/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.04.i.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:57:50,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:57:50,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:57:50,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 23:57:50,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 23:57:50,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 23:57:50,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 23:57:50,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 23:57:50,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 23:57:50,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 23:57:50,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 23:57:50,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 23:57:50,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:57:50,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:57:50,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:57:50,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:57:50,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:57:50,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:57:50,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:57:50,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:57:50,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:57:50,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:57:50,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:57:50,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:57:50,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 23:57:50,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 23:57:50,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 23:57:50,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 23:57:50,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 23:57:50,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 23:57:50,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 23:57:50,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 23:57:50,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 23:57:50,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 23:57:50,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 23:57:50,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 23:57:50,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 23:57:50,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 23:57:50,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:57:50,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:57:50,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:57:50,580 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-01-31 23:57:50,594 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:57:50,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:57:50,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:57:50,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:57:50,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:57:50,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:57:50,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:57:50,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:57:50,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:57:50,596 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:57:50,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:57:50,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:57:50,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:57:50,598 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:57:50,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:57:50,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:57:50,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:57:50,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:57:50,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:57:50,598 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-01-31 23:57:50,598 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:57:50,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:57:50,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:57:50,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:57:50,810 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:57:50,811 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:57:50,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.04.i.cil.c [2022-01-31 23:57:50,873 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/263e176ee/223fcbbda03849e6b01c9444e7f29e3b/FLAGddcdffdf5 [2022-01-31 23:57:51,436 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:57:51,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.04.i.cil.c [2022-01-31 23:57:51,462 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/263e176ee/223fcbbda03849e6b01c9444e7f29e3b/FLAGddcdffdf5 [2022-01-31 23:57:51,844 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/263e176ee/223fcbbda03849e6b01c9444e7f29e3b [2022-01-31 23:57:51,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:57:51,848 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:57:51,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:57:51,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:57:51,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:57:51,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:57:51" (1/1) ... [2022-01-31 23:57:51,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21fef59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:51, skipping insertion in model container [2022-01-31 23:57:51,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:57:51" (1/1) ... [2022-01-31 23:57:51,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:57:51,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:57:52,328 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.04.i.cil.c[72500,72513] [2022-01-31 23:57:52,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:57:52,353 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:57:52,462 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.04.i.cil.c[72500,72513] [2022-01-31 23:57:52,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:57:52,479 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:57:52,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:52 WrapperNode [2022-01-31 23:57:52,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:57:52,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:57:52,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:57:52,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:57:52,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:52" (1/1) ... [2022-01-31 23:57:52,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:52" (1/1) ... [2022-01-31 23:57:52,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:52" (1/1) ... [2022-01-31 23:57:52,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:52" (1/1) ... [2022-01-31 23:57:52,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:52" (1/1) ... [2022-01-31 23:57:52,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:52" (1/1) ... [2022-01-31 23:57:52,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:52" (1/1) ... [2022-01-31 23:57:52,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:57:52,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:57:52,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:57:52,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:57:52,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:52" (1/1) ... [2022-01-31 23:57:52,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:57:52,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:57:52,623 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) [2022-01-31 23:57:52,624 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 [2022-01-31 23:57:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:57:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:57:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:57:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-01-31 23:57:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-01-31 23:57:52,657 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:57:52,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 23:57:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-01-31 23:57:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-01-31 23:57:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-01-31 23:57:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:57:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:57:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:57:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:57:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 23:57:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 23:57:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 23:57:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 23:57:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-01-31 23:57:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-01-31 23:57:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-01-31 23:57:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-01-31 23:57:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 23:57:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-01-31 23:57:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-01-31 23:57:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-31 23:57:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:57:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 23:57:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:57:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-31 23:57:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:57:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-01-31 23:57:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-01-31 23:57:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:57:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:57:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:57:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-01-31 23:57:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-01-31 23:57:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-01-31 23:57:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-01-31 23:57:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:57:52,797 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:57:52,799 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:57:55,152 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 23:57:55,573 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-01-31 23:57:55,574 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-01-31 23:57:55,586 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:57:55,593 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:57:55,594 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 23:57:55,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:57:55 BoogieIcfgContainer [2022-01-31 23:57:55,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:57:55,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:57:55,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:57:55,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:57:55,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:57:51" (1/3) ... [2022-01-31 23:57:55,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88979bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:57:55, skipping insertion in model container [2022-01-31 23:57:55,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:52" (2/3) ... [2022-01-31 23:57:55,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88979bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:57:55, skipping insertion in model container [2022-01-31 23:57:55,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:57:55" (3/3) ... [2022-01-31 23:57:55,603 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.04.i.cil.c [2022-01-31 23:57:55,608 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:57:55,608 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:57:55,645 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:57:55,651 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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, mLoopAccelerationTechnique=QVASR [2022-01-31 23:57:55,651 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:57:55,667 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 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) [2022-01-31 23:57:55,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-31 23:57:55,678 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:55,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:57:55,679 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:55,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:55,684 INFO L85 PathProgramCache]: Analyzing trace with hash -2027838722, now seen corresponding path program 1 times [2022-01-31 23:57:55,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:55,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675591327] [2022-01-31 23:57:55,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:55,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:55,756 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:56,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:56,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:56,245 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:56,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675591327] [2022-01-31 23:57:56,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1675591327] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:56,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:56,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:56,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380265151] [2022-01-31 23:57:56,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:56,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:56,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:56,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:56,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:56,288 INFO L87 Difference]: Start difference. First operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:58,329 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 [] [2022-01-31 23:57:58,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:58,998 INFO L93 Difference]: Finished difference Result 324 states and 540 transitions. [2022-01-31 23:57:58,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:59,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-01-31 23:57:59,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:59,009 INFO L225 Difference]: With dead ends: 324 [2022-01-31 23:57:59,009 INFO L226 Difference]: Without dead ends: 165 [2022-01-31 23:57:59,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:59,014 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 34 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:59,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 577 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 23:57:59,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-01-31 23:57:59,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-01-31 23:57:59,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5384615384615385) internal successors, (220), 143 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:59,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 224 transitions. [2022-01-31 23:57:59,060 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 224 transitions. Word has length 52 [2022-01-31 23:57:59,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:59,061 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 224 transitions. [2022-01-31 23:57:59,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:59,062 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 224 transitions. [2022-01-31 23:57:59,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 23:57:59,074 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:59,074 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:57:59,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:57:59,075 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:59,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:59,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1075038228, now seen corresponding path program 1 times [2022-01-31 23:57:59,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:59,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217799272] [2022-01-31 23:57:59,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:59,096 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:59,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:59,101 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:59,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:59,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:59,306 