 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:37,291 INFO L276 IsEmpty]: Start isEmpty. Operand 9042 states and 13290 transitions. [2022-03-17 19:09:37,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-03-17 19:09:37,303 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:09:37,303 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 19:09:37,303 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-17 19:09:37,304 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:09:37,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:09:37,304 INFO L85 PathProgramCache]: Analyzing trace with hash 269092640, now seen corresponding path program 1 times [2022-03-17 19:09:37,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:09:37,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786905653] [2022-03-17 19:09:37,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:09:37,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:09:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:37,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:09:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:37,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 2111 proven. 95 refuted. 0 times theorem prover too weak. 1689 trivial. 0 not checked. [2022-03-17 19:09:37,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:09:37,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786905653] [2022-03-17 19:09:37,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786905653] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:09:37,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104268286] [2022-03-17 19:09:37,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:09:37,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:09:37,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:09:37,792 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:09:37,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-17 19:09:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:09:39,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 2791 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-17 19:09:39,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:09:39,208 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:09:39,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 19:09:39,252 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 19:09:39,252 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 19:09:39,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-17 19:09:39,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-17 19:09:39,353 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-17 19:09:39,366 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-17 19:09:39,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-03-17 19:09:39,418 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-17 19:09:39,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 45 [2022-03-17 19:09:39,485 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:09:39,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-03-17 19:09:41,596 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 19:09:41,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-17 19:09:42,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1914 proven. 68 refuted. 0 times theorem prover too weak. 1913 trivial. 0 not checked. [2022-03-17 19:09:42,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:09:42,999 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-17 19:09:43,004 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-17 19:09:43,961 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 74 treesize of output 72 [2022-03-17 19:09:43,965 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 74 treesize of output 70 [2022-03-17 19:09:43,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 80 treesize of output 64 [2022-03-17 19:09:44,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1937 proven. 27 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2022-03-17 19:09:44,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104268286] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 19:09:44,115 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 19:09:44,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 7] total 13 [2022-03-17 19:09:44,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564836242] [2022-03-17 19:09:44,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 19:09:44,116 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-17 19:09:44,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:09:44,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-17 19:09:44,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=116, Unknown=1, NotChecked=0, Total=156 [2022-03-17 19:09:44,117 INFO L87 Difference]: Start difference. First operand 9042 states and 13290 transitions. Second operand has 13 states, 13 states have (on average 19.46153846153846) internal successors, (253), 12 states have internal predecessors, (253), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:09:45,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:46,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:49,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:51,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:09:53,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:10:03,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:10:03,496 INFO L93 Difference]: Finished difference Result 18129 states and 26319 transitions. [2022-03-17 19:10:03,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-17 19:10:03,496 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 19.46153846153846) internal successors, (253), 12 states have internal predecessors, (253), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 645 [2022-03-17 19:10:03,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:10:03,518 INFO L225 Difference]: With dead ends: 18129 [2022-03-17 19:10:03,518 INFO L226 Difference]: Without dead ends: 18129 [2022-03-17 19:10:03,519 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1322 GetRequests, 1296 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=192, Invalid=559, Unknown=5, NotChecked=0, Total=756 [2022-03-17 19:10:03,519 INFO L912 BasicCegarLoop]: 350 mSDtfsCounter, 791 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 221 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 493 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:10:03,519 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [791 Valid, 2039 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 2165 Invalid, 3 Unknown, 493 Unchecked, 11.1s Time] [2022-03-17 19:10:03,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18129 states. [2022-03-17 19:10:03,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18129 to 9984. [2022-03-17 19:10:03,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9984 states, 9979 states have (on average 1.4702876039683335) internal successors, (14672), 9979 states have internal predecessors, (14672), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:10:03,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9984 states to 9984 states and 14676 transitions. [2022-03-17 19:10:03,757 INFO L78 Accepts]: Start accepts. Automaton has 9984 states and 14676 transitions. Word has length 645 [2022-03-17 19:10:03,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:10:03,757 INFO L478 AbstractCegarLoop]: Abstraction has 9984 states and 14676 transitions. [2022-03-17 19:10:03,757 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 