/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.06.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:58:54,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:58:54,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:58:54,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 23:58:54,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 23:58:54,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 23:58:54,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 23:58:54,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 23:58:54,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 23:58:54,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 23:58:54,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 23:58:54,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 23:58:54,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:58:54,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:58:54,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:58:54,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:58:54,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:58:54,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:58:54,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:58:54,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:58:54,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:58:54,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:58:54,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:58:54,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:58:54,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 23:58:54,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 23:58:54,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 23:58:54,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 23:58:54,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 23:58:54,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 23:58:54,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 23:58:54,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 23:58:54,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 23:58:54,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 23:58:54,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 23:58:54,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 23:58:54,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 23:58:54,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 23:58:54,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:58:54,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:58:54,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:58:54,826 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 23:58:54,841 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:58:54,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:58:54,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:58:54,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:58:54,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:58:54,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:58:54,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:58:54,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:58:54,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:58:54,843 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:58:54,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:58:54,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:58:54,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:58:54,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:58:54,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:58:54,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:58:54,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:58:54,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:58:54,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:58:54,845 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-01-31 23:58:54,845 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:58:55,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:58:55,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:58:55,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:58:55,098 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:58:55,100 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:58:55,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-2.c [2022-01-31 23:58:55,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22a10d61c/9d1a248678824a8d8578d5ba511873d9/FLAGb662872ce [2022-01-31 23:58:55,625 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:58:55,625 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-2.c [2022-01-31 23:58:55,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22a10d61c/9d1a248678824a8d8578d5ba511873d9/FLAGb662872ce [2022-01-31 23:58:55,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22a10d61c/9d1a248678824a8d8578d5ba511873d9 [2022-01-31 23:58:55,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:58:55,949 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:58:55,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:58:55,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:58:55,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:58:55,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:58:55" (1/1) ... [2022-01-31 23:58:55,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@295b8155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:58:55, skipping insertion in model container [2022-01-31 23:58:55,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:58:55" (1/1) ... [2022-01-31 23:58:55,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:58:56,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:58:56,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-2.c[78808,78821] [2022-01-31 23:58:56,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:58:56,375 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:58:56,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-2.c[78808,78821] [2022-01-31 23:58:56,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:58:56,556 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:58:56,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:58:56 WrapperNode [2022-01-31 23:58:56,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:58:56,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:58:56,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:58:56,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:58:56,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:58:56" (1/1) ... [2022-01-31 23:58:56,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:58:56" (1/1) ... [2022-01-31 23:58:56,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:58:56" (1/1) ... [2022-01-31 23:58:56,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:58:56" (1/1) ... [2022-01-31 23:58:56,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:58:56" (1/1) ... [2022-01-31 23:58:56,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:58:56" (1/1) ... [2022-01-31 23:58:56,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:58:56" (1/1) ... [2022-01-31 23:58:56,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:58:56,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:58:56,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:58:56,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:58:56,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:58:56" (1/1) ... [2022-01-31 23:58:56,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:58:56,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:58:56,749 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 23:58:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:58:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:58:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:58:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-01-31 23:58:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-01-31 23:58:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:58:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 23:58:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-01-31 23:58:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-01-31 23:58:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-01-31 23:58:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:58:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:58:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:58:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:58:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 23:58:56,771 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 23:58:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 23:58:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 23:58:56,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 23:58:56,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-01-31 23:58:56,795 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-01-31 23:58:56,795 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-01-31 23:58:56,795 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-01-31 23:58:56,795 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 23:58:56,795 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-01-31 23:58:56,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-01-31 23:58:56,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-31 23:58:56,796 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:58:56,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 23:58:56,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:58:56,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-31 23:58:56,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:58:56,796 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-01-31 23:58:56,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-01-31 23:58:56,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:58:56,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:58:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:58:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-01-31 23:58:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-01-31 23:58:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-01-31 23:58:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-01-31 23:58:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:58:56,976 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:58:56,979 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:58:57,963 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 23:58:58,400 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-01-31 23:58:58,400 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-01-31 23:58:58,411 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:58:58,419 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:58:58,419 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 23:58:58,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:58:58 BoogieIcfgContainer [2022-01-31 23:58:58,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:58:58,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:58:58,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:58:58,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:58:58,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:58:55" (1/3) ... [2022-01-31 23:58:58,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d8b3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:58:58, skipping insertion in model container [2022-01-31 23:58:58,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:58:56" (2/3) ... [2022-01-31 23:58:58,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d8b3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:58:58, skipping insertion in model container [2022-01-31 23:58:58,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:58:58" (3/3) ... [2022-01-31 23:58:58,428 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.06.i.cil-2.c [2022-01-31 23:58:58,433 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:58:58,433 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:58:58,479 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:58:58,485 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 23:58:58,485 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:58:58,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 162 states have (on average 1.728395061728395) internal successors, (280), 163 states have internal predecessors, (280), 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 23:58:58,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-31 23:58:58,512 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:58,513 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 23:58:58,513 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:58,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:58,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1044787868, now seen corresponding path program 1 times [2022-01-31 23:58:58,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:58,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896474596] [2022-01-31 23:58:58,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:58,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:58,587 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:59,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:59,137 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 23:58:59,138 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:59,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896474596] [2022-01-31 23:58:59,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [896474596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:59,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:59,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:59,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869309647] [2022-01-31 23:58:59,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:59,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:59,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:59,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:59,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:59,180 INFO L87 Difference]: Start difference. First operand has 170 states, 162 states have (on average 1.728395061728395) internal successors, (280), 163 states have internal predecessors, (280), 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 23:59:02,465 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 23:59:03,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:03,338 INFO L93 Difference]: Finished difference Result 464 states and 794 transitions. [2022-01-31 23:59:03,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:03,341 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 23:59:03,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:03,351 INFO L225 Difference]: With dead ends: 464 [2022-01-31 23:59:03,351 INFO L226 Difference]: Without dead ends: 283 [2022-01-31 23:59:03,355 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 23:59:03,358 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 174 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:03,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 535 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 559 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 23:59:03,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-01-31 23:59:03,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 194. [2022-01-31 23:59:03,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 189 states have (on average 1.6296296296296295) internal successors, (308), 189 states have internal predecessors, (308), 3 states have call successors, (3), 3 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 23:59:03,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 312 transitions. [2022-01-31 23:59:03,409 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 312 transitions. Word has length 52 [2022-01-31 23:59:03,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:03,410 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 312 transitions. [2022-01-31 23:59:03,410 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 23:59:03,410 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 312 transitions. [2022-01-31 23:59:03,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-31 23:59:03,412 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:03,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:03,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:59:03,413 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:03,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:03,413 INFO L85 PathProgramCache]: Analyzing trace with hash -125938628, now seen corresponding path program 1 times [2022-01-31 23:59:03,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:03,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022381702] [2022-01-31 23:59:03,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:03,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:03,417 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:03,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:03,574 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 23:59:03,575 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:03,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022381702] [2022-01-31 23:59:03,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2022381702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:03,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:03,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:03,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707873898] [2022-01-31 23:59:03,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:03,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:03,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:03,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:03,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:03,579 INFO L87 Difference]: Start difference. First operand 194 states and 312 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:05,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:07,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:09,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:10,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:11,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:11,081 INFO L93 Difference]: Finished difference Result 501 states and 809 transitions. [2022-01-31 23:59:11,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:11,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-01-31 23:59:11,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:11,084 INFO L225 Difference]: With dead ends: 501 [2022-01-31 23:59:11,084 INFO L226 Difference]: Without dead ends: 322 [2022-01-31 23:59:11,113 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 23:59:11,114 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 141 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:11,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 446 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-01-31 23:59:11,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-01-31 23:59:11,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 234. [2022-01-31 23:59:11,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 229 states have (on average 1.668122270742358) internal successors, (382), 229 states have internal predecessors, (382), 3 states have call successors, (3), 3 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 23:59:11,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 386 transitions. [2022-01-31 23:59:11,146 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 386 transitions. Word has length 53 [2022-01-31 23:59:11,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:11,147 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 386 transitions. [2022-01-31 23:59:11,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:11,147 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 386 transitions. [2022-01-31 23:59:11,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-31 23:59:11,150 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:11,150 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:11,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:59:11,150 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:11,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:11,151 INFO L85 PathProgramCache]: Analyzing trace with hash 957181827, now seen corresponding path program 1 times [2022-01-31 23:59:11,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:11,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133417609] [2022-01-31 23:59:11,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:11,181 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:11,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:11,184 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:11,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:11,384 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 23:59:11,384 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:11,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133417609] [2022-01-31 