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:59,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217799272] [2022-01-31 23:57:59,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1217799272] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:59,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:59,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:59,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732378477] [2022-01-31 23:57:59,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:59,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:59,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:59,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:59,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:59,311 INFO L87 Difference]: Start difference. First operand 148 states and 224 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) [2022-01-31 23:58:02,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:04,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:06,312 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 [] [2022-01-31 23:58:06,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:06,828 INFO L93 Difference]: Finished difference Result 287 states and 431 transitions. [2022-01-31 23:58:06,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:06,829 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 [2022-01-31 23:58:06,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:06,830 INFO L225 Difference]: With dead ends: 287 [2022-01-31 23:58:06,831 INFO L226 Difference]: Without dead ends: 165 [2022-01-31 23:58:06,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:06,832 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 24 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:06,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 453 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 351 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-01-31 23:58:06,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-01-31 23:58:06,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-01-31 23:58:06,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5314685314685315) internal successors, (219), 143 states have internal predecessors, (219), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:06,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 223 transitions. [2022-01-31 23:58:06,846 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 223 transitions. Word has length 65 [2022-01-31 23:58:06,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:06,846 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 223 transitions. [2022-01-31 23:58:06,847 INFO L471 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) [2022-01-31 23:58:06,847 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 223 transitions. [2022-01-31 23:58:06,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 23:58:06,848 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:06,848 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:06,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:58:06,848 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:06,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:06,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1045469476, now seen corresponding path program 1 times [2022-01-31 23:58:06,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:06,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994492537] [2022-01-31 23:58:06,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:06,858 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:06,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:06,865 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:07,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:07,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:07,026 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:07,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994492537] [2022-01-31 23:58:07,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [994492537] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:07,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:07,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:07,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518179618] [2022-01-31 23:58:07,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:07,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:07,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:07,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:07,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:07,028 INFO L87 Difference]: Start difference. First operand 148 states and 223 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) [2022-01-31 23:58:09,045 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 [] [2022-01-31 23:58:09,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:09,491 INFO L93 Difference]: Finished difference Result 286 states and 429 transitions. [2022-01-31 23:58:09,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:09,496 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 [2022-01-31 23:58:09,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:09,497 INFO L225 Difference]: With dead ends: 286 [2022-01-31 23:58:09,497 INFO L226 Difference]: Without dead ends: 164 [2022-01-31 23:58:09,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:09,499 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 28 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:09,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 455 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:09,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-01-31 23:58:09,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 148. [2022-01-31 23:58:09,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5244755244755244) internal successors, (218), 143 states have internal predecessors, (218), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:09,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 222 transitions. [2022-01-31 23:58:09,520 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 222 transitions. Word has length 66 [2022-01-31 23:58:09,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:09,521 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 222 transitions. [2022-01-31 23:58:09,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:09,521 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 222 transitions. [2022-01-31 23:58:09,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 23:58:09,522 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:09,522 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:09,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 23:58:09,522 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:09,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:09,523 INFO L85 PathProgramCache]: Analyzing trace with hash -207458704, now seen corresponding path program 1 times [2022-01-31 23:58:09,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:09,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1479828771] [2022-01-31 23:58:09,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:09,540 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:09,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:09,545 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:09,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:09,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:09,721 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:09,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1479828771] [2022-01-31 23:58:09,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1479828771] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:09,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:09,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:09,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772462327] [2022-01-31 23:58:09,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:09,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:09,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:09,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:09,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:09,723 INFO L87 Difference]: Start difference. First operand 148 states and 222 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) [2022-01-31 23:58:11,734 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 [] [2022-01-31 23:58:12,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:12,331 INFO L93 Difference]: Finished difference Result 383 states and 582 transitions. [2022-01-31 23:58:12,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:12,331 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 [2022-01-31 23:58:12,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:12,333 INFO L225 Difference]: With dead ends: 383 [2022-01-31 23:58:12,333 INFO L226 Difference]: Without dead ends: 261 [2022-01-31 23:58:12,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:12,335 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 139 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:12,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 312 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 23:58:12,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-01-31 23:58:12,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 160. [2022-01-31 23:58:12,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.5161290322580645) internal successors, (235), 155 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) [2022-01-31 23:58:12,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 239 transitions. [2022-01-31 23:58:12,348 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 239 transitions. Word has length 66 [2022-01-31 23:58:12,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:12,349 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 239 transitions. [2022-01-31 23:58:12,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:12,349 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 239 transitions. [2022-01-31 23:58:12,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 23:58:12,350 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:12,350 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:12,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 23:58:12,350 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:12,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:12,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1867256871, now seen corresponding path program 1 times [2022-01-31 23:58:12,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:12,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126275739] [2022-01-31 23:58:12,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:12,357 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:12,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:12,360 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:12,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:12,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:12,469 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:12,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126275739] [2022-01-31 23:58:12,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [126275739] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:12,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:12,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:12,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416493404] [2022-01-31 23:58:12,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:12,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:12,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:12,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:12,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:12,472 INFO L87 Difference]: Start difference. First operand 160 states and 239 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) [2022-01-31 23:58:14,481 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 [] [2022-01-31 23:58:14,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:14,907 INFO L93 Difference]: Finished difference Result 308 states and 461 transitions. [2022-01-31 23:58:14,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:14,908 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 [2022-01-31 23:58:14,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:14,909 INFO L225 Difference]: With dead ends: 308 [2022-01-31 23:58:14,909 INFO L226 Difference]: Without dead ends: 174 [2022-01-31 23:58:14,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:14,911 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 20 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:14,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 459 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 344 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:14,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-01-31 23:58:14,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 160. [2022-01-31 23:58:14,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.5096774193548388) internal successors, (234), 155 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) [2022-01-31 23:58:14,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 238 transitions. [2022-01-31 23:58:14,921 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 238 transitions. Word has length 66 [2022-01-31 23:58:14,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:14,921 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 238 transitions. [2022-01-31 23:58:14,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:14,921 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 238 transitions. [2022-01-31 23:58:14,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 23:58:14,922 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:14,922 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:14,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 23:58:14,923 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:14,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:14,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1927058904, now seen corresponding path program 1 times [2022-01-31 23:58:14,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:14,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289425300] [2022-01-31 23:58:14,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:14,927 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:14,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:14,930 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:15,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:15,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:15,078 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:15,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289425300] [2022-01-31 23:58:15,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [289425300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:15,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:15,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:15,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595459165] [2022-01-31 23:58:15,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:15,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:15,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:15,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:15,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:15,080 INFO L87 Difference]: Start difference. First operand 160 states and 238 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) [2022-01-31 23:58:17,090 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 [] [2022-01-31 23:58:17,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:17,496 INFO L93 Difference]: Finished difference Result 307 states and 459 transitions. [2022-01-31 23:58:17,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:17,497 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 [2022-01-31 23:58:17,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:17,498 INFO L225 Difference]: With dead ends: 307 [2022-01-31 23:58:17,498 INFO L226 Difference]: Without dead ends: 173 [2022-01-31 23:58:17,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:17,499 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 18 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:17,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:17,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-01-31 23:58:17,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 160. [2022-01-31 23:58:17,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.5032258064516129) internal successors, (233), 155 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) [2022-01-31 23:58:17,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 237 transitions. [2022-01-31 23:58:17,508 