19.46153846153846) internal successors, (253), 12 states have internal predecessors, (253), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:10:03,757 INFO L276 IsEmpty]: Start isEmpty. Operand 9984 states and 14676 transitions. [2022-03-17 19:10:03,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-03-17 19:10:03,769 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:10:03,769 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 19:10:03,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-17 19:10:03,991 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:10:03,991 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:10:03,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:10:03,992 INFO L85 PathProgramCache]: Analyzing trace with hash -360571007, now seen corresponding path program 1 times [2022-03-17 19:10:03,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:10:03,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873481946] [2022-03-17 19:10:03,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:10:03,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:10:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:10:07,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:10:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:10:07,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 745 proven. 2620 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2022-03-17 19:10:07,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:10:07,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873481946] [2022-03-17 19:10:07,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873481946] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:10:07,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524348878] [2022-03-17 19:10:07,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:10:07,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:10:07,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:10:07,102 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:10:07,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-17 19:10:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:10:08,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 2794 conjuncts, 100 conjunts are in the unsatisfiable core [2022-03-17 19:10:08,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:10:08,497 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:10:08,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 19:10:08,597 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 19:10:08,597 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-17 19:10:08,699 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 9 treesize of output 3 [2022-03-17 19:10:08,806 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 19:10:09,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-17 19:10:09,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:09,140 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-17 19:10:09,164 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-17 19:10:09,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-17 19:10:09,175 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:10:09,175 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-03-17 19:10:09,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:09,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-17 19:10:09,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:09,802 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-17 19:10:09,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-17 19:10:09,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:09,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 19:10:09,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:09,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 19:10:09,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:09,866 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 19:10:09,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:09,892 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 19:10:09,892 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-17 19:10:10,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:10,665 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 19:10:10,665 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-17 19:10:10,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:10,720 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 19:10:10,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-17 19:10:10,771 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-03-17 19:10:10,771 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-03-17 19:10:12,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:12,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:12,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:12,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:12,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:12,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:12,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 379 treesize of output 313 [2022-03-17 19:10:12,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:12,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:12,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:12,464 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-03-17 19:10:12,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 379 treesize of output 392 [2022-03-17 19:10:12,494 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-03-17 19:10:12,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 407 treesize of output 317 [2022-03-17 19:10:17,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:17,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:17,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:17,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 286 [2022-03-17 19:10:17,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:17,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:17,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:17,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 304 [2022-03-17 19:10:17,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:17,581 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 19:10:17,581 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 374 treesize of output 362 [2022-03-17 19:10:17,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:17,876 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 148 [2022-03-17 19:10:17,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:10:17,881 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 88 [2022-03-17 19:10:17,905 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-03-17 19:10:17,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 107 treesize of output 108 [2022-03-17 19:10:18,014 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 19:10:18,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-17 19:10:18,148 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 19:10:18,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-17 19:10:18,180 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1547 proven. 538 refuted. 0 times theorem prover too weak. 1810 trivial. 0 not checked. [2022-03-17 19:10:18,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:10:22,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:10:22,554 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:10:22,554 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 816 treesize of output 714 [2022-03-17 19:10:23,575 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1689 proven. 