23:59:11,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1133417609] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:11,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:11,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:11,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39238505] [2022-01-31 23:59:11,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:11,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:11,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:11,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:11,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:11,386 INFO L87 Difference]: Start difference. First operand 234 states and 386 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 23:59:14,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:16,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:16,261 INFO L93 Difference]: Finished difference Result 481 states and 794 transitions. [2022-01-31 23:59:16,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:16,261 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 81 [2022-01-31 23:59:16,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:16,263 INFO L225 Difference]: With dead ends: 481 [2022-01-31 23:59:16,263 INFO L226 Difference]: Without dead ends: 262 [2022-01-31 23:59:16,264 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 23:59:16,265 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 22 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:16,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 553 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-01-31 23:59:16,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-01-31 23:59:16,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 245. [2022-01-31 23:59:16,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 240 states have (on average 1.6708333333333334) internal successors, (401), 240 states have internal predecessors, (401), 3 states have call successors, (3), 3 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 23:59:16,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 405 transitions. [2022-01-31 23:59:16,282 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 405 transitions. Word has length 81 [2022-01-31 23:59:16,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:16,283 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 405 transitions. [2022-01-31 23:59:16,283 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 23:59:16,283 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 405 transitions. [2022-01-31 23:59:16,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-31 23:59:16,285 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:16,286 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:16,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 23:59:16,286 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:16,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:16,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1133534583, now seen corresponding path program 1 times [2022-01-31 23:59:16,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:16,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43428902] [2022-01-31 23:59:16,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:16,302 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:16,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:16,306 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:16,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:16,475 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 23:59:16,476 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:16,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43428902] [2022-01-31 23:59:16,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [43428902] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:16,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:16,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:16,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370939201] [2022-01-31 23:59:16,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:16,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:16,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:16,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:16,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:16,480 INFO L87 Difference]: Start difference. First operand 245 states and 405 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 23:59:18,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:20,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:21,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:21,709 INFO L93 Difference]: Finished difference Result 481 states and 793 transitions. [2022-01-31 23:59:21,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:21,709 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 94 [2022-01-31 23:59:21,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:21,711 INFO L225 Difference]: With dead ends: 481 [2022-01-31 23:59:21,711 INFO L226 Difference]: Without dead ends: 262 [2022-01-31 23:59:21,712 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 23:59:21,713 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 24 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:21,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 555 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-01-31 23:59:21,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-01-31 23:59:21,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 245. [2022-01-31 23:59:21,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 240 states have (on average 1.6666666666666667) internal successors, (400), 240 states have internal predecessors, (400), 3 states have call successors, (3), 3 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 23:59:21,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 404 transitions. [2022-01-31 23:59:21,728 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 404 transitions. Word has length 94 [2022-01-31 23:59:21,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:21,728 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 404 transitions. [2022-01-31 23:59:21,728 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 23:59:21,728 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 404 transitions. [2022-01-31 23:59:21,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-31 23:59:21,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:21,731 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:21,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 23:59:21,731 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:21,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:21,732 INFO L85 PathProgramCache]: Analyzing trace with hash 211420935, now seen corresponding path program 1 times [2022-01-31 23:59:21,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:21,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365124352] [2022-01-31 23:59:21,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:21,775 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:21,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:21,782 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:21,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:21,930 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 23:59:21,930 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:21,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365124352] [2022-01-31 23:59:21,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1365124352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:21,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:21,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:21,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310768786] [2022-01-31 23:59:21,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:21,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:21,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:21,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:21,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:21,932 INFO L87 Difference]: Start difference. First operand 245 states and 404 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 23:59:23,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:25,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:26,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:28,648 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 23:59:29,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:29,169 INFO L93 Difference]: Finished difference Result 480 states and 791 transitions. [2022-01-31 23:59:29,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:29,170 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 95 [2022-01-31 23:59:29,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:29,171 INFO L225 Difference]: With dead ends: 480 [2022-01-31 23:59:29,171 INFO L226 Difference]: Without dead ends: 261 [2022-01-31 23:59:29,172 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 23:59:29,173 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 28 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:29,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 557 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 384 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-01-31 23:59:29,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-01-31 23:59:29,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 245. [2022-01-31 23:59:29,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 240 states have (on average 1.6625) internal successors, (399), 240 states have internal predecessors, (399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:29,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 403 transitions. [2022-01-31 23:59:29,185 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 403 transitions. Word has length 95 [2022-01-31 23:59:29,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:29,185 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 403 transitions. [2022-01-31 23:59:29,186 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 23:59:29,186 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 403 transitions. [2022-01-31 23:59:29,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-31 23:59:29,188 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:29,188 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:29,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 23:59:29,188 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:29,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:29,189 INFO L85 PathProgramCache]: Analyzing trace with hash -2146723853, now seen corresponding path program 1 times [2022-01-31 23:59:29,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:29,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [756300418] [2022-01-31 23:59:29,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:29,205 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:29,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:29,208 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:29,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:29,331 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 23:59:29,333 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:29,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [756300418] [2022-01-31 23:59:29,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [756300418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:29,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:29,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:29,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868045165] [2022-01-31 23:59:29,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:29,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:29,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:29,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:29,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:29,336 INFO L87 Difference]: Start difference. First operand 245 states and 403 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 23:59:31,346 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 23:59:31,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:31,973 INFO L93 Difference]: Finished difference Result 552 states and 899 transitions. [2022-01-31 23:59:31,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:31,974 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 95 [2022-01-31 23:59:31,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:31,976 INFO L225 Difference]: With dead ends: 552 [2022-01-31 23:59:31,976 INFO L226 Difference]: Without dead ends: 333 [2022-01-31 23:59:31,976 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 23:59:31,977 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 168 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:31,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 446 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 23:59:31,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-01-31 23:59:31,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 245. [2022-01-31 23:59:31,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 240 states have (on average 1.65) internal successors, (396), 240 states have internal predecessors, (396), 3 states have call successors, (3), 3 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 23:59:31,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 400 transitions. [2022-01-31 23:59:31,990 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 400 transitions. Word has length 95 [2022-01-31 23:59:31,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:31,990 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 400 transitions. [2022-01-31 23:59:31,990 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 23:59:31,990 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 400 transitions. [2022-01-31 23:59:32,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-31 23:59:32,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:32,013 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:32,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 23:59:32,014 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:32,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:32,014 INFO L85 PathProgramCache]: Analyzing trace with hash -150027876, now seen corresponding path program 1 times [2022-01-31 23:59:32,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:32,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286413677] [2022-01-31 23:59:32,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:32,031 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:32,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:32,034 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:32,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:32,135 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 23:59:32,136 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:32,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286413677] [2022-01-31 23:59:32,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1286413677] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:32,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:32,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:32,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893116026] [2022-01-31 23:59:32,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:32,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:32,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:32,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:32,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:32,137 INFO L87 Difference]: Start difference. First operand 245 states and 400 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 23:59:33,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:34,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:37,225 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 23:59:37,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:37,861 INFO L93 Difference]: Finished difference Result 552 states and 894 transitions. [2022-01-31 23:59:37,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:37,861 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 95 [2022-01-31 23:59:37,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:37,863 INFO L225 Difference]: With dead ends: 552 [2022-01-31 23:59:37,864 INFO L226 Difference]: Without dead ends: 333 [2022-01-31 23:59:37,864 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 23:59:37,865 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 162 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:37,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 446 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 516 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-01-31 23:59:37,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-01-31 23:59:37,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 245. [2022-01-31 23:59:37,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 240 states have (on average 1.6375) internal successors, (393), 240 states have internal predecessors, (393), 3 states have call successors, (3), 3 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 23:59:37,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 397 transitions. [2022-01-31 23:59:37,876 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 397 transitions. Word has length 95 [2022-01-31 23:59:37,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:37,877 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 397 transitions. [2022-01-31 23:59:37,877 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 23:59:37,877 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 397 transitions. [2022-01-31 23:59:37,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-31 23:59:37,878 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:37,878 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:37,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 23:59:37,878 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:37,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:37,879 INFO L85 PathProgramCache]: Analyzing trace with hash 518772539, now seen corresponding path program 1 times [2022-01-31 23:59:37,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:37,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104089973] [2022-01-31 23:59:37,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:37,892 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:37,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:37,896 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:38,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:38,014 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 23:59:38,015 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:38,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104089973] [2022-01-31 23:59:38,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1104089973] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:38,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:38,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:38,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663679800] [2022-01-31 23:59:38,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:38,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:38,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:38,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:38,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:38,019 INFO L87 Difference]: Start difference. First operand 245 states and 397 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 23:59:39,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:41,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:43,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:44,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:44,625 INFO L93 Difference]: Finished difference Result 551 states and 888 transitions. [2022-01-31 23:59:44,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:44,626 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 95 [2022-01-31 23:59:44,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:44,627 INFO L225 Difference]: With dead ends: 551 [2022-01-31 23:59:44,628 INFO L226 Difference]: Without dead ends: 332 [2022-01-31 23:59:44,628 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 23:59:44,629 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 160 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:44,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 448 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 514 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-01-31 23:59:44,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-01-31 23:59:44,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 245. [2022-01-31 23:59:44,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 240 states have (on average 1.625) internal successors, (390), 240 states have internal predecessors, (390), 3 states have call successors, (3), 3 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 23:59:44,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 