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 237 transitions. Word has length 66 [2022-01-31 23:58:17,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:17,508 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 237 transitions. [2022-01-31 23:58:17,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:17,509 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 237 transitions. [2022-01-31 23:58:17,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-31 23:58:17,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:17,510 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:17,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 23:58:17,510 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:17,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:17,510 INFO L85 PathProgramCache]: Analyzing trace with hash 527212629, now seen corresponding path program 1 times [2022-01-31 23:58:17,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:17,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837819123] [2022-01-31 23:58:17,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:17,517 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:17,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:17,522 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:17,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:17,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:17,640 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:17,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837819123] [2022-01-31 23:58:17,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [837819123] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:17,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:17,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:17,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620626986] [2022-01-31 23:58:17,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:17,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:17,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:17,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:17,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:17,642 INFO L87 Difference]: Start difference. First operand 160 states and 237 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) [2022-01-31 23:58:19,656 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 [] [2022-01-31 23:58:20,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:20,212 INFO L93 Difference]: Finished difference Result 395 states and 596 transitions. [2022-01-31 23:58:20,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:20,213 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 [2022-01-31 23:58:20,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:20,214 INFO L225 Difference]: With dead ends: 395 [2022-01-31 23:58:20,215 INFO L226 Difference]: Without dead ends: 261 [2022-01-31 23:58:20,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:20,216 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 137 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:20,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 312 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 23:58:20,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-01-31 23:58:20,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 161. [2022-01-31 23:58:20,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.4935897435897436) internal successors, (233), 156 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) [2022-01-31 23:58:20,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 237 transitions. [2022-01-31 23:58:20,224 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 237 transitions. Word has length 67 [2022-01-31 23:58:20,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:20,225 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 237 transitions. [2022-01-31 23:58:20,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:20,225 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 237 transitions. [2022-01-31 23:58:20,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-31 23:58:20,226 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:20,226 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:20,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 23:58:20,226 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:20,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:20,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1788390677, now seen corresponding path program 1 times [2022-01-31 23:58:20,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:20,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842743242] [2022-01-31 23:58:20,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:20,234 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:20,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:20,238 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:20,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:20,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:20,347 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:20,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [842743242] [2022-01-31 23:58:20,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [842743242] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:20,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:20,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:20,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815209034] [2022-01-31 23:58:20,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:20,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:20,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:20,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:20,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:20,350 INFO L87 Difference]: Start difference. First operand 161 states and 237 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) [2022-01-31 23:58:22,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:22,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:22,919 INFO L93 Difference]: Finished difference Result 396 states and 595 transitions. [2022-01-31 23:58:22,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:22,920 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 [2022-01-31 23:58:22,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:22,921 INFO L225 Difference]: With dead ends: 396 [2022-01-31 23:58:22,921 INFO L226 Difference]: Without dead ends: 261 [2022-01-31 23:58:22,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:22,923 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 135 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:22,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 312 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 23:58:22,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-01-31 23:58:22,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 162. [2022-01-31 23:58:22,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.484076433121019) internal successors, (233), 157 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) [2022-01-31 23:58:22,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 237 transitions. [2022-01-31 23:58:22,930 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 237 transitions. Word has length 68 [2022-01-31 23:58:22,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:22,930 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 237 transitions. [2022-01-31 23:58:22,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:22,931 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 237 transitions. [2022-01-31 23:58:22,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-31 23:58:22,931 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:22,932 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:22,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 23:58:22,932 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:22,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:22,932 INFO L85 PathProgramCache]: Analyzing trace with hash -2103559590, now seen corresponding path program 1 times [2022-01-31 23:58:22,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:22,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756240425] [2022-01-31 23:58:22,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:22,939 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:22,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:22,943 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:23,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:23,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:23,050 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:23,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756240425] [2022-01-31 23:58:23,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1756240425] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:23,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:23,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:23,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947710426] [2022-01-31 23:58:23,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:23,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:23,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:23,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:23,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:23,052 INFO L87 Difference]: Start difference. First operand 162 states and 237 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) [2022-01-31 23:58:25,061 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 [] [2022-01-31 23:58:25,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:25,426 INFO L93 Difference]: Finished difference Result 301 states and 447 transitions. [2022-01-31 23:58:25,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:25,427 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 [2022-01-31 23:58:25,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:25,428 INFO L225 Difference]: With dead ends: 301 [2022-01-31 23:58:25,428 INFO L226 Difference]: Without dead ends: 165 [2022-01-31 23:58:25,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:25,429 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 11 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:25,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 475 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:25,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-01-31 23:58:25,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 162. [2022-01-31 23:58:25,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.4777070063694266) internal successors, (232), 157 states have internal predecessors, (232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:25,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 236 transitions. [2022-01-31 23:58:25,436 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 236 transitions. Word has length 69 [2022-01-31 23:58:25,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:25,436 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 236 transitions. [2022-01-31 23:58:25,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:25,437 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 236 transitions. [2022-01-31 23:58:25,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-31 23:58:25,437 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:25,437 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:25,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 23:58:25,438 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:25,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:25,438 INFO L85 PathProgramCache]: Analyzing trace with hash 890818627, now seen corresponding path program 1 times [2022-01-31 23:58:25,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:25,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482570334] [2022-01-31 23:58:25,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:25,443 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:25,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:25,447 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:25,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:25,550 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:25,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482570334] [2022-01-31 23:58:25,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1482570334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:25,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:25,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:25,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748175131] [2022-01-31 23:58:25,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:25,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:25,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:25,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:25,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:25,552 INFO L87 Difference]: Start difference. First operand 162 states and 236 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) [2022-01-31 23:58:27,562 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 [] [2022-01-31 23:58:28,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:28,055 INFO L93 Difference]: Finished difference Result 411 states and 613 transitions. [2022-01-31 23:58:28,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:28,055 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 [2022-01-31 23:58:28,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:28,057 INFO L225 Difference]: With dead ends: 411 [2022-01-31 23:58:28,057 INFO L226 Difference]: Without dead ends: 275 [2022-01-31 23:58:28,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:28,058 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 105 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:28,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 313 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 23:58:28,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-01-31 23:58:28,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 205. [2022-01-31 23:58:28,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.545) internal successors, (309), 200 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:28,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 313 transitions. [2022-01-31 23:58:28,068 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 313 transitions. Word has length 69 [2022-01-31 23:58:28,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:28,068 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 313 transitions. [2022-01-31 23:58:28,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:28,068 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 313 transitions. [2022-01-31 23:58:28,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-31 23:58:28,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:28,069 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:28,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 23:58:28,070 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:28,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:28,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1838419001, now seen corresponding path program 1 times [2022-01-31 23:58:28,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:28,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954901721] [2022-01-31 23:58:28,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:28,075 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:28,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:28,079 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:28,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:28,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:28,181 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:28,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954901721] [2022-01-31 23:58:28,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1954901721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:28,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:28,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:28,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853738485] [2022-01-31 23:58:28,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:28,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:28,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:28,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:28,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:28,183 INFO L87 Difference]: Start difference. First operand 205 states and 313 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:29,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:31,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:33,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:35,838 