141 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked. [2022-03-17 19:10:23,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524348878] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 19:10:23,575 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 19:10:23,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 19, 13] total 49 [2022-03-17 19:10:23,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008680539] [2022-03-17 19:10:23,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 19:10:23,577 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-03-17 19:10:23,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:10:23,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-03-17 19:10:23,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=2026, Unknown=0, NotChecked=0, Total=2352 [2022-03-17 19:10:23,579 INFO L87 Difference]: Start difference. First operand 9984 states and 14676 transitions. Second operand has 49 states, 48 states have (on average 17.479166666666668) internal successors, (839), 47 states have internal predecessors, (839), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:10:26,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:10:28,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:10:29,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:10:31,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:10:33,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:10:35,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:10:37,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:10:39,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:10:41,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:10:43,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:11:21,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:11:21,259 INFO L93 Difference]: Finished difference Result 55664 states and 79942 transitions. [2022-03-17 19:11:21,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 208 states. [2022-03-17 19:11:21,260 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 17.479166666666668) internal successors, (839), 47 states have internal predecessors, (839), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 645 [2022-03-17 19:11:21,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:11:21,320 INFO L225 Difference]: With dead ends: 55664 [2022-03-17 19:11:21,320 INFO L226 Difference]: Without dead ends: 55664 [2022-03-17 19:11:21,323 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1666 GetRequests, 1412 SyntacticMatches, 16 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22334 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=6739, Invalid=50621, Unknown=0, NotChecked=0, Total=57360 [2022-03-17 19:11:21,324 INFO L912 BasicCegarLoop]: 1155 mSDtfsCounter, 5768 mSDsluCounter, 19752 mSDsCounter, 0 mSdLazyCounter, 22282 mSolverCounterSat, 941 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5768 SdHoareTripleChecker+Valid, 20907 SdHoareTripleChecker+Invalid, 29378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 941 IncrementalHoareTripleChecker+Valid, 22282 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 6149 IncrementalHoareTripleChecker+Unchecked, 41.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:11:21,324 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [5768 Valid, 20907 Invalid, 29378 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [941 Valid, 22282 Invalid, 6 Unknown, 6149 Unchecked, 41.4s Time] [2022-03-17 19:11:21,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55664 states. [2022-03-17 19:11:21,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55664 to 33994. [2022-03-17 19:11:21,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33994 states, 33989 states have (on average 1.4731825002206596) internal successors, (50072), 33989 states have internal predecessors, (50072), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:11:21,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33994 states to 33994 states and 50076 transitions. [2022-03-17 19:11:21,953 INFO L78 Accepts]: Start accepts. Automaton has 33994 states and 50076 transitions. Word has length 645 [2022-03-17 19:11:21,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:11:21,954 INFO L478 AbstractCegarLoop]: Abstraction has 33994 states and 50076 transitions. [2022-03-17 19:11:21,954 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 17.479166666666668) internal successors, (839), 47 states have internal predecessors, (839), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:11:21,954 INFO L276 IsEmpty]: Start isEmpty. Operand 33994 states and 50076 transitions. [2022-03-17 19:11:21,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2022-03-17 19:11:21,993 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:11:21,993 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 8, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:11:22,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-17 19:11:22,208 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:11:22,208 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:11:22,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:11:22,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2043647021, now seen corresponding path program 1 times [2022-03-17 19:11:22,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:11:22,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811809984] [2022-03-17 19:11:22,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:11:22,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:11:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:11:22,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:11:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:11:22,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 893 proven. 0 refuted. 0 times theorem prover too weak. 3006 trivial. 0 not checked. [2022-03-17 19:11:22,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:11:22,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811809984] [2022-03-17 19:11:22,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811809984] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:11:22,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:11:22,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:11:22,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193191980] [2022-03-17 19:11:22,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:11:22,634 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:11:22,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:11:22,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:11:22,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:11:22,635 INFO L87 Difference]: Start difference. First operand 33994 states and 50076 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:11:23,765 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 [] [2022-03-17 19:11:25,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:11:27,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:11:28,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:11:28,913 INFO L93 Difference]: Finished difference Result 36121 states and 52880 transitions. [2022-03-17 19:11:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:11:28,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 650 [2022-03-17 19:11:28,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:11:28,997 INFO L225 Difference]: With dead ends: 36121 [2022-03-17 19:11:28,997 INFO L226 Difference]: Without dead ends: 35784 [2022-03-17 19:11:28,997 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:11:28,997 