394 transitions. [2022-01-31 23:59:44,641 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 394 transitions. Word has length 95 [2022-01-31 23:59:44,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:44,641 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 394 transitions. [2022-01-31 23:59:44,641 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 23:59:44,641 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 394 transitions. [2022-01-31 23:59:44,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-31 23:59:44,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:44,642 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:44,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 23:59:44,643 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:44,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:44,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1732356526, now seen corresponding path program 1 times [2022-01-31 23:59:44,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:44,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [436527617] [2022-01-31 23:59:44,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:44,658 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:44,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:44,662 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:44,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:44,765 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 23:59:44,765 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:44,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [436527617] [2022-01-31 23:59:44,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [436527617] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:44,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:44,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:44,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547348849] [2022-01-31 23:59:44,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:44,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:44,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:44,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:44,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:44,767 INFO L87 Difference]: Start difference. First operand 245 states and 394 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 23:59:46,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:48,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:50,071 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 23:59:50,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:50,519 INFO L93 Difference]: Finished difference Result 477 states and 772 transitions. [2022-01-31 23:59:50,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:50,520 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 96 [2022-01-31 23:59:50,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:50,521 INFO L225 Difference]: With dead ends: 477 [2022-01-31 23:59:50,521 INFO L226 Difference]: Without dead ends: 258 [2022-01-31 23:59:50,522 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 23:59:50,522 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 22 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:50,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 563 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-01-31 23:59:50,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-01-31 23:59:50,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 245. [2022-01-31 23:59:50,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 240 states have (on average 1.6208333333333333) internal successors, (389), 240 states have internal predecessors, (389), 3 states have call successors, (3), 3 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 23:59:50,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 393 transitions. [2022-01-31 23:59:50,544 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 393 transitions. Word has length 96 [2022-01-31 23:59:50,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:50,544 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 393 transitions. [2022-01-31 23:59:50,544 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 23:59:50,544 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 393 transitions. [2022-01-31 23:59:50,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-31 23:59:50,545 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:50,546 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:50,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 23:59:50,546 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:50,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:50,546 INFO L85 PathProgramCache]: Analyzing trace with hash -472619154, now seen corresponding path program 1 times [2022-01-31 23:59:50,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:50,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926697290] [2022-01-31 23:59:50,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:50,562 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:50,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:50,569 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:50,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:50,688 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 23:59:50,688 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:50,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926697290] [2022-01-31 23:59:50,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1926697290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:50,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:50,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:50,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876160744] [2022-01-31 23:59:50,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:50,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:50,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:50,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:50,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:50,690 INFO L87 Difference]: Start difference. First operand 245 states and 393 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:51,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:53,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:54,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:57,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:57,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:57,629 INFO L93 Difference]: Finished difference Result 551 states and 882 transitions. [2022-01-31 23:59:57,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:57,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-01-31 23:59:57,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:57,632 INFO L225 Difference]: With dead ends: 551 [2022-01-31 23:59:57,632 INFO L226 Difference]: Without dead ends: 332 [2022-01-31 23:59:57,633 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 23:59:57,633 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 163 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:57,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 448 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 514 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-01-31 23:59:57,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-01-31 23:59:57,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 245. [2022-01-31 23:59:57,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 240 states have (on average 1.6083333333333334) internal successors, (386), 240 states have internal predecessors, (386), 3 states have call successors, (3), 3 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 23:59:57,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 390 transitions. [2022-01-31 23:59:57,644 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 390 transitions. Word has length 97 [2022-01-31 23:59:57,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:57,644 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 390 transitions. [2022-01-31 23:59:57,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:57,645 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 390 transitions. [2022-01-31 23:59:57,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-31 23:59:57,646 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:57,646 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:57,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 23:59:57,646 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:57,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:57,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1990195657, now seen corresponding path program 1 times [2022-01-31 23:59:57,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:57,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407809543] [2022-01-31 23:59:57,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:57,661 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:57,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:57,666 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:57,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:57,762 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 23:59:57,762 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:57,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407809543] [2022-01-31 23:59:57,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1407809543] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:57,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:57,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:57,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978847257] [2022-01-31 23:59:57,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:57,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:57,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:57,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:57,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:57,764 INFO L87 Difference]: Start difference. First operand 245 states and 390 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:59,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:00,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:00,369 INFO L93 Difference]: Finished difference Result 551 states and 877 transitions. [2022-02-01 00:00:00,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:00,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-02-01 00:00:00,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:00,371 INFO L225 Difference]: With dead ends: 551 [2022-02-01 00:00:00,371 INFO L226 Difference]: Without dead ends: 332 [2022-02-01 00:00:00,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:00,372 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 161 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:00,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 448 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 511 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-01 00:00:00,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-02-01 00:00:00,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 245. [2022-02-01 00:00:00,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 240 states have (on average 1.5958333333333334) internal successors, (383), 240 states have internal predecessors, (383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:00,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 387 transitions. [2022-02-01 00:00:00,384 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 387 transitions. Word has length 98 [2022-02-01 00:00:00,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:00,385 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 387 transitions. [2022-02-01 00:00:00,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:00,385 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 387 transitions. [2022-02-01 00:00:00,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-01 00:00:00,386 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:00,386 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:00:00,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-01 00:00:00,386 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:00,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:00,387 INFO L85 PathProgramCache]: Analyzing trace with hash -344868736, now seen corresponding path program 1 times [2022-02-01 00:00:00,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:00,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137906818] [2022-02-01 00:00:00,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:00,400 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:00,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:00,405 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:00,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:00,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:00,529 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:00,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137906818] [2022-02-01 00:00:00,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2137906818] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:00,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:00,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:00:00,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480064457] [2022-02-01 00:00:00,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:00,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:00:00,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:00,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:00:00,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:00:00,530 INFO L87 Difference]: Start difference. First operand 245 states and 387 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:02,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:04,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:06,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:06,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:06,691 INFO L93 Difference]: Finished difference Result 506 states and 804 transitions. [2022-02-01 00:00:06,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:06,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-02-01 00:00:06,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:06,693 INFO L225 Difference]: With dead ends: 506 [2022-02-01 00:00:06,693 INFO L226 Difference]: Without dead ends: 287 [2022-02-01 00:00:06,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:06,695 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 29 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:06,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 577 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 418 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-02-01 00:00:06,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-02-01 00:00:06,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 267. [2022-02-01 00:00:06,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 262 states have (on average 1.5877862595419847) internal successors, (416), 262 states have internal predecessors, (416), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:06,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 420 transitions. [2022-02-01 00:00:06,708 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 420 transitions. Word has length 98 [2022-02-01 00:00:06,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:06,708 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 420 transitions. [2022-02-01 00:00:06,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:06,709 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 420 transitions. [2022-02-01 00:00:06,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-01 00:00:06,710 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:06,710 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:00:06,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-01 00:00:06,710 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:06,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:06,711 INFO L85 PathProgramCache]: Analyzing trace with hash 747722650, now seen corresponding path program 1 times [2022-02-01 00:00:06,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:06,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317950348] [2022-02-01 00:00:06,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:06,732 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:06,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:06,737 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:06,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:06,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:06,837 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:06,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317950348] [2022-02-01 00:00:06,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [317950348] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:06,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:06,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:00:06,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341044822] [2022-02-01 00:00:06,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:06,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:00:06,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:06,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:00:06,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:00:06,839 INFO L87 Difference]: Start difference. First operand 267 states and 420 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:08,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:10,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:12,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:14,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:14,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:14,763 INFO L93 Difference]: Finished difference Result 633 states and 1004 transitions. [2022-02-01 00:00:14,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:14,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-02-01 00:00:14,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:14,765 INFO L225 Difference]: With dead ends: 633 [2022-02-01 00:00:14,766 INFO L226 Difference]: Without dead ends: 392 [2022-02-01 00:00:14,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:14,767 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 160 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 45 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:14,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 696 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 634 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-02-01 00:00:14,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-02-01 00:00:14,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 283. [2022-02-01 00:00:14,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5719424460431655) internal successors, (437), 278 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:14,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 441 transitions. [2022-02-01 00:00:14,785 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 441 transitions. Word has length 111 [2022-02-01 00:00:14,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:14,785 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 441 transitions. [2022-02-01 00:00:14,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:14,785 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 441 transitions. [2022-02-01 00:00:14,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-02-01 00:00:14,786 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:14,787 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:00:14,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-01 00:00:14,787 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:14,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:14,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1136152900, now seen corresponding path program 1 times [2022-02-01 00:00:14,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:14,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255442046] [2022-02-01 00:00:14,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:14,835 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:14,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:14,842 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:14,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:14,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:14,977 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:14,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255442046] [2022-02-01 00:00:14,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1255442046] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:14,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:14,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:00:14,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180183267] [2022-02-01 