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 [] [2022-01-31 23:58:36,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:36,258 INFO L93 Difference]: Finished difference Result 427 states and 659 transitions. [2022-01-31 23:58:36,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:36,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-01-31 23:58:36,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:36,260 INFO L225 Difference]: With dead ends: 427 [2022-01-31 23:58:36,260 INFO L226 Difference]: Without dead ends: 248 [2022-01-31 23:58:36,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:36,261 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 31 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:36,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 473 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 385 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-01-31 23:58:36,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-01-31 23:58:36,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 227. [2022-01-31 23:58:36,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 222 states have (on average 1.5495495495495495) internal successors, (344), 222 states have internal predecessors, (344), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:36,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 348 transitions. [2022-01-31 23:58:36,272 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 348 transitions. Word has length 70 [2022-01-31 23:58:36,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:36,272 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 348 transitions. [2022-01-31 23:58:36,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:36,272 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 348 transitions. [2022-01-31 23:58:36,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-31 23:58:36,273 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:36,273 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:36,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 23:58:36,274 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:36,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:36,274 INFO L85 PathProgramCache]: Analyzing trace with hash 2025171509, now seen corresponding path program 1 times [2022-01-31 23:58:36,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:36,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652521688] [2022-01-31 23:58:36,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:36,285 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:36,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:36,289 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:36,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:36,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:36,405 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:36,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652521688] [2022-01-31 23:58:36,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [652521688] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:36,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:36,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:36,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598884323] [2022-01-31 23:58:36,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:36,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:36,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:36,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:36,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:36,407 INFO L87 Difference]: Start difference. First operand 227 states and 348 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:38,416 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 [] [2022-01-31 23:58:38,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:38,836 INFO L93 Difference]: Finished difference Result 449 states and 693 transitions. [2022-01-31 23:58:38,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:38,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-01-31 23:58:38,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:38,838 INFO L225 Difference]: With dead ends: 449 [2022-01-31 23:58:38,838 INFO L226 Difference]: Without dead ends: 248 [2022-01-31 23:58:38,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:38,839 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 36 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:38,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 473 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:38,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-01-31 23:58:38,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 227. [2022-01-31 23:58:38,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 222 states have (on average 1.545045045045045) internal successors, (343), 222 states have internal predecessors, (343), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:38,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 347 transitions. [2022-01-31 23:58:38,849 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 347 transitions. Word has length 83 [2022-01-31 23:58:38,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:38,849 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 347 transitions. [2022-01-31 23:58:38,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:38,850 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 347 transitions. [2022-01-31 23:58:38,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-31 23:58:38,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:38,861 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:38,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 23:58:38,861 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:38,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:38,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1454749477, now seen corresponding path program 1 times [2022-01-31 23:58:38,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:38,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328549793] [2022-01-31 23:58:38,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:38,881 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:38,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:38,886 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:38,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:38,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:38,994 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:38,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328549793] [2022-01-31 23:58:38,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [328549793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:38,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:38,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:38,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320022920] [2022-01-31 23:58:38,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:38,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:38,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:38,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:38,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:38,996 INFO L87 Difference]: Start difference. First operand 227 states and 347 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:41,005 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 [] [2022-01-31 23:58:41,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:41,440 INFO L93 Difference]: Finished difference Result 457 states and 704 transitions. [2022-01-31 23:58:41,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:41,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-01-31 23:58:41,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:41,442 INFO L225 Difference]: With dead ends: 457 [2022-01-31 23:58:41,442 INFO L226 Difference]: Without dead ends: 256 [2022-01-31 23:58:41,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:41,443 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 19 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:41,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 542 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:41,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-01-31 23:58:41,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 243. [2022-01-31 23:58:41,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 238 states have (on average 1.5378151260504203) internal successors, (366), 238 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:41,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 370 transitions. [2022-01-31 23:58:41,454 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 370 transitions. Word has length 84 [2022-01-31 23:58:41,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:41,454 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 370 transitions. [2022-01-31 23:58:41,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:41,454 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 370 transitions. [2022-01-31 23:58:41,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-31 23:58:41,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:41,455 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:41,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 23:58:41,455 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:41,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:41,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1354545936, now seen corresponding path program 1 times [2022-01-31 23:58:41,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:41,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5725619] [2022-01-31 23:58:41,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:41,467 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:41,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:41,471 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:41,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:41,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:41,575 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:41,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5725619] [2022-01-31 23:58:41,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [5725619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:41,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:41,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:41,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984176915] [2022-01-31 23:58:41,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:41,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:41,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:41,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:41,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:41,576 INFO L87 Difference]: Start difference. First operand 243 states and 370 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) [2022-01-31 23:58:43,586 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 [] [2022-01-31 23:58:43,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:43,932 INFO L93 Difference]: Finished difference Result 479 states and 735 transitions. [2022-01-31 23:58:43,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:43,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-01-31 23:58:43,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:43,934 INFO L225 Difference]: With dead ends: 479 [2022-01-31 23:58:43,934 INFO L226 Difference]: Without dead ends: 262 [2022-01-31 23:58:43,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:43,935 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 34 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:43,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 477 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:58:43,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-01-31 23:58:43,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 243. [2022-01-31 23:58:43,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 238 states have (on average 1.5336134453781514) internal successors, (365), 238 states have internal predecessors, (365), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:43,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 369 transitions. [2022-01-31 23:58:43,946 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 369 transitions. Word has length 84 [2022-01-31 23:58:43,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:43,946 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 369 transitions. [2022-01-31 23:58:43,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:43,946 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 369 transitions. [2022-01-31 23:58:43,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-31 23:58:43,947 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:43,947 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:43,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 23:58:43,947 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:43,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:43,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1280749327, now seen corresponding path program 1 times [2022-01-31 23:58:43,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:43,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344818982] [2022-01-31 23:58:43,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:43,966 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:43,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:43,971 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:44,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:44,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:44,068 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:44,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344818982] [2022-01-31 23:58:44,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1344818982] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:44,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:44,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:44,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353207034] [2022-01-31 23:58:44,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:44,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:44,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:44,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:44,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:44,070 INFO L87 Difference]: Start difference. First operand 243 states and 369 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) [2022-01-31 23:58:46,079 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 [] [2022-01-31 23:58:46,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:46,426 INFO L93 Difference]: Finished difference Result 478 states and 732 transitions. [2022-01-31 23:58:46,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:46,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-01-31 23:58:46,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:46,428 INFO L225 Difference]: With dead ends: 478 [2022-01-31 23:58:46,428 INFO L226 Difference]: Without dead ends: 261 [2022-01-31 23:58:46,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:46,429 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 32 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:46,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 479 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:58:46,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-01-31 23:58:46,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 243. [2022-01-31 23:58:46,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 238 states have (on average 1.5294117647058822) internal successors, (364), 238 states have internal predecessors, (364), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:46,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 368 transitions. [2022-01-31 23:58:46,439 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 368 transitions. Word has length 84 [2022-01-31 23:58:46,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:46,439 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 368 transitions. [2022-01-31 23:58:46,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:46,439 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 368 transitions. [2022-01-31 23:58:46,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-31 23:58:46,440 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:46,440 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:46,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 23:58:46,441 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:46,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:46,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1669457340, now seen corresponding path program 1 times [2022-01-31 