INFO L912 BasicCegarLoop]: 146 mSDtfsCounter, 104 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:11:28,998 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 408 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 19:11:29,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35784 states. [2022-03-17 19:11:29,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35784 to 33197. [2022-03-17 19:11:29,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33197 states, 33192 states have (on average 1.4730959267293324) internal successors, (48895), 33192 states have internal predecessors, (48895), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:11:29,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33197 states to 33197 states and 48899 transitions. [2022-03-17 19:11:29,380 INFO L78 Accepts]: Start accepts. Automaton has 33197 states and 48899 transitions. Word has length 650 [2022-03-17 19:11:29,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:11:29,380 INFO L478 AbstractCegarLoop]: Abstraction has 33197 states and 48899 transitions. [2022-03-17 19:11:29,380 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:11:29,380 INFO L276 IsEmpty]: Start isEmpty. Operand 33197 states and 48899 transitions. [2022-03-17 19:11:29,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2022-03-17 19:11:29,413 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:11:29,413 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-03-17 19:11:29,413 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-17 19:11:29,413 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:11:29,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:11:29,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1920788225, now seen corresponding path program 1 times [2022-03-17 19:11:29,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:11:29,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152949535] [2022-03-17 19:11:29,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:11:29,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:11:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:11:30,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:11:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:11:30,701 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 1644 proven. 248 refuted. 0 times theorem prover too weak. 2007 trivial. 0 not checked. [2022-03-17 19:11:30,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:11:30,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152949535] [2022-03-17 19:11:30,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152949535] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:11:30,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587508715] [2022-03-17 19:11:30,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:11:30,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:11:30,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:11:30,703 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:11:30,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-17 19:11:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:11:32,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 2860 conjuncts, 47 conjunts are in the unsatisfiable core [2022-03-17 19:11:32,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:11:32,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:11:32,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-03-17 19:11:32,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:11:32,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-03-17 19:11:32,300 INFO L356 Elim1Store]: treesize reduction 99, result has 17.5 percent of original size [2022-03-17 19:11:32,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 34 [2022-03-17 19:11:32,414 INFO L356 Elim1Store]: treesize reduction 75, result has 37.5 percent of original size [2022-03-17 19:11:32,414 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 60 [2022-03-17 19:11:32,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:11:32,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 19:11:32,433 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:11:32,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 19:11:32,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:11:32,480 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 19:11:32,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:11:32,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 19:11:32,494 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-03-17 19:11:32,495 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2022-03-17 19:11:32,533 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 66 treesize of output 48 [2022-03-17 19:11:32,535 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 48 treesize of output 30 [2022-03-17 19:11:32,541 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-03-17 19:11:32,541 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 28 treesize of output 10 [2022-03-17 19:11:33,167 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 462 proven. 1 refuted. 0 times theorem prover too weak. 3436 trivial. 0 not checked. [2022-03-17 19:11:33,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:11:34,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 462 proven. 1 refuted. 0 times theorem prover too weak. 3436 trivial. 0 not checked. [2022-03-17 19:11:34,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587508715] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 19:11:34,250 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 19:11:34,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9, 9] total 29 [2022-03-17 19:11:34,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896837926] [2022-03-17 19:11:34,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 19:11:34,251 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-17 19:11:34,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:11:34,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-17 19:11:34,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=699, Unknown=0, NotChecked=0, Total=812 [2022-03-17 19:11:34,252 INFO L87 Difference]: Start difference. First operand 33197 states and 48899 transitions. Second operand has 29 states, 29 states have (on average 14.275862068965518) internal successors, (414), 28 states have internal predecessors, (414), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:11:35,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:11:38,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:11:40,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:11:42,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:11:45,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:11:47,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:11:49,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:04,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:12:04,173 INFO L93 Difference]: Finished difference Result 174618 states and 245876 transitions. [2022-03-17 19:12:04,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2022-03-17 19:12:04,173 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 14.275862068965518) internal successors, (414), 28 states have internal predecessors, (414), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 653 [2022-03-17 19:12:04,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:12:04,364 INFO L225 Difference]: With dead ends: 174618 [2022-03-17 19:12:04,364 INFO L226 Difference]: Without dead ends: 174548 [2022-03-17 19:12:04,366 