00:00:14,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:14,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:00:14,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:14,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:00:14,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:00:14,979 INFO L87 Difference]: Start difference. First operand 283 states and 441 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) [2022-02-01 00:00:16,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:18,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:20,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:20,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:20,665 INFO L93 Difference]: Finished difference Result 553 states and 868 transitions. [2022-02-01 00:00:20,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:20,666 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 112 [2022-02-01 00:00:20,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:20,667 INFO L225 Difference]: With dead ends: 553 [2022-02-01 00:00:20,667 INFO L226 Difference]: Without dead ends: 296 [2022-02-01 00:00:20,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:20,668 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 19 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:20,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 640 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 419 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-02-01 00:00:20,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-02-01 00:00:20,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 283. [2022-02-01 00:00:20,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5683453237410072) internal successors, (436), 278 states have internal predecessors, (436), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:20,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 440 transitions. [2022-02-01 00:00:20,686 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 440 transitions. Word has length 112 [2022-02-01 00:00:20,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:20,687 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 440 transitions. [2022-02-01 00:00:20,687 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) [2022-02-01 00:00:20,687 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 440 transitions. [2022-02-01 00:00:20,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-02-01 00:00:20,688 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:20,688 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:00:20,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-01 00:00:20,688 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:20,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:20,689 INFO L85 PathProgramCache]: Analyzing trace with hash 732310441, now seen corresponding path program 1 times [2022-02-01 00:00:20,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:20,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674317393] [2022-02-01 00:00:20,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:20,720 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:20,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:20,725 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:20,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:20,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:20,857 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:20,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674317393] [2022-02-01 00:00:20,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [674317393] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:20,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:20,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-01 00:00:20,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655967929] [2022-02-01 00:00:20,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:20,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-01 00:00:20,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:20,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-01 00:00:20,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:20,858 INFO L87 Difference]: Start difference. First operand 283 states and 440 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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) [2022-02-01 00:00:22,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:24,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:26,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:29,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:29,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:29,797 INFO L93 Difference]: Finished difference Result 549 states and 862 transitions. [2022-02-01 00:00:29,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-01 00:00:29,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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 113 [2022-02-01 00:00:29,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:29,799 INFO L225 Difference]: With dead ends: 549 [2022-02-01 00:00:29,799 INFO L226 Difference]: Without dead ends: 292 [2022-02-01 00:00:29,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-01 00:00:29,800 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 3 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:29,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 729 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 457 Invalid, 3 Unknown, 0 Unchecked, 8.9s Time] [2022-02-01 00:00:29,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-02-01 00:00:29,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2022-02-01 00:00:29,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5574912891986064) internal successors, (447), 287 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) [2022-02-01 00:00:29,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 451 transitions. [2022-02-01 00:00:29,812 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 451 transitions. Word has length 113 [2022-02-01 00:00:29,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:29,812 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 451 transitions. [2022-02-01 00:00:29,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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) [2022-02-01 00:00:29,812 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 451 transitions. [2022-02-01 00:00:29,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-02-01 00:00:29,813 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:29,813 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:00:29,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-01 00:00:29,814 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:29,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:29,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1643941756, now seen corresponding path program 1 times [2022-02-01 00:00:29,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:29,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323470222] [2022-02-01 00:00:29,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:29,838 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:29,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:29,843 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:29,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:29,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:29,936 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:29,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323470222] [2022-02-01 00:00:29,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [323470222] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:29,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:29,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:00:29,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439257190] [2022-02-01 00:00:29,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:29,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:00:29,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:29,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:00:29,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:00:29,938 INFO L87 Difference]: Start difference. First operand 292 states and 451 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:31,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:33,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:35,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:35,404 INFO L93 Difference]: Finished difference Result 575 states and 894 transitions. [2022-02-01 00:00:35,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:35,405 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 114 [2022-02-01 00:00:35,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:35,406 INFO L225 Difference]: With dead ends: 575 [2022-02-01 00:00:35,406 INFO L226 Difference]: Without dead ends: 309 [2022-02-01 00:00:35,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:35,407 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 35 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:35,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 583 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 412 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-01 00:00:35,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-02-01 00:00:35,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 292. [2022-02-01 00:00:35,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5540069686411149) internal successors, (446), 287 states have internal predecessors, (446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:35,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 450 transitions. [2022-02-01 00:00:35,422 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 450 transitions. Word has length 114 [2022-02-01 00:00:35,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:35,422 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 450 transitions. [2022-02-01 00:00:35,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:35,422 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 450 transitions. [2022-02-01 00:00:35,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-02-01 00:00:35,423 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:35,423 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:00:35,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-01 00:00:35,423 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:35,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:35,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1023027159, now seen corresponding path program 1 times [2022-02-01 00:00:35,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:35,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48277776] [2022-02-01 00:00:35,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:35,442 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:35,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:35,448 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:35,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:35,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:35,603 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:35,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48277776] [2022-02-01 00:00:35,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [48277776] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:35,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:35,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:00:35,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978515326] [2022-02-01 00:00:35,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:35,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:00:35,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:35,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:00:35,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:00:35,604 INFO L87 Difference]: Start difference. First operand 292 states and 450 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:37,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:38,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:40,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:41,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:41,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:41,697 INFO L93 Difference]: Finished difference Result 730 states and 1139 transitions. [2022-02-01 00:00:41,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:41,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 120 [2022-02-01 00:00:41,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:41,699 INFO L225 Difference]: With dead ends: 730 [2022-02-01 00:00:41,699 INFO L226 Difference]: Without dead ends: 464 [2022-02-01 00:00:41,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:41,700 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 143 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:41,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 460 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-02-01 00:00:41,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-02-01 00:00:41,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 356. [2022-02-01 00:00:41,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 351 states have (on average 1.566951566951567) internal successors, (550), 351 states have internal predecessors, (550), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:41,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 554 transitions. [2022-02-01 00:00:41,721 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 554 transitions. Word has length 120 [2022-02-01 00:00:41,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:41,721 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 554 transitions. [2022-02-01 00:00:41,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:41,721 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 554 transitions. [2022-02-01 00:00:41,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-01 00:00:41,722 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:41,723 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:00:41,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-01 00:00:41,723 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:41,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:41,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1819271850, now seen corresponding path program 1 times [2022-02-01 00:00:41,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:41,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530836571] [2022-02-01 00:00:41,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:41,758 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:41,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:41,764 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:41,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:41,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:41,869 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:41,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530836571] [2022-02-01 00:00:41,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [530836571] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:41,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:41,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:00:41,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848306301] [2022-02-01 00:00:41,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:41,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:00:41,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:41,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:00:41,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:00:41,870 INFO L87 Difference]: Start difference. First operand 356 states and 554 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:44,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:46,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:46,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:46,987 INFO L93 Difference]: Finished difference Result 772 states and 1205 transitions. [2022-02-01 00:00:46,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:46,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-02-01 00:00:46,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:46,989 INFO L225 Difference]: With dead ends: 772 [2022-02-01 00:00:46,989 INFO L226 Difference]: Without dead ends: 442 [2022-02-01 00:00:46,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:46,990 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 165 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:46,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 418 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 495 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2022-02-01 00:00:46,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-02-01 00:00:47,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 356. [2022-02-01 00:00:47,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 351 states have (on average 1.5498575498575498) internal successors, (544), 351 states have internal predecessors, (544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:47,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 548 transitions. [2022-02-01 00:00:47,012 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 548 transitions. Word has length 125 [2022-02-01 00:00:47,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:47,012 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 548 transitions. [2022-02-01 00:00:47,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:47,012 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 548 transitions. [2022-02-01 00:00:47,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-01 00:00:47,013 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:47,014 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:00:47,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-01 00:00:47,014 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:47,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:47,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1280230605, now seen corresponding path program 1 times [2022-02-01 00:00:47,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:47,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523507019] [2022-02-01 00:00:47,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:47,038 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:47,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:47,045 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:47,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:47,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:47,173 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:47,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523507019] [2022-02-01 00:00:47,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1523507019] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:47,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:47,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:00:47,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216357242] [2022-02-01 00:00:47,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:47,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:00:47,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:47,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:00:47,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:00:47,175 INFO L87 Difference]: Start difference. First operand 356 states and 548 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:48,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:50,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:52,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:53,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:53,062 INFO L93 Difference]: Finished difference Result 785 states and 1216 transitions. [2022-02-01 00:00:53,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:53,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-02-01 00:00:53,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:53,064 INFO L225 Difference]: With dead ends: 785 [2022-02-01 00:00:53,064 INFO L226 Difference]: Without dead ends: 455 [2022-02-01 00:00:53,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:53,066 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 91 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:53,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 555 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 533 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-02-01 00:00:53,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-02-01 00:00:53,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 395. [2022-02-01 00:00:53,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 390 states have (on average 1.5538461538461539) internal successors, (606), 390 states have internal predecessors, (606), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:53,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 610 transitions. [2022-02-01 00:00:53,092 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 610 transitions. Word has length 126 [2022-02-01 