23:58:46,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:46,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654184610] [2022-01-31 23:58:46,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:46,455 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:46,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:46,460 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:46,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:46,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:46,581 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:46,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654184610] [2022-01-31 23:58:46,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1654184610] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:46,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:46,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:58:46,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656075627] [2022-01-31 23:58:46,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:46,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:58:46,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:46,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:58:46,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:46,582 INFO L87 Difference]: Start difference. First operand 243 states and 368 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 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) [2022-01-31 23:58:48,593 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 [] [2022-01-31 23:58:48,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:48,978 INFO L93 Difference]: Finished difference Result 469 states and 718 transitions. [2022-01-31 23:58:48,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 23:58:48,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 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 85 [2022-01-31 23:58:48,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:48,980 INFO L225 Difference]: With dead ends: 469 [2022-01-31 23:58:48,980 INFO L226 Difference]: Without dead ends: 252 [2022-01-31 23:58:48,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 23:58:48,981 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 3 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:48,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 593 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 421 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:48,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-01-31 23:58:48,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2022-01-31 23:58:48,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5182186234817814) internal successors, (375), 247 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:48,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 379 transitions. [2022-01-31 23:58:48,991 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 379 transitions. Word has length 85 [2022-01-31 23:58:48,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:48,992 INFO L470 AbstractCegarLoop]: Abstraction has 252 states and 379 transitions. [2022-01-31 23:58:48,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 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) [2022-01-31 23:58:48,992 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 379 transitions. [2022-01-31 23:58:48,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-31 23:58:48,993 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:48,993 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:48,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 23:58:48,993 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:48,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:48,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1295416728, now seen corresponding path program 1 times [2022-01-31 23:58:48,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:48,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864559908] [2022-01-31 23:58:48,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:49,009 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:49,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:49,023 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:49,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:49,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:49,119 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:49,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864559908] [2022-01-31 23:58:49,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [864559908] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:49,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:49,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:49,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542947430] [2022-01-31 23:58:49,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:49,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:49,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:49,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:49,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:49,121 INFO L87 Difference]: Start difference. First operand 252 states and 379 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) [2022-01-31 23:58:50,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:52,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:54,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:56,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:57,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:57,068 INFO L93 Difference]: Finished difference Result 576 states and 877 transitions. [2022-01-31 23:58:57,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:57,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-01-31 23:58:57,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:57,070 INFO L225 Difference]: With dead ends: 576 [2022-01-31 23:58:57,070 INFO L226 Difference]: Without dead ends: 350 [2022-01-31 23:58:57,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:57,072 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 133 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:57,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 316 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 463 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-01-31 23:58:57,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-01-31 23:58:57,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 253. [2022-01-31 23:58:57,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 248 states have (on average 1.5040322580645162) internal successors, (373), 248 states have internal predecessors, (373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:57,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 377 transitions. [2022-01-31 23:58:57,085 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 377 transitions. Word has length 88 [2022-01-31 23:58:57,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:57,085 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 377 transitions. [2022-01-31 23:58:57,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:57,086 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 377 transitions. [2022-01-31 23:58:57,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-31 23:58:57,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:57,087 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:57,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 23:58:57,087 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:57,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:57,087 INFO L85 PathProgramCache]: Analyzing trace with hash 16034624, now seen corresponding path program 1 times [2022-01-31 23:58:57,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:57,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776957266] [2022-01-31 23:58:57,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:57,098 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:57,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:57,104 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:57,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:57,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:57,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:57,208 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:57,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776957266] [2022-01-31 23:58:57,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [776957266] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:57,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:57,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:57,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235478309] [2022-01-31 23:58:57,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:57,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:57,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:57,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:57,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:57,209 INFO L87 Difference]: Start difference. First operand 253 states and 377 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:59,219 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 [] [2022-01-31 23:58:59,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:59,774 INFO L93 Difference]: Finished difference Result 574 states and 865 transitions. [2022-01-31 23:58:59,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:59,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-01-31 23:58:59,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:59,776 INFO L225 Difference]: With dead ends: 574 [2022-01-31 23:58:59,776 INFO L226 Difference]: Without dead ends: 347 [2022-01-31 23:58:59,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:59,777 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 71 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:59,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 465 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 521 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 23:58:59,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-01-31 23:58:59,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 296. [2022-01-31 23:58:59,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 291 states have (on average 1.5360824742268042) internal successors, (447), 291 states have internal predecessors, (447), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:59,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 451 transitions. [2022-01-31 23:58:59,792 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 451 transitions. Word has length 92 [2022-01-31 23:58:59,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:59,792 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 451 transitions. [2022-01-31 23:58:59,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:59,792 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 451 transitions. [2022-01-31 23:58:59,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-31 23:58:59,793 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:59,793 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:59,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 23:58:59,794 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:59,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:59,794 INFO L85 PathProgramCache]: Analyzing trace with hash -2033353218, now seen corresponding path program 1 times [2022-01-31 23:58:59,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:59,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835024297] [2022-01-31 23:58:59,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:59,806 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:59,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:59,812 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:59,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:59,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:59,966 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:59,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835024297] [2022-01-31 23:58:59,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [835024297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:59,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:59,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:59,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20184488] [2022-01-31 23:58:59,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:59,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:59,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:59,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:59,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:59,968 INFO L87 Difference]: Start difference. First operand 296 states and 451 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:01,979 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 [] [2022-01-31 23:59:02,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:02,398 INFO L93 Difference]: Finished difference Result 614 states and 941 transitions. [2022-01-31 23:59:02,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:02,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-01-31 23:59:02,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:02,400 INFO L225 Difference]: With dead ends: 614 [2022-01-31 23:59:02,400 INFO L226 Difference]: Without dead ends: 344 [2022-01-31 23:59:02,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:02,402 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 35 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:02,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 571 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:02,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-01-31 23:59:02,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 320. [2022-01-31 23:59:02,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 1.5396825396825398) internal successors, (485), 315 states have internal predecessors, (485), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:02,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 489 transitions. [2022-01-31 23:59:02,417 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 489 transitions. Word has length 92 [2022-01-31 23:59:02,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:02,417 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 489 transitions. [2022-01-31 23:59:02,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:02,417 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 489 transitions. [2022-01-31 23:59:02,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-31 23:59:02,418 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:02,419 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:02,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 23:59:02,419 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:02,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:02,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1582990547, now seen corresponding path program 1 times [2022-01-31 23:59:02,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:02,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278233754] [2022-01-31 23:59:02,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:02,440 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:02,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:02,446 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:02,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:02,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:02,561 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:02,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278233754] [2022-01-31 23:59:02,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [278233754] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:02,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:02,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:02,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942142951] [2022-01-31 23:59:02,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:02,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:02,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:02,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:02,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:02,563 INFO L87 Difference]: Start difference. First operand 320 states and 489 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:04,579 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 [] [2022-01-31 23:59:05,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:05,021 INFO L93 Difference]: Finished difference Result 701 states and 1083 transitions. [2022-01-31 23:59:05,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:05,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-01-31 23:59:05,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:05,023 