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1531 GetRequests, 1346 SyntacticMatches, 1 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12528 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=4761, Invalid=29649, Unknown=0, NotChecked=0, Total=34410 [2022-03-17 19:12:04,366 INFO L912 BasicCegarLoop]: 600 mSDtfsCounter, 2129 mSDsluCounter, 8493 mSDsCounter, 0 mSdLazyCounter, 10106 mSolverCounterSat, 450 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 9093 SdHoareTripleChecker+Invalid, 12579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 10106 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 2019 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:12:04,366 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2129 Valid, 9093 Invalid, 12579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 10106 Invalid, 4 Unknown, 2019 Unchecked, 24.6s Time] [2022-03-17 19:12:04,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174548 states. [2022-03-17 19:12:05,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174548 to 80338. [2022-03-17 19:12:05,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80338 states, 80333 states have (on average 1.444823422503828) internal successors, (116067), 80333 states have internal predecessors, (116067), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:12:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80338 states to 80338 states and 116071 transitions. [2022-03-17 19:12:05,981 INFO L78 Accepts]: Start accepts. Automaton has 80338 states and 116071 transitions. Word has length 653 [2022-03-17 19:12:05,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:12:05,981 INFO L478 AbstractCegarLoop]: Abstraction has 80338 states and 116071 transitions. [2022-03-17 19:12:05,981 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 14.275862068965518) internal successors, (414), 28 states have internal predecessors, (414), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:12:05,981 INFO L276 IsEmpty]: Start isEmpty. Operand 80338 states and 116071 transitions. [2022-03-17 19:12:06,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2022-03-17 19:12:06,257 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:12:06,257 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 12, 12, 12, 12, 12, 12, 12, 9, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:12:06,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-17 19:12:06,483 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-03-17 19:12:06,483 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:12:06,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:12:06,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1632412000, now seen corresponding path program 1 times [2022-03-17 19:12:06,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:12:06,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937517282] [2022-03-17 19:12:06,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:12:06,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:12:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:12:06,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:12:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:12:06,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3909 backedges. 465 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2022-03-17 19:12:06,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:12:06,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937517282] [2022-03-17 19:12:06,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937517282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:12:06,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:12:06,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:12:06,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848638460] [2022-03-17 19:12:06,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:12:06,900 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:12:06,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:12:06,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:12:06,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:12:06,900 INFO L87 Difference]: Start difference. First operand 80338 states and 116071 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:12:08,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:10,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:12,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:12,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:12:12,570 INFO L93 Difference]: Finished difference Result 81862 states and 116265 transitions. [2022-03-17 19:12:12,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:12:12,571 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 655 [2022-03-17 19:12:12,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:12:12,708 INFO L225 Difference]: With dead ends: 81862 [2022-03-17 19:12:12,709 INFO L226 Difference]: Without dead ends: 81862 [2022-03-17 19:12:12,709 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:12:12,709 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 183 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:12:12,709 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 234 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 231 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 19:12:12,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81862 states. [2022-03-17 19:12:13,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81862 to 81378. [2022-03-17 19:12:13,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81378 states, 81373 states have (on average 1.4227938013837513) internal successors, (115777), 81373 states have internal predecessors, (115777), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:12:13,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81378 states to 81378 states and 115781 transitions. [2022-03-17 19:12:13,685 INFO L78 Accepts]: Start accepts. Automaton has 81378 states and 115781 transitions. Word has length 655 [2022-03-17 19:12:13,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:12:13,685 INFO L478 AbstractCegarLoop]: Abstraction has 81378 states and 115781 transitions. [2022-03-17 19:12:13,690 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:12:13,691 INFO L276 IsEmpty]: Start isEmpty. Operand 81378 states and 115781 transitions. [2022-03-17 19:12:13,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2022-03-17 19:12:13,761 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:12:13,761 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 12, 12, 12, 12, 12, 12, 12, 9, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:12:13,761 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-17 19:12:13,761 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:12:13,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:12:13,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1223747399, now seen corresponding path program 1 times [2022-03-17 19:12:13,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:12:13,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914335673] [2022-03-17 19:12:13,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:12:13,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:12:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:12:14,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:12:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:12:14,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3913 backedges. 