00:00:53,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:53,092 INFO L470 AbstractCegarLoop]: Abstraction has 395 states and 610 transitions. [2022-02-01 00:00:53,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:53,092 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 610 transitions. [2022-02-01 00:00:53,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-01 00:00:53,094 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:53,094 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:00:53,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-01 00:00:53,094 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:53,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:53,094 INFO L85 PathProgramCache]: Analyzing trace with hash -441196943, now seen corresponding path program 1 times [2022-02-01 00:00:53,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:53,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752583201] [2022-02-01 00:00:53,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:53,128 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:53,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:53,134 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:53,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:53,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:53,246 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:53,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752583201] [2022-02-01 00:00:53,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [752583201] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:53,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:53,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:00:53,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947430818] [2022-02-01 00:00:53,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:53,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:00:53,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:53,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:00:53,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:00:53,247 INFO L87 Difference]: Start difference. First operand 395 states and 610 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) [2022-02-01 00:00:54,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:55,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:57,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:58,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:58,273 INFO L93 Difference]: Finished difference Result 810 states and 1256 transitions. [2022-02-01 00:00:58,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:58,274 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 126 [2022-02-01 00:00:58,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:58,276 INFO L225 Difference]: With dead ends: 810 [2022-02-01 00:00:58,276 INFO L226 Difference]: Without dead ends: 441 [2022-02-01 00:00:58,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:58,277 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 35 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:58,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 673 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-02-01 00:00:58,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-02-01 00:00:58,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 419. [2022-02-01 00:00:58,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 414 states have (on average 1.5483091787439613) internal successors, (641), 414 states have internal predecessors, (641), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:58,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 645 transitions. [2022-02-01 00:00:58,303 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 645 transitions. Word has length 126 [2022-02-01 00:00:58,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:58,303 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 645 transitions. [2022-02-01 00:00:58,303 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) [2022-02-01 00:00:58,303 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 645 transitions. [2022-02-01 00:00:58,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-02-01 00:00:58,304 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:58,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:00:58,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-01 00:00:58,305 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:58,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:58,305 INFO L85 PathProgramCache]: Analyzing trace with hash 860641639, now seen corresponding path program 1 times [2022-02-01 00:00:58,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:58,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957984507] [2022-02-01 00:00:58,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:58,330 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:58,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:58,336 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:58,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:58,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:58,461 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:58,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957984507] [2022-02-01 00:00:58,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [957984507] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:58,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:58,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:00:58,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860065542] [2022-02-01 00:00:58,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:58,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:00:58,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:58,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:00:58,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:00:58,463 INFO L87 Difference]: Start difference. First operand 419 states and 645 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:00,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:02,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:04,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:06,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:06,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:06,759 INFO L93 Difference]: Finished difference Result 898 states and 1387 transitions. [2022-02-01 00:01:06,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:01:06,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 127 [2022-02-01 00:01:06,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:06,761 INFO L225 Difference]: With dead ends: 898 [2022-02-01 00:01:06,761 INFO L226 Difference]: Without dead ends: 505 [2022-02-01 00:01:06,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:01:06,763 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 137 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:06,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 418 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 494 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-02-01 00:01:06,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-02-01 00:01:06,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 419. [2022-02-01 00:01:06,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 414 states have (on average 1.5434782608695652) internal successors, (639), 414 states have internal predecessors, (639), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:06,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 643 transitions. [2022-02-01 00:01:06,789 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 643 transitions. Word has length 127 [2022-02-01 00:01:06,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:06,790 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 643 transitions. [2022-02-01 00:01:06,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:06,790 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 643 transitions. [2022-02-01 00:01:06,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-01 00:01:06,791 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:06,791 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:01:06,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-01 00:01:06,792 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:06,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:06,792 INFO L85 PathProgramCache]: Analyzing trace with hash -477332652, now seen corresponding path program 1 times [2022-02-01 00:01:06,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:06,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1824714317] [2022-02-01 00:01:06,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:06,824 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:06,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:06,831 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:06,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:06,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:06,938 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:06,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1824714317] [2022-02-01 00:01:06,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1824714317] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:06,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:06,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:01:06,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272471444] [2022-02-01 00:01:06,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:06,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:01:06,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:06,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:01:06,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:01:06,939 INFO L87 Difference]: Start difference. First operand 419 states and 643 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:08,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:09,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:09,466 INFO L93 Difference]: Finished difference Result 938 states and 1447 transitions. [2022-02-01 00:01:09,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:01:09,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-02-01 00:01:09,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:09,469 INFO L225 Difference]: With dead ends: 938 [2022-02-01 00:01:09,469 INFO L226 Difference]: Without dead ends: 545 [2022-02-01 00:01:09,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:01:09,471 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 130 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:09,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 419 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:01:09,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-02-01 00:01:09,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 462. [2022-02-01 00:01:09,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 457 states have (on average 1.549234135667396) internal successors, (708), 457 states have internal predecessors, (708), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:09,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 712 transitions. [2022-02-01 00:01:09,501 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 712 transitions. Word has length 134 [2022-02-01 00:01:09,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:09,502 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 712 transitions. [2022-02-01 00:01:09,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:09,502 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 712 transitions. [2022-02-01 00:01:09,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-02-01 00:01:09,503 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:09,503 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:01:09,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-01 00:01:09,504 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:09,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:09,504 INFO L85 PathProgramCache]: Analyzing trace with hash 341501800, now seen corresponding path program 1 times [2022-02-01 00:01:09,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:09,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033040892] [2022-02-01 00:01:09,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:09,535 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:09,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:09,542 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:09,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:09,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:09,652 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:09,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033040892] [2022-02-01 00:01:09,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2033040892] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:09,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:09,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:01:09,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699164267] [2022-02-01 00:01:09,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:09,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:01:09,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:09,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:01:09,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:01:09,654 INFO L87 Difference]: Start difference. First operand 462 states and 712 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:12,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:14,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:14,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:14,504 INFO L93 Difference]: Finished difference Result 946 states and 1461 transitions. [2022-02-01 00:01:14,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:01:14,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 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 135 [2022-02-01 00:01:14,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:14,506 INFO L225 Difference]: With dead ends: 946 [2022-02-01 00:01:14,507 INFO L226 Difference]: Without dead ends: 510 [2022-02-01 00:01:14,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:01:14,508 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 68 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:14,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 555 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 520 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-02-01 00:01:14,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-02-01 00:01:14,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 466. [2022-02-01 00:01:14,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 461 states have (on average 1.5444685466377441) internal successors, (712), 461 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:14,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 716 transitions. [2022-02-01 00:01:14,541 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 716 transitions. Word has length 135 [2022-02-01 00:01:14,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:14,541 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 716 transitions. [2022-02-01 00:01:14,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:14,541 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 716 transitions. [2022-02-01 00:01:14,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-02-01 00:01:14,542 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:14,543 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:01:14,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-01 00:01:14,543 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:14,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:14,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1442254033, now seen corresponding path program 1 times [2022-02-01 00:01:14,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:14,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208322377] [2022-02-01 00:01:14,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:14,574 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:14,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:14,581 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:14,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:14,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:14,690 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:14,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208322377] [2022-02-01 00:01:14,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [208322377] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:14,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:14,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:01:14,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731909827] [2022-02-01 00:01:14,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:14,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:01:14,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:14,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:01:14,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:01:14,692 INFO L87 Difference]: Start difference. First operand 466 states and 716 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:16,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:18,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:20,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:21,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:21,489 INFO L93 Difference]: Finished difference Result 982 states and 1516 transitions. [2022-02-01 00:01:21,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:01:21,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 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 142 [2022-02-01 00:01:21,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:21,491 INFO L225 Difference]: With dead ends: 982 [2022-02-01 00:01:21,491 INFO L226 Difference]: Without dead ends: 542 [2022-02-01 00:01:21,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:01:21,497 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 154 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:21,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 470 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 500 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-02-01 00:01:21,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-02-01 00:01:21,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 466. [2022-02-01 00:01:21,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 461 states have (on average 1.527114967462039) internal successors, (704), 461 states have internal predecessors, (704), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:21,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 708 transitions. [2022-02-01 00:01:21,530 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 708 transitions. Word has length 142 [2022-02-01 00:01:21,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:21,531 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 708 transitions. [2022-02-01 00:01:21,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:21,531 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 708 transitions. [2022-02-01 00:01:21,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-01 00:01:21,532 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:21,533 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:01:21,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-01 00:01:21,533 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:21,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:21,534 INFO L85 PathProgramCache]: Analyzing trace with hash -735212620, now seen corresponding path program 1 times [2022-02-01 00:01:21,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:21,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350903095] [2022-02-01 00:01:21,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:21,563 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:21,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:21,571 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:21,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:21,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:21,723 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:21,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350903095] [2022-02-01 00:01:21,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1350903095] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:21,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:21,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:01:21,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007895811] [2022-02-01 00:01:21,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:21,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:01:21,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:21,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:01:21,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:01:21,724 INFO L87 Difference]: Start difference. First operand 466 states and 708 