INFO L225 Difference]: With dead ends: 701 [2022-01-31 23:59:05,023 INFO L226 Difference]: Without dead ends: 407 [2022-01-31 23:59:05,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:05,025 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 130 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:05,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 330 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 448 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:05,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-01-31 23:59:05,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 320. [2022-01-31 23:59:05,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 1.5206349206349206) internal successors, (479), 315 states have internal predecessors, (479), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:05,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 483 transitions. [2022-01-31 23:59:05,040 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 483 transitions. Word has length 97 [2022-01-31 23:59:05,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:05,040 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 483 transitions. [2022-01-31 23:59:05,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:05,041 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 483 transitions. [2022-01-31 23:59:05,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-31 23:59:05,042 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:05,042 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:05,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 23:59:05,042 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:05,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:05,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1319104142, now seen corresponding path program 1 times [2022-01-31 23:59:05,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:05,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434241820] [2022-01-31 23:59:05,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:05,060 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:05,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:05,067 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:05,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:05,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:05,174 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:05,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [434241820] [2022-01-31 23:59:05,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [434241820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:05,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:05,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:05,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397756830] [2022-01-31 23:59:05,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:05,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:05,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:05,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:05,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:05,175 INFO L87 Difference]: Start difference. First operand 320 states and 483 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:07,185 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 [] [2022-01-31 23:59:07,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:07,625 INFO L93 Difference]: Finished difference Result 655 states and 990 transitions. [2022-01-31 23:59:07,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:07,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2022-01-31 23:59:07,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:07,626 INFO L225 Difference]: With dead ends: 655 [2022-01-31 23:59:07,626 INFO L226 Difference]: Without dead ends: 361 [2022-01-31 23:59:07,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:07,628 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 88 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:07,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 451 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:07,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-01-31 23:59:07,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 320. [2022-01-31 23:59:07,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 1.5174603174603174) internal successors, (478), 315 states have internal predecessors, (478), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:07,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 482 transitions. [2022-01-31 23:59:07,643 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 482 transitions. Word has length 105 [2022-01-31 23:59:07,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:07,643 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 482 transitions. [2022-01-31 23:59:07,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:07,643 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 482 transitions. [2022-01-31 23:59:07,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-31 23:59:07,644 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:07,644 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:07,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 23:59:07,645 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:07,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:07,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1714945904, now seen corresponding path program 1 times [2022-01-31 23:59:07,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:07,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863881304] [2022-01-31 23:59:07,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:07,678 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:07,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:07,684 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:07,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:07,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:07,789 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:07,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863881304] [2022-01-31 23:59:07,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [863881304] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:07,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:07,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:07,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551879982] [2022-01-31 23:59:07,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:07,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:07,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:07,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:07,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:07,790 INFO L87 Difference]: Start difference. First operand 320 states and 482 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:09,807 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 [] [2022-01-31 23:59:10,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:10,333 INFO L93 Difference]: Finished difference Result 701 states and 1069 transitions. [2022-01-31 23:59:10,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:10,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2022-01-31 23:59:10,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:10,337 INFO L225 Difference]: With dead ends: 701 [2022-01-31 23:59:10,337 INFO L226 Difference]: Without dead ends: 407 [2022-01-31 23:59:10,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:10,338 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 124 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:10,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 330 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 23:59:10,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-01-31 23:59:10,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 321. [2022-01-31 23:59:10,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 316 states have (on average 1.509493670886076) internal successors, (477), 316 states have internal predecessors, (477), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:10,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 481 transitions. [2022-01-31 23:59:10,355 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 481 transitions. Word has length 105 [2022-01-31 23:59:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:10,355 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 481 transitions. [2022-01-31 23:59:10,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:10,356 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 481 transitions. [2022-01-31 23:59:10,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-31 23:59:10,357 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:10,357 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:10,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 23:59:10,357 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:10,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:10,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1767797833, now seen corresponding path program 1 times [2022-01-31 23:59:10,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:10,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448126015] [2022-01-31 23:59:10,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:10,375 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:10,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:10,382 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:10,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:10,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:10,483 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:10,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448126015] [2022-01-31 23:59:10,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [448126015] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:10,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:10,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:10,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551492759] [2022-01-31 23:59:10,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:10,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:10,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:10,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:10,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:10,485 INFO L87 Difference]: Start difference. First operand 321 states and 481 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) [2022-01-31 23:59:12,494 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 [] [2022-01-31 23:59:12,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:12,938 INFO L93 Difference]: Finished difference Result 655 states and 984 transitions. [2022-01-31 23:59:12,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:12,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-01-31 23:59:12,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:12,939 INFO L225 Difference]: With dead ends: 655 [2022-01-31 23:59:12,939 INFO L226 Difference]: Without dead ends: 360 [2022-01-31 23:59:12,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:12,944 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 86 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:12,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 451 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:12,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-01-31 23:59:12,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 321. [2022-01-31 23:59:12,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 316 states have (on average 1.5063291139240507) internal successors, (476), 316 states have internal predecessors, (476), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:12,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 480 transitions. [2022-01-31 23:59:12,960 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 480 transitions. Word has length 106 [2022-01-31 23:59:12,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:12,960 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 480 transitions. [2022-01-31 23:59:12,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:12,960 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 480 transitions. [2022-01-31 23:59:12,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-31 23:59:12,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:12,961 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:12,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 23:59:12,962 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:12,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:12,962 INFO L85 PathProgramCache]: Analyzing trace with hash 867497430, now seen corresponding path program 1 times [2022-01-31 23:59:12,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:12,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257977578] [2022-01-31 23:59:12,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:12,976 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:12,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:12,983 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:13,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:13,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:13,107 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:13,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257977578] [2022-01-31 23:59:13,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1257977578] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:13,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:13,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:13,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799051644] [2022-01-31 23:59:13,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:13,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:13,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:13,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:13,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:13,108 INFO L87 Difference]: Start difference. First operand 321 states and 480 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) [2022-01-31 23:59:15,124 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 [] [2022-01-31 23:59:15,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:15,551 INFO L93 Difference]: Finished difference Result 654 states and 981 transitions. [2022-01-31 23:59:15,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:15,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-01-31 23:59:15,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:15,553 INFO L225 Difference]: With dead ends: 654 [2022-01-31 23:59:15,553 INFO L226 Difference]: Without dead ends: 359 [2022-01-31 23:59:15,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:15,554 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 84 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:15,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 453 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:15,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2022-01-31 23:59:15,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 321. [2022-01-31 23:59:15,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 316 states have (on average 1.5031645569620253) internal successors, (475), 316 states have internal predecessors, (475), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:15,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 479 transitions. [2022-01-31 23:59:15,570 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 479 transitions. Word has length 106 [2022-01-31 23:59:15,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:15,570 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 479 transitions. [2022-01-31 23:59:15,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:15,570 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 479 transitions. [2022-01-31 23:59:15,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-31 23:59:15,571 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:15,571 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:15,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 23:59:15,572 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:15,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:15,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1334068747, now seen corresponding path program 1 times [2022-01-31 23:59:15,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:15,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440258756] [2022-01-31 23:59:15,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:15,590 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:15,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:15,608 