469 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2022-03-17 19:12:14,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:12:14,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914335673] [2022-03-17 19:12:14,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914335673] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:12:14,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:12:14,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:12:14,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224975090] [2022-03-17 19:12:14,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:12:14,203 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:12:14,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:12:14,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:12:14,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:12:14,204 INFO L87 Difference]: Start difference. First operand 81378 states and 115781 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:12:16,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:16,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:12:16,985 INFO L93 Difference]: Finished difference Result 160914 states and 226066 transitions. [2022-03-17 19:12:16,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:12:16,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 657 [2022-03-17 19:12:16,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:12:17,272 INFO L225 Difference]: With dead ends: 160914 [2022-03-17 19:12:17,273 INFO L226 Difference]: Without dead ends: 160914 [2022-03-17 19:12:17,273 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:12:17,273 INFO L912 BasicCegarLoop]: 405 mSDtfsCounter, 175 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:12:17,273 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 620 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 413 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 19:12:17,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160914 states. [2022-03-17 19:12:18,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160914 to 160912. [2022-03-17 19:12:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160912 states, 160907 states have (on average 1.4049171260417508) internal successors, (226061), 160907 states have internal predecessors, (226061), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:12:19,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160912 states to 160912 states and 226065 transitions. [2022-03-17 19:12:19,249 INFO L78 Accepts]: Start accepts. Automaton has 160912 states and 226065 transitions. Word has length 657 [2022-03-17 19:12:19,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:12:19,249 INFO L478 AbstractCegarLoop]: Abstraction has 160912 states and 226065 transitions. [2022-03-17 19:12:19,249 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:12:19,250 INFO L276 IsEmpty]: Start isEmpty. Operand 160912 states and 226065 transitions. [2022-03-17 19:12:19,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2022-03-17 19:12:19,614 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:12:19,615 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 12, 12, 12, 12, 12, 12, 12, 9, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:12:19,615 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-17 19:12:19,615 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:12:19,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:12:19,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1257027363, now seen corresponding path program 1 times [2022-03-17 19:12:19,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:12:19,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429000946] [2022-03-17 19:12:19,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:12:19,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:12:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:12:21,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:12:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:12:21,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3915 backedges. 1497 proven. 761 refuted. 0 times theorem prover too weak. 1657 trivial. 0 not checked. [2022-03-17 19:12:21,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:12:21,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429000946] [2022-03-17 19:12:21,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429000946] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:12:21,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860429561] [2022-03-17 19:12:21,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:12:21,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:12:21,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:12:21,009 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:12:21,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-17 19:12:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:12:22,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 55 conjunts are in the unsatisfiable core [2022-03-17 19:12:22,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:12:23,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 19:12:23,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:12:23,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2022-03-17 19:12:23,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:12:23,320 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 19:12:23,321 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 69 [2022-03-17 19:12:23,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:12:23,325 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2022-03-17 19:12:23,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:12:23,816 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 19:12:23,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 91 [2022-03-17 19:12:23,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:12:23,822 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 70 [2022-03-17 19:12:23,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:12:23,830 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 70 [2022-03-17 19:12:23,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:12:23,873 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 19:12:23,900 INFO L356 Elim1Store]: treesize reduction 75, result has 37.5 percent of original size [2022-03-17 19:12:23,900 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 83 [2022-03-17 19:12:23,909 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:12:23,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 68 [2022-03-17 19:12:23,957 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 89 treesize of output 65 [2022-03-17 19:12:24,073 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 25 treesize of output 13 [2022-03-17 19:12:24,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-03-17 19:12:24,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 19:12:24,268 INFO L134 CoverageAnalysis]: Checked inductivity of 3915 backedges. 2012 proven. 88 refuted. 0 times theorem prover too weak. 1815 trivial. 0 not checked. [2022-03-17 19:12:24,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:12:25,566 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 32 treesize of output 20 [2022-03-17 19:12:25,568 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 28 treesize of output 16 [2022-03-17 19:12:25,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3915 backedges. 2012 proven. 63 refuted. 0 times theorem prover too weak. 1840 trivial. 