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:23,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:26,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:26,773 INFO L93 Difference]: Finished difference Result 1025 states and 1568 transitions. [2022-02-01 00:01:26,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:01:26,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-01 00:01:26,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:26,775 INFO L225 Difference]: With dead ends: 1025 [2022-02-01 00:01:26,775 INFO L226 Difference]: Without dead ends: 585 [2022-02-01 00:01:26,776 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 [2022-02-01 00:01:26,777 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 136 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:26,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 438 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-02-01 00:01:26,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-02-01 00:01:26,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 496. [2022-02-01 00:01:26,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 491 states have (on average 1.5173116089613035) internal successors, (745), 491 states have internal predecessors, (745), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:26,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 749 transitions. [2022-02-01 00:01:26,814 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 749 transitions. Word has length 147 [2022-02-01 00:01:26,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:26,814 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 749 transitions. [2022-02-01 00:01:26,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:26,814 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 749 transitions. [2022-02-01 00:01:26,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-01 00:01:26,815 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:26,816 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:01:26,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-01 00:01:26,816 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:26,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:26,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1164028750, now seen corresponding path program 1 times [2022-02-01 00:01:26,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:26,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434502391] [2022-02-01 00:01:26,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:26,847 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:26,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:26,854 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:26,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:26,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:26,966 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:26,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434502391] [2022-02-01 00:01:26,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1434502391] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:26,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:26,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:01:26,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600273901] [2022-02-01 00:01:26,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:26,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:01:26,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:26,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:01:26,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:01:26,968 INFO L87 Difference]: Start difference. First operand 496 states and 749 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:28,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:32,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:32,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:32,714 INFO L93 Difference]: Finished difference Result 1042 states and 1582 transitions. [2022-02-01 00:01:32,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:01:32,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-02-01 00:01:32,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:32,716 INFO L225 Difference]: With dead ends: 1042 [2022-02-01 00:01:32,716 INFO L226 Difference]: Without dead ends: 572 [2022-02-01 00:01:32,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:01:32,718 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 142 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:32,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 484 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-01 00:01:32,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-02-01 00:01:32,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 496. [2022-02-01 00:01:32,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 491 states have (on average 1.5030549898167007) internal successors, (738), 491 states have internal predecessors, (738), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:32,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 742 transitions. [2022-02-01 00:01:32,756 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 742 transitions. Word has length 148 [2022-02-01 00:01:32,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:32,756 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 742 transitions. [2022-02-01 00:01:32,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:32,757 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 742 transitions. [2022-02-01 00:01:32,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-01 00:01:32,758 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:32,758 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:01:32,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-01 00:01:32,759 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:32,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:32,759 INFO L85 PathProgramCache]: Analyzing trace with hash 2018925445, now seen corresponding path program 1 times [2022-02-01 00:01:32,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:32,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1110921379] [2022-02-01 00:01:32,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:32,787 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:32,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:32,795 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:32,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:32,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:32,910 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:32,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1110921379] [2022-02-01 00:01:32,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1110921379] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:32,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:32,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:01:32,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905804545] [2022-02-01 00:01:32,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:32,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:01:32,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:32,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:01:32,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:01:32,912 INFO L87 Difference]: Start difference. First operand 496 states and 742 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:35,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:37,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:38,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:38,445 INFO L93 Difference]: Finished difference Result 998 states and 1501 transitions. [2022-02-01 00:01:38,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:01:38,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-02-01 00:01:38,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:38,448 INFO L225 Difference]: With dead ends: 998 [2022-02-01 00:01:38,448 INFO L226 Difference]: Without dead ends: 528 [2022-02-01 00:01:38,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:01:38,449 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 66 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:38,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 587 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-01 00:01:38,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-02-01 00:01:38,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 496. [2022-02-01 00:01:38,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 491 states have (on average 1.5010183299389002) internal successors, (737), 491 states have internal predecessors, (737), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:38,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 741 transitions. [2022-02-01 00:01:38,478 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 741 transitions. Word has length 148 [2022-02-01 00:01:38,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:38,479 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 741 transitions. [2022-02-01 00:01:38,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:38,479 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 741 transitions. [2022-02-01 00:01:38,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-01 00:01:38,480 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:38,481 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:01:38,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-01 00:01:38,481 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:38,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:38,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1233441780, now seen corresponding path program 1 times [2022-02-01 00:01:38,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:38,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1474085461] [2022-02-01 00:01:38,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:38,515 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:38,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:38,523 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:38,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:38,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:38,629 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:38,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1474085461] [2022-02-01 00:01:38,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1474085461] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:38,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:38,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:01:38,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595691557] [2022-02-01 00:01:38,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:38,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:01:38,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:38,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:01:38,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:01:38,631 INFO L87 Difference]: Start difference. First operand 496 states and 741 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:40,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:42,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:43,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:43,075 INFO L93 Difference]: Finished difference Result 1433 states and 2161 transitions. [2022-02-01 00:01:43,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:01:43,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-02-01 00:01:43,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:43,078 INFO L225 Difference]: With dead ends: 1433 [2022-02-01 00:01:43,078 INFO L226 Difference]: Without dead ends: 963 [2022-02-01 00:01:43,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:01:43,079 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 155 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:43,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 454 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-02-01 00:01:43,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2022-02-01 00:01:43,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2022-02-01 00:01:43,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 958 states have (on average 1.4864300626304803) internal successors, (1424), 958 states have internal predecessors, (1424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:43,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1428 transitions. [2022-02-01 00:01:43,155 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1428 transitions. Word has length 148 [2022-02-01 00:01:43,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:43,155 INFO L470 AbstractCegarLoop]: Abstraction has 963 states and 1428 transitions. [2022-02-01 00:01:43,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:43,155 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1428 transitions. [2022-02-01 00:01:43,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-01 00:01:43,158 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:43,158 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:01:43,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-01 00:01:43,158 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:43,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:43,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1194816842, now seen corresponding path program 1 times [2022-02-01 00:01:43,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:43,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007251867] [2022-02-01 00:01:43,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:43,189 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:43,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:43,199 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:43,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:43,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:43,300 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:43,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007251867] [2022-02-01 00:01:43,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2007251867] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:43,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:43,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:01:43,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067050378] [2022-02-01 00:01:43,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:43,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:01:43,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:43,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:01:43,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:01:43,301 INFO L87 Difference]: Start difference. First operand 963 states and 1428 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:45,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:45,607 INFO L93 Difference]: Finished difference Result 1927 states and 2863 transitions. [2022-02-01 00:01:45,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:01:45,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-02-01 00:01:45,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:45,611 INFO L225 Difference]: With dead ends: 1927 [2022-02-01 00:01:45,611 INFO L226 Difference]: Without dead ends: 990 [2022-02-01 00:01:45,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:01:45,613 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:45,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 441 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-02-01 00:01:45,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-02-01 00:01:45,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 990. [2022-02-01 00:01:45,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 985 states have (on average 1.481218274111675) internal successors, (1459), 985 states have internal predecessors, (1459), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:45,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1463 transitions. [2022-02-01 00:01:45,678 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1463 transitions. Word has length 148 [2022-02-01 00:01:45,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:45,678 INFO L470 AbstractCegarLoop]: Abstraction has 990 states and 1463 transitions. [2022-02-01 00:01:45,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:45,678 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1463 transitions. [2022-02-01 00:01:45,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-01 00:01:45,681 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:45,681 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:01:45,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-01 00:01:45,681 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:45,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:45,681 INFO L85 PathProgramCache]: Analyzing trace with hash -855592056, now seen corresponding path program 1 times [2022-02-01 00:01:45,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:45,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1577001632] [2022-02-01 00:01:45,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:45,715 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:45,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:45,723 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:45,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:45,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:45,840 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:45,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1577001632] [2022-02-01 00:01:45,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1577001632] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:45,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:45,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:01:45,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615185633] [2022-02-01 00:01:45,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:45,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:01:45,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:45,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:01:45,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:01:45,842 INFO L87 Difference]: Start difference. First operand 990 states and 1463 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:47,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:48,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:48,175 INFO L93 Difference]: Finished difference Result 1956 states and 2899 transitions. [2022-02-01 00:01:48,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:01:48,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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 148 [2022-02-01 00:01:48,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:48,178 INFO L225 Difference]: With dead ends: 1956 [2022-02-01 00:01:48,179 INFO L226 Difference]: Without dead ends: 992 [2022-02-01 00:01:48,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:01:48,181 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:48,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 420 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 281 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-01 00:01:48,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2022-02-01 00:01:48,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 992. [2022-02-01 00:01:48,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 987 states have (on average 1.4802431610942248) internal successors, (1461), 987 states have internal predecessors, (1461), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:48,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1465 transitions. [2022-02-01 00:01:48,258 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1465 transitions. Word has length 148 [2022-02-01 00:01:48,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:48,259 INFO L470 AbstractCegarLoop]: Abstraction has 992 states and 1465 transitions. [2022-02-01 00:01:48,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:48,259 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1465 transitions. [2022-02-01 00:01:48,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-02-01 00:01:48,261 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:48,261 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:01:48,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-01 00:01:48,261 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:48,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:48,262 INFO L85 PathProgramCache]: Analyzing trace with hash 990580322, now seen corresponding path program 1 times [2022-02-01 00:01:48,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:48,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985519595] [2022-02-01 00:01:48,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:48,291 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:48,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:48,309 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:48,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:48,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:48,406 