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:15,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:15,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:15,719 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:15,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440258756] [2022-01-31 23:59:15,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [440258756] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:15,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:15,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:15,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192806617] [2022-01-31 23:59:15,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:15,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:15,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:15,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:15,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:15,720 INFO L87 Difference]: Start difference. First operand 321 states and 479 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) [2022-01-31 23:59:17,730 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 [] [2022-01-31 23:59:18,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:18,170 INFO L93 Difference]: Finished difference Result 702 states and 1061 transitions. [2022-01-31 23:59:18,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:18,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-01-31 23:59:18,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:18,172 INFO L225 Difference]: With dead ends: 702 [2022-01-31 23:59:18,172 INFO L226 Difference]: Without dead ends: 407 [2022-01-31 23:59:18,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:18,173 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 123 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:18,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 336 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:18,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-01-31 23:59:18,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 322. [2022-01-31 23:59:18,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 317 states have (on average 1.4952681388012619) internal successors, (474), 317 states have internal predecessors, (474), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:18,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 478 transitions. [2022-01-31 23:59:18,189 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 478 transitions. Word has length 106 [2022-01-31 23:59:18,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:18,190 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 478 transitions. [2022-01-31 23:59:18,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:18,190 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 478 transitions. [2022-01-31 23:59:18,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-31 23:59:18,191 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:18,191 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:18,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 23:59:18,191 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:18,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:18,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1301226516, now seen corresponding path program 1 times [2022-01-31 23:59:18,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:18,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [789798371] [2022-01-31 23:59:18,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:18,205 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:18,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:18,212 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:18,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:18,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:18,314 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:18,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [789798371] [2022-01-31 23:59:18,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [789798371] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:18,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:18,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:18,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361682403] [2022-01-31 23:59:18,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:18,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:18,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:18,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:18,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:18,317 INFO L87 Difference]: Start difference. First operand 322 states and 478 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) [2022-01-31 23:59:19,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:21,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:24,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:26,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:26,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:26,503 INFO L93 Difference]: Finished difference Result 702 states and 1056 transitions. [2022-01-31 23:59:26,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:26,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-01-31 23:59:26,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:26,505 INFO L225 Difference]: With dead ends: 702 [2022-01-31 23:59:26,505 INFO L226 Difference]: Without dead ends: 406 [2022-01-31 23:59:26,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:26,506 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 121 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:26,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 338 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 450 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-01-31 23:59:26,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2022-01-31 23:59:26,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 323. [2022-01-31 23:59:26,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 318 states have (on average 1.4874213836477987) internal successors, (473), 318 states have internal predecessors, (473), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:26,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 477 transitions. [2022-01-31 23:59:26,522 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 477 transitions. Word has length 106 [2022-01-31 23:59:26,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:26,522 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 477 transitions. [2022-01-31 23:59:26,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:26,523 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 477 transitions. [2022-01-31 23:59:26,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-31 23:59:26,523 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:26,524 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:26,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 23:59:26,524 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:26,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:26,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1993787661, now seen corresponding path program 1 times [2022-01-31 23:59:26,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:26,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1228011356] [2022-01-31 23:59:26,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:26,544 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:26,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:26,551 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:26,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:26,649 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:26,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1228011356] [2022-01-31 23:59:26,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1228011356] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:26,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:26,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:26,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074536860] [2022-01-31 23:59:26,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:26,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:26,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:26,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:26,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:26,651 INFO L87 Difference]: Start difference. First operand 323 states and 477 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:28,670 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 [] [2022-01-31 23:59:29,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:29,080 INFO L93 Difference]: Finished difference Result 703 states and 1052 transitions. [2022-01-31 23:59:29,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:29,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-01-31 23:59:29,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:29,082 INFO L225 Difference]: With dead ends: 703 [2022-01-31 23:59:29,083 INFO L226 Difference]: Without dead ends: 406 [2022-01-31 23:59:29,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:29,084 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 114 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:29,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 348 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:29,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2022-01-31 23:59:29,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 329. [2022-01-31 23:59:29,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 324 states have (on average 1.4876543209876543) internal successors, (482), 324 states have internal predecessors, (482), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:29,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 486 transitions. [2022-01-31 23:59:29,101 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 486 transitions. Word has length 114 [2022-01-31 23:59:29,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:29,101 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 486 transitions. [2022-01-31 23:59:29,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:29,101 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 486 transitions. [2022-01-31 23:59:29,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-31 23:59:29,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:29,102 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:29,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 23:59:29,103 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:29,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:29,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1569212209, now seen corresponding path program 1 times [2022-01-31 23:59:29,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:29,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [269587244] [2022-01-31 23:59:29,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:29,139 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:29,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:29,147 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:29,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:29,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:29,246 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:29,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [269587244] [2022-01-31 23:59:29,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [269587244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:29,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:29,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:59:29,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425824716] [2022-01-31 23:59:29,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:29,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:59:29,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:29,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:59:29,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:59:29,248 INFO L87 Difference]: Start difference. First operand 329 states and 486 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:31,259 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 [] [2022-01-31 23:59:31,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:31,568 INFO L93 Difference]: Finished difference Result 906 states and 1359 transitions. [2022-01-31 23:59:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 23:59:31,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-01-31 23:59:31,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:31,571 INFO L225 Difference]: With dead ends: 906 [2022-01-31 23:59:31,571 INFO L226 Difference]: Without dead ends: 603 [2022-01-31 23:59:31,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:59:31,573 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 129 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:31,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 427 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 251 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:59:31,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-01-31 23:59:31,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2022-01-31 23:59:31,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 598 states have (on average 1.4966555183946488) internal successors, (895), 598 states have internal predecessors, (895), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:31,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 899 transitions. [2022-01-31 23:59:31,603 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 899 transitions. Word has length 114 [2022-01-31 23:59:31,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:31,603 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 899 transitions. [2022-01-31 23:59:31,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:31,603 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 899 transitions. [2022-01-31 23:59:31,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-31 23:59:31,605 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:31,605 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:31,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 23:59:31,605 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:31,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:31,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1771814929, now seen corresponding path program 1 times [2022-01-31 23:59:31,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:31,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392186862] [2022-01-31 23:59:31,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:31,624 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:31,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:31,632 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:31,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:31,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:31,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:31,740 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:31,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392186862] [2022-01-31 23:59:31,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [392186862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:31,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:31,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:59:31,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718800163] [2022-01-31 23:59:31,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:31,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:59:31,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:31,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:59:31,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:59:31,742 INFO L87 Difference]: Start difference. First operand 603 states and 899 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 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) [2022-01-31 23:59:33,751 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 [] [2022-01-31 23:59:34,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:34,042 INFO L93 Difference]: Finished difference Result 1207 states and 1805 transitions. [2022-01-31 23:59:34,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 23:59:34,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 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 114 [2022-01-31 23:59:34,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:34,050 INFO L225 Difference]: With dead ends: 1207 [2022-01-31 23:59:34,050 INFO L226 Difference]: Without dead ends: 630 [2022-01-31 23:59:34,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:59:34,052 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:34,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 407 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:59:34,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-01-31 