0 not checked. [2022-03-17 19:12:25,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860429561] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 19:12:25,929 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 19:12:25,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 10] total 35 [2022-03-17 19:12:25,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424518235] [2022-03-17 19:12:25,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 19:12:25,931 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-17 19:12:25,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:12:25,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-17 19:12:25,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1070, Unknown=0, NotChecked=0, Total=1190 [2022-03-17 19:12:25,931 INFO L87 Difference]: Start difference. First operand 160912 states and 226065 transitions. Second operand has 35 states, 35 states have (on average 16.6) internal successors, (581), 34 states have internal predecessors, (581), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:12:27,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:28,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:30,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:32,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:33,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:35,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:38,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:40,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:42,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:43,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:45,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:48,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:50,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:51,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:12:52,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:13:34,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:13:34,708 INFO L93 Difference]: Finished difference Result 1069836 states and 1453820 transitions. [2022-03-17 19:13:34,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 502 states. [2022-03-17 19:13:34,709 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 16.6) internal successors, (581), 34 states have internal predecessors, (581), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 658 [2022-03-17 19:13:34,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:13:36,650 INFO L225 Difference]: With dead ends: 1069836 [2022-03-17 19:13:36,651 INFO L226 Difference]: Without dead ends: 1064700 [2022-03-17 19:13:36,663 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 2051 GetRequests, 1520 SyntacticMatches, 6 SemanticMatches, 525 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122180 ImplicationChecksByTransitivity, 22.3s TimeCoverageRelationStatistics Valid=21063, Invalid=256139, Unknown=0, NotChecked=0, Total=277202 [2022-03-17 19:13:36,663 INFO L912 BasicCegarLoop]: 792 mSDtfsCounter, 14541 mSDsluCounter, 13509 mSDsCounter, 0 mSdLazyCounter, 15199 mSolverCounterSat, 3804 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14541 SdHoareTripleChecker+Valid, 14301 SdHoareTripleChecker+Invalid, 22174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3804 IncrementalHoareTripleChecker+Valid, 15199 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 3164 IncrementalHoareTripleChecker+Unchecked, 42.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:13:36,663 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [14541 Valid, 14301 Invalid, 22174 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3804 Valid, 15199 Invalid, 7 Unknown, 3164 Unchecked, 42.6s Time] [2022-03-17 19:13:37,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064700 states. [2022-03-17 19:13:47,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064700 to 762444. [2022-03-17 19:13:48,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762444 states, 762439 states have (on average 1.3828319380304523) internal successors, (1054325), 762439 states have internal predecessors, (1054325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:13:51,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762444 states to 762444 states and 1054329 transitions. [2022-03-17 19:13:51,121 INFO L78 Accepts]: Start accepts. Automaton has 762444 states and 1054329 transitions. Word has length 658 [2022-03-17 19:13:51,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:13:51,122 INFO L478 AbstractCegarLoop]: Abstraction has 762444 states and 1054329 transitions. [2022-03-17 19:13:51,122 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 16.6) internal successors, (581), 34 states have internal predecessors, (581), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:13:51,122 INFO L276 IsEmpty]: Start isEmpty. Operand 762444 states and 1054329 transitions. [2022-03-17 19:13:52,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2022-03-17 19:13:52,077 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:13:52,077 INFO L500 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:13:52,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-17 19:13:52,277 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:13:52,278 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:13:52,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:13:52,279 INFO L85 PathProgramCache]: Analyzing trace with hash -820872816, now seen corresponding path program 2 times [2022-03-17 19:13:52,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:13:52,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986641706] [2022-03-17 19:13:52,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:13:52,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:13:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:13:54,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:13:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:13:54,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4334 backedges. 1887 proven. 297 refuted. 0 times theorem prover too weak. 2150 trivial. 0 not checked. [2022-03-17 19:13:54,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:13:54,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986641706] [2022-03-17 19:13:54,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986641706] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:13:54,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729971156] [2022-03-17 19:13:54,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-17 19:13:54,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:13:54,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:13:54,600 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:13:54,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-17 19:14:40,048 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-17 19:14:40,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-17 19:14:40,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 2886 conjuncts, 204 conjunts are in the unsatisfiable core [2022-03-17 19:14:40,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:14:40,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:14:40,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:14:40,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:14:40,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:14:40,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:14:40,548 INFO L356 Elim1Store]: treesize reduction 1040, result has 8.0 percent of original size [2022-03-17 19:14:40,549 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 92993518 treesize of output 19726460 [2022-03-17 19:14:42,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:14:49,327 INFO L244 Elim1Store]: Index analysis took 662 ms