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:48,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985519595] [2022-02-01 00:01:48,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1985519595] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:48,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:48,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:01:48,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978720325] [2022-02-01 00:01:48,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:48,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:01:48,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:48,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:01:48,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:01:48,407 INFO L87 Difference]: Start difference. First operand 992 states and 1465 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:50,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:50,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:50,955 INFO L93 Difference]: Finished difference Result 2423 states and 3607 transitions. [2022-02-01 00:01:50,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:01:50,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-02-01 00:01:50,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:50,960 INFO L225 Difference]: With dead ends: 2423 [2022-02-01 00:01:50,960 INFO L226 Difference]: Without dead ends: 1459 [2022-02-01 00:01:50,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:01:50,962 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 160 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:50,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 601 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:01:50,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2022-02-01 00:01:51,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1459. [2022-02-01 00:01:51,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1454 states have (on average 1.4773039889958735) internal successors, (2148), 1454 states have internal predecessors, (2148), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:51,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 2152 transitions. [2022-02-01 00:01:51,071 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 2152 transitions. Word has length 150 [2022-02-01 00:01:51,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:51,071 INFO L470 AbstractCegarLoop]: Abstraction has 1459 states and 2152 transitions. [2022-02-01 00:01:51,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:51,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 2152 transitions. [2022-02-01 00:01:51,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-02-01 00:01:51,074 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:51,074 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:01:51,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-01 00:01:51,075 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:51,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:51,075 INFO L85 PathProgramCache]: Analyzing trace with hash 690062259, now seen corresponding path program 1 times [2022-02-01 00:01:51,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:51,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1947681536] [2022-02-01 00:01:51,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:51,118 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:51,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:51,127 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:51,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:51,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:51,281 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:51,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1947681536] [2022-02-01 00:01:51,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1947681536] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:51,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:51,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:01:51,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383576307] [2022-02-01 00:01:51,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:51,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:01:51,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:51,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:01:51,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:01:51,284 INFO L87 Difference]: Start difference. First operand 1459 states and 2152 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:53,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:56,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:56,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:56,768 INFO L93 Difference]: Finished difference Result 3040 states and 4491 transitions. [2022-02-01 00:01:56,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:01:56,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 179 [2022-02-01 00:01:56,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:56,773 INFO L225 Difference]: With dead ends: 3040 [2022-02-01 00:01:56,773 INFO L226 Difference]: Without dead ends: 1609 [2022-02-01 00:01:56,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:01:56,776 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 40 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:56,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 673 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 509 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-01 00:01:56,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2022-02-01 00:01:56,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1543. [2022-02-01 00:01:56,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1538 states have (on average 1.476592977893368) internal successors, (2271), 1538 states have internal predecessors, (2271), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:56,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2275 transitions. [2022-02-01 00:01:56,882 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2275 transitions. Word has length 179 [2022-02-01 00:01:56,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:56,882 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2275 transitions. [2022-02-01 00:01:56,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:56,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2275 transitions. [2022-02-01 00:01:56,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-01 00:01:56,886 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:56,886 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:01:56,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-01 00:01:56,886 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:56,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:56,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1913787651, now seen corresponding path program 1 times [2022-02-01 00:01:56,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:56,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028683310] [2022-02-01 00:01:56,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:02:05,624 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:02:05,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:02:05,634 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:02:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:05,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:02:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:05,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:02:05,766 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:02:05,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028683310] [2022-02-01 00:02:05,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1028683310] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:02:05,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:02:05,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:02:05,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948642780] [2022-02-01 00:02:05,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:02:05,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:02:05,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:02:05,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:02:05,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:02:05,768 INFO L87 Difference]: Start difference. First operand 1543 states and 2275 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:08,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:10,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:12,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:12,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:02:12,954 INFO L93 Difference]: Finished difference Result 3281 states and 4821 transitions. [2022-02-01 00:02:12,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:02:12,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-02-01 00:02:12,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:02:12,959 INFO L225 Difference]: With dead ends: 3281 [2022-02-01 00:02:12,959 INFO L226 Difference]: Without dead ends: 1766 [2022-02-01 00:02:12,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:02:12,962 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 141 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 55 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-01 00:02:12,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 450 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 489 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-02-01 00:02:12,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2022-02-01 00:02:13,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1543. [2022-02-01 00:02:13,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1538 states have (on average 1.4609882964889467) internal successors, (2247), 1538 states have internal predecessors, (2247), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:13,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2251 transitions. [2022-02-01 00:02:13,066 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2251 transitions. Word has length 202 [2022-02-01 00:02:13,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:02:13,066 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2251 transitions. [2022-02-01 00:02:13,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:13,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2251 transitions. [2022-02-01 00:02:13,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-02-01 00:02:13,070 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:02:13,070 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:02:13,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-01 00:02:13,070 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:02:13,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:02:13,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1137969465, now seen corresponding path program 1 times [2022-02-01 00:02:13,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:02:13,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431318442] [2022-02-01 00:02:13,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:02:13,118 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:02:13,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:02:13,126 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:02:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:13,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:02:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:13,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:02:13,259 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:02:13,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431318442] [2022-02-01 00:02:13,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1431318442] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:02:13,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:02:13,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:02:13,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824952160] [2022-02-01 00:02:13,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:02:13,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:02:13,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:02:13,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:02:13,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:02:13,261 INFO L87 Difference]: Start difference. First operand 1543 states and 2251 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:14,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:16,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:17,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:17,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:02:17,843 INFO L93 Difference]: Finished difference Result 3554 states and 5213 transitions. [2022-02-01 00:02:17,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:02:17,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 204 [2022-02-01 00:02:17,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:02:17,850 INFO L225 Difference]: With dead ends: 3554 [2022-02-01 00:02:17,851 INFO L226 Difference]: Without dead ends: 2039 [2022-02-01 00:02:17,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:02:17,854 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 163 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:02:17,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 393 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 305 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-02-01 00:02:17,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2022-02-01 00:02:18,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 2039. [2022-02-01 00:02:18,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2039 states, 2034 states have (on average 1.4621435594886922) internal successors, (2974), 2034 states have internal predecessors, (2974), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:18,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2978 transitions. [2022-02-01 00:02:18,053 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2978 transitions. Word has length 204 [2022-02-01 00:02:18,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:02:18,053 INFO L470 AbstractCegarLoop]: Abstraction has 2039 states and 2978 transitions. [2022-02-01 00:02:18,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:18,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2978 transitions. [2022-02-01 00:02:18,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-02-01 00:02:18,056 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:02:18,056 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:02:18,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-01 00:02:18,057 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:02:18,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:02:18,057 INFO L85 PathProgramCache]: Analyzing trace with hash 965925148, now seen corresponding path program 1 times [2022-02-01 00:02:18,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:02:18,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931302311] [2022-02-01 00:02:18,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:02:26,726 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:02:26,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:02:26,734 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:02:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:26,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:02:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:26,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:02:26,863 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:02:26,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931302311] [2022-02-01 00:02:26,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [931302311] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:02:26,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:02:26,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:02:26,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441591760] [2022-02-01 00:02:26,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:02:26,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:02:26,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:02:26,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:02:26,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:02:26,864 INFO L87 Difference]: Start difference. First operand 2039 states and 2978 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:28,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:30,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:32,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:33,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:02:33,319 INFO L93 Difference]: Finished difference Result 4119 states and 6025 transitions. [2022-02-01 00:02:33,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:02:33,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 233 [2022-02-01 00:02:33,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:02:33,325 INFO L225 Difference]: With dead ends: 4119 [2022-02-01 00:02:33,325 INFO L226 Difference]: Without dead ends: 2108 [2022-02-01 00:02:33,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:02:33,328 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 38 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:02:33,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 661 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 492 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-02-01 00:02:33,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2022-02-01 00:02:33,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 2039. [2022-02-01 00:02:33,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2039 states, 2034 states have (on average 1.4601769911504425) internal successors, (2970), 2034 states have internal predecessors, (2970), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2974 transitions. [2022-02-01 00:02:33,494 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2974 transitions. Word has length 233 [2022-02-01 00:02:33,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:02:33,494 INFO L470 AbstractCegarLoop]: Abstraction has 2039 states and 2974 transitions. [2022-02-01 00:02:33,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:33,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2974 transitions. [2022-02-01 00:02:33,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-02-01 00:02:33,499 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:02:33,499 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:02:33,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-01 00:02:33,499 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:02:33,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:02:33,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1152223467, now seen corresponding path program 1 times [2022-02-01 00:02:33,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:02:33,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119512124] [2022-02-01 00:02:33,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:02:42,417 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:02:42,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:02:42,424 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:02:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:42,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:02:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:42,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:02:42,548 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:02:42,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119512124] [2022-02-01 00:02:42,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1119512124] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:02:42,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:02:42,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:02:42,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530334162] [2022-02-01 00:02:42,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:02:42,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:02:42,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:02:42,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:02:42,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:02:42,549 INFO L87 Difference]: Start difference. First operand 2039 states and 2974 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:44,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:45,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:02:45,120 INFO L93 Difference]: Finished difference Result 4103 states and 5995 transitions. [2022-02-01 00:02:45,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:02:45,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 234 [2022-02-01 00:02:45,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:02:45,127 INFO L225 Difference]: With dead ends: 4103 [2022-02-01 00:02:45,127 INFO L226 Difference]: Without dead ends: 2092 [2022-02-01 