23:59:34,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 630. [2022-01-31 23:59:34,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 625 states have (on average 1.488) internal successors, (930), 625 states have internal predecessors, (930), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:34,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 934 transitions. [2022-01-31 23:59:34,084 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 934 transitions. Word has length 114 [2022-01-31 23:59:34,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:34,085 INFO L470 AbstractCegarLoop]: Abstraction has 630 states and 934 transitions. [2022-01-31 23:59:34,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 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) [2022-01-31 23:59:34,085 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 934 transitions. [2022-01-31 23:59:34,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-31 23:59:34,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:34,086 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:34,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 23:59:34,087 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:34,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:34,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1528458669, now seen corresponding path program 1 times [2022-01-31 23:59:34,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:34,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1996862913] [2022-01-31 23:59:34,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:34,106 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:34,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:34,115 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:34,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:34,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:34,199 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:34,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1996862913] [2022-01-31 23:59:34,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1996862913] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:34,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:34,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:59:34,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334670255] [2022-01-31 23:59:34,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:34,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:59:34,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:34,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:59:34,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:59:34,200 INFO L87 Difference]: Start difference. First operand 630 states and 934 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:36,217 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 [] [2022-01-31 23:59:36,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:36,462 INFO L93 Difference]: Finished difference Result 1236 states and 1841 transitions. [2022-01-31 23:59:36,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 23:59:36,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-01-31 23:59:36,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:36,464 INFO L225 Difference]: With dead ends: 1236 [2022-01-31 23:59:36,465 INFO L226 Difference]: Without dead ends: 632 [2022-01-31 23:59:36,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:59:36,468 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:36,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 386 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-01-31 23:59:36,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-01-31 23:59:36,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 632. [2022-01-31 23:59:36,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 627 states have (on average 1.4864433811802233) internal successors, (932), 627 states have internal predecessors, (932), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:36,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 936 transitions. [2022-01-31 23:59:36,499 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 936 transitions. Word has length 114 [2022-01-31 23:59:36,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:36,499 INFO L470 AbstractCegarLoop]: Abstraction has 632 states and 936 transitions. [2022-01-31 23:59:36,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:36,499 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 936 transitions. [2022-01-31 23:59:36,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-31 23:59:36,500 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:36,501 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:36,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 23:59:36,501 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:36,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:36,501 INFO L85 PathProgramCache]: Analyzing trace with hash 716472108, now seen corresponding path program 1 times [2022-01-31 23:59:36,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:36,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [979143104] [2022-01-31 23:59:36,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:36,532 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:36,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:36,542 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:36,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:36,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:36,972 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:36,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [979143104] [2022-01-31 23:59:36,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [979143104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:36,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:36,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-31 23:59:36,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487531150] [2022-01-31 23:59:36,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:36,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 23:59:36,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:36,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 23:59:36,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-31 23:59:36,973 INFO L87 Difference]: Start difference. First operand 632 states and 936 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:38,986 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 [] [2022-01-31 23:59:39,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:39,557 INFO L93 Difference]: Finished difference Result 1257 states and 1864 transitions. [2022-01-31 23:59:39,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 23:59:39,557 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-01-31 23:59:39,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:39,560 INFO L225 Difference]: With dead ends: 1257 [2022-01-31 23:59:39,561 INFO L226 Difference]: Without dead ends: 632 [2022-01-31 23:59:39,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-31 23:59:39,562 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 7 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:39,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 792 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 23:59:39,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-01-31 23:59:39,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 632. [2022-01-31 23:59:39,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 627 states have (on average 1.4848484848484849) internal successors, (931), 627 states have internal predecessors, (931), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:39,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 935 transitions. [2022-01-31 23:59:39,593 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 935 transitions. Word has length 132 [2022-01-31 23:59:39,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:39,593 INFO L470 AbstractCegarLoop]: Abstraction has 632 states and 935 transitions. [2022-01-31 23:59:39,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:39,593 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 935 transitions. [2022-01-31 23:59:39,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-31 23:59:39,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:39,595 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:39,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 23:59:39,595 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:39,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:39,596 INFO L85 PathProgramCache]: Analyzing trace with hash 286813802, now seen corresponding path program 1 times [2022-01-31 23:59:39,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:39,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758519315] [2022-01-31 23:59:39,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:39,625 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:39,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:39,634 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:59:39,986 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 23:59:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:59:40,290 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 23:59:40,290 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 23:59:40,296 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 23:59:40,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 23:59:40,300 INFO L732 BasicCegarLoop]: Path program 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] [2022-01-31 23:59:40,302 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 23:59:40,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 11:59:40 BoogieIcfgContainer [2022-01-31 23:59:40,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 23:59:40,353 INFO L158 Benchmark]: Toolchain (without parser) took 108502.91ms. Allocated memory was 189.8MB in the beginning and 256.9MB in the end (delta: 67.1MB). Free memory was 131.7MB in the beginning and 135.2MB in the end (delta: -3.5MB). Peak memory consumption was 137.5MB. Max. memory is 8.0GB. [2022-01-31 23:59:40,353 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 189.8MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:59:40,353 INFO L158 Benchmark]: CACSL2BoogieTranslator took 631.04ms. Allocated memory was 189.8MB in the beginning and 256.9MB in the end (delta: 67.1MB). Free memory was 131.4MB in the beginning and 208.3MB in the end (delta: -76.9MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. [2022-01-31 23:59:40,353 INFO L158 Benchmark]: Boogie Preprocessor took 103.71ms. Allocated memory is still 256.9MB. Free memory was 208.3MB in the beginning and 201.0MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-01-31 23:59:40,354 INFO L158 Benchmark]: RCFGBuilder took 3010.57ms. Allocated memory is still 256.9MB. Free memory was 201.0MB in the beginning and 121.8MB in the end (delta: 79.2MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. [2022-01-31 23:59:40,354 INFO L158 Benchmark]: TraceAbstraction took 104752.88ms. Allocated memory is still 256.9MB. Free memory was 121.3MB in the beginning and 135.2MB in the end (delta: -13.9MB). Peak memory consumption was 59.5MB. Max. memory is 8.0GB. [2022-01-31 23:59:40,354 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 189.8MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 631.04ms. Allocated memory was 189.8MB in the beginning and 256.9MB in the end (delta: 67.1MB). Free memory was 131.4MB in the beginning and 208.3MB in the end (delta: -76.9MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 103.71ms. Allocated memory is still 256.9MB. Free memory was 208.3MB in the beginning and 201.0MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 3010.57ms. Allocated memory is still 256.9MB. Free memory was 201.0MB in the beginning and 121.8MB in the end (delta: 79.2MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. * TraceAbstraction took 104752.88ms. Allocated memory is still 256.9MB. Free memory was 121.3MB in the beginning and 135.2MB in the end (delta: -13.9MB). Peak memory consumption was 59.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1733]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1152. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1086] s->state = 8464 [L1088] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1089] s->options = __VERIFIER_nondet_ulong() [L1090] s->verify_mode = __VERIFIER_nondet_int() [L1091] EXPR s->session [L1091] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1096] COND FALSE !(__VERIFIER_nondet_int()) [L1102] s->cert = malloc(sizeof(struct cert_st)) [L1103] EXPR s->cert [L1103] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1106] CALL ssl3_accept(s) [L1112] BUF_MEM *buf ; [L1113] unsigned long l ; [L1114] unsigned long Time ; [L1115] unsigned long tmp ; [L1116] void (*cb)() ; [L1117] long num1 ; [L1118] int ret ; [L1119] int new_state ; [L1120] int state ; [L1121] int skip ; [L1122] int got_new_session ; [L1123] int tmp___1 = __VERIFIER_nondet_int() ; [L1124] int tmp___2 = __VERIFIER_nondet_int() ; [L1125] int tmp___3 = __VERIFIER_nondet_int() ; [L1126] int tmp___4 = __VERIFIER_nondet_int() ; [L1127] int tmp___5 = __VERIFIER_nondet_int() ; [L1128] int tmp___6 = __VERIFIER_nondet_int() ; [L1129] int tmp___7 ; [L1130] long tmp___8 = __VERIFIER_nondet_long() ; [L1131] int tmp___9 = __VERIFIER_nondet_int() ; [L1132] int tmp___10 = __VERIFIER_nondet_int() ; [L1133] int blastFlag ; [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] tmp = __VERIFIER_nondet_int() [L1141] Time = tmp [L1142] cb = (void (*)())((void *)0) [L1143] ret = -1 [L1144] skip = 0 [L1145] got_new_session = 0 [L1146] EXPR s->info_callback [L1146] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1147] EXPR s->info_callback [L1147] cb = s->info_callback [L1151] EXPR s->in_handshake [L1151] s->in_handshake += 1 [L1152] COND FALSE !(tmp___1 & 12288) [L1161] EXPR s->cert [L1161] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND TRUE s->state == 8464 [L1354] s->shutdown = 0 [L1355] ret = __VERIFIER_nondet_int() [L1356] COND TRUE blastFlag == 0 [L1357] blastFlag = 1 [L1361] COND FALSE !(ret <= 0) [L1366] got_new_session = 1 [L1367] s->state = 8496 [L1368] s->init_num = 0 [L1692] EXPR s->s3 [L1692] EXPR (s->s3)->tmp.reuse_message [L1692] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1721] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND TRUE s->state == 8496 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND TRUE blastFlag == 1 [L1374] blastFlag = 2 [L1378] COND FALSE !(ret <= 0) [L1383] s->hit [L1383] COND TRUE s->hit [L1384] s->state = 8656 [L1388] s->init_num = 0 [L1692] EXPR s->s3 [L1692] EXPR (s->s3)->tmp.reuse_message [L1692] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1721] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND TRUE s->state == 8656 [L1581] EXPR s->session [L1581] EXPR s->s3 [L1581] EXPR (s->s3)->tmp.new_cipher [L1581] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1582] COND FALSE !(! tmp___9) [L1588] ret = __VERIFIER_nondet_int() [L1589] COND TRUE blastFlag == 2 [L1590] blastFlag = 4 [L1598] COND FALSE !(ret <= 0) [L1603] s->state = 8672 [L1604] s->init_num = 0 [L1605] COND FALSE !(! tmp___10) [L1692] EXPR s->s3 [L1692] EXPR (s->s3)->tmp.reuse_message [L1692] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1721] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND FALSE !(s->state == 8656) [L1263] EXPR s->state [L1263] COND FALSE !(s->state == 8657) [L1266] EXPR s->state [L1266] COND TRUE s->state == 8672 [L1614] ret = __VERIFIER_nondet_int() [L1615] COND TRUE blastFlag == 4 [L1733] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 184 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 104.7s, OverallIterations: 32, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 98.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 39 mSolverCounterUnknown, 2070 SdHoareTripleChecker+Valid, 97.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2070 mSDsluCounter, 13567 SdHoareTripleChecker+Invalid, 93.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8372 mSDsCounter, 768 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12564 IncrementalHoareTripleChecker+Invalid, 13371 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 768 mSolverCounterUnsat, 5195 mSDtfsCounter, 12564 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 238 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=632occurred in iteration=30, InterpolantAutomatonStates: 156, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 31 MinimizatonAttempts, 1250 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-31 23:59:40,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...