00:02:45,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:02:45,132 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 32 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:02:45,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 653 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:02:45,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2022-02-01 00:02:45,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 2039. [2022-02-01 00:02:45,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2039 states, 2034 states have (on average 1.4582104228121928) internal successors, (2966), 2034 states have internal predecessors, (2966), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:45,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2970 transitions. [2022-02-01 00:02:45,278 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2970 transitions. Word has length 234 [2022-02-01 00:02:45,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:02:45,279 INFO L470 AbstractCegarLoop]: Abstraction has 2039 states and 2970 transitions. [2022-02-01 00:02:45,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:45,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2970 transitions. [2022-02-01 00:02:45,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-02-01 00:02:45,283 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:02:45,283 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:02:45,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-01 00:02:45,283 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:02:45,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:02:45,284 INFO L85 PathProgramCache]: Analyzing trace with hash 34534688, now seen corresponding path program 1 times [2022-02-01 00:02:45,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:02:45,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636813370] [2022-02-01 00:02:45,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:02:45,327 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:02:45,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:02:45,335 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:02:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:45,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:02:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:45,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:02:45,481 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:02:45,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636813370] [2022-02-01 00:02:45,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [636813370] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:02:45,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:02:45,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:02:45,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748505775] [2022-02-01 00:02:45,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:02:45,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:02:45,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:02:45,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:02:45,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:02:45,483 INFO L87 Difference]: Start difference. First operand 2039 states and 2970 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:46,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:49,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:50,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:02:50,091 INFO L93 Difference]: Finished difference Result 4545 states and 6632 transitions. [2022-02-01 00:02:50,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:02:50,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 236 [2022-02-01 00:02:50,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:02:50,099 INFO L225 Difference]: With dead ends: 4545 [2022-02-01 00:02:50,099 INFO L226 Difference]: Without dead ends: 2534 [2022-02-01 00:02:50,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:02:50,104 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 161 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:02:50,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 603 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-02-01 00:02:50,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2534 states. [2022-02-01 00:02:50,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2534 to 2534. [2022-02-01 00:02:50,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2534 states, 2529 states have (on average 1.4567022538552787) internal successors, (3684), 2529 states have internal predecessors, (3684), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:50,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2534 states to 2534 states and 3688 transitions. [2022-02-01 00:02:50,276 INFO L78 Accepts]: Start accepts. Automaton has 2534 states and 3688 transitions. Word has length 236 [2022-02-01 00:02:50,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:02:50,277 INFO L470 AbstractCegarLoop]: Abstraction has 2534 states and 3688 transitions. [2022-02-01 00:02:50,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:50,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2534 states and 3688 transitions. [2022-02-01 00:02:50,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-02-01 00:02:50,282 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:02:50,282 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:02:50,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-01 00:02:50,283 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:02:50,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:02:50,283 INFO L85 PathProgramCache]: Analyzing trace with hash 2011950533, now seen corresponding path program 1 times [2022-02-01 00:02:50,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:02:50,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025052446] [2022-02-01 00:02:50,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:02:50,357 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:02:50,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:02:50,369 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:02:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:50,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:02:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:50,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:02:50,559 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:02:50,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025052446] [2022-02-01 00:02:50,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2025052446] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:02:50,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:02:50,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:02:50,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495574484] [2022-02-01 00:02:50,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:02:50,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:02:50,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:02:50,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:02:50,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:02:50,562 INFO L87 Difference]: Start difference. First operand 2534 states and 3688 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:52,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:53,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:54,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:02:54,266 INFO L93 Difference]: Finished difference Result 5536 states and 8085 transitions. [2022-02-01 00:02:54,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:02:54,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 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 242 [2022-02-01 00:02:54,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:02:54,274 INFO L225 Difference]: With dead ends: 5536 [2022-02-01 00:02:54,274 INFO L226 Difference]: Without dead ends: 3030 [2022-02-01 00:02:54,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:02:54,280 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 171 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:02:54,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 392 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-02-01 00:02:54,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2022-02-01 00:02:54,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2022-02-01 00:02:54,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3025 states have (on average 1.4578512396694214) internal successors, (4410), 3025 states have internal predecessors, (4410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:54,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 4414 transitions. [2022-02-01 00:02:54,554 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 4414 transitions. Word has length 242 [2022-02-01 00:02:54,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:02:54,554 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 4414 transitions. [2022-02-01 00:02:54,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:54,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 4414 transitions. [2022-02-01 00:02:54,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-02-01 00:02:54,560 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:02:54,561 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:02:54,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-01 00:02:54,561 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:02:54,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:02:54,561 INFO L85 PathProgramCache]: Analyzing trace with hash 569442031, now seen corresponding path program 1 times [2022-02-01 00:02:54,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:02:54,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842793594] [2022-02-01 00:02:54,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:02:54,640 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:02:54,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:02:54,651 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:02:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:54,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:02:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:54,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:02:54,794 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:02:54,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842793594] [2022-02-01 00:02:54,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1842793594] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:02:54,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:02:54,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:02:54,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26947627] [2022-02-01 00:02:54,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:02:54,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:02:54,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:02:54,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:02:54,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:02:54,796 INFO L87 Difference]: Start difference. First operand 3030 states and 4414 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:55,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:58,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:59,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:02:59,198 INFO L93 Difference]: Finished difference Result 6528 states and 9537 transitions. [2022-02-01 00:02:59,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:02:59,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 244 [2022-02-01 00:02:59,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:02:59,205 INFO L225 Difference]: With dead ends: 6528 [2022-02-01 00:02:59,205 INFO L226 Difference]: Without dead ends: 3526 [2022-02-01 00:02:59,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:02:59,210 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 172 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:02:59,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 391 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 305 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-02-01 00:02:59,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3526 states. [2022-02-01 00:02:59,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3526 to 3526. [2022-02-01 00:02:59,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 3521 states have (on average 1.458960522578813) internal successors, (5137), 3521 states have internal predecessors, (5137), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:59,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 5141 transitions. [2022-02-01 00:02:59,483 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 5141 transitions. Word has length 244 [2022-02-01 00:02:59,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:02:59,483 INFO L470 AbstractCegarLoop]: Abstraction has 3526 states and 5141 transitions. [2022-02-01 00:02:59,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:59,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 5141 transitions. [2022-02-01 00:02:59,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-02-01 00:02:59,489 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:02:59,489 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:02:59,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-01 00:02:59,490 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:02:59,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:02:59,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1863935726, now seen corresponding path program 1 times [2022-02-01 00:02:59,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:02:59,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1769861436] [2022-02-01 00:02:59,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:02:59,568 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:02:59,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:02:59,580 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:02:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:59,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:02:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:02:59,808 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:02:59,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1769861436] [2022-02-01 00:02:59,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1769861436] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:02:59,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:02:59,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:02:59,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553750979] [2022-02-01 00:02:59,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:02:59,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:02:59,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:02:59,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:02:59,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:02:59,810 INFO L87 Difference]: Start difference. First operand 3526 states and 5141 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:01,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:03:03,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:03:05,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:03:06,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:03:06,282 INFO L93 Difference]: Finished difference Result 7512 states and 10978 transitions. [2022-02-01 00:03:06,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:03:06,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-02-01 00:03:06,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:03:06,288 INFO L225 Difference]: With dead ends: 7512 [2022-02-01 00:03:06,288 INFO L226 Difference]: Without dead ends: 4014 [2022-02-01 00:03:06,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:03:06,293 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-01 00:03:06,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 600 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-01 00:03:06,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4014 states. [2022-02-01 00:03:06,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4014 to 4014. [2022-02-01 00:03:06,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4014 states, 4009 states have (on average 1.4584684459965078) internal successors, (5847), 4009 states have internal predecessors, (5847), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:06,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4014 states to 4014 states and 5851 transitions. [2022-02-01 00:03:06,566 INFO L78 Accepts]: Start accepts. Automaton has 4014 states and 5851 transitions. Word has length 277 [2022-02-01 00:03:06,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:03:06,567 INFO L470 AbstractCegarLoop]: Abstraction has 4014 states and 5851 transitions. [2022-02-01 00:03:06,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:06,567 INFO L276 IsEmpty]: Start isEmpty. Operand 4014 states and 5851 transitions. [2022-02-01 00:03:06,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-02-01 00:03:06,572 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:03:06,572 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:03:06,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-01 00:03:06,573 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:03:06,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:03:06,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1533638292, now seen corresponding path program 1 times [2022-02-01 00:03:06,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:03:06,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700512603] [2022-02-01 00:03:06,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:03:06,660 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:03:06,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:03:06,671 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:03:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:03:06,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:03:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:03:06,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:03:06,810 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:03:06,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700512603] [2022-02-01 00:03:06,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1700512603] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:03:06,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:03:06,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:03:06,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287632200] [2022-02-01 00:03:06,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:03:06,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:03:06,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:03:06,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:03:06,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:03:06,812 INFO L87 Difference]: Start difference. First operand 4014 states and 5851 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:08,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:03:10,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:03:12,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:03:13,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:03:13,499 INFO L93 Difference]: Finished difference Result 8463 states and 12363 transitions. [2022-02-01 00:03:13,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:03:13,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-02-01 00:03:13,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:03:13,507 INFO L225 Difference]: With dead ends: 8463 [2022-02-01 00:03:13,507 INFO L226 Difference]: Without dead ends: 4477 [2022-02-01 00:03:13,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:03:13,519 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 161 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 23 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:03:13,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 603 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 498 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-02-01 00:03:13,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4477 states. [2022-02-01 00:03:13,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4477 to 4477. [2022-02-01 00:03:13,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4477 states, 4472 states have (on average 1.4575134168157424) internal successors, (6518), 4472 states have internal predecessors, (6518), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:13,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 6522 transitions. [2022-02-01 00:03:13,946 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 6522 transitions. Word has length 277 [2022-02-01 00:03:13,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:03:13,947 INFO L470 AbstractCegarLoop]: Abstraction has 4477 states and 6522 transitions. [2022-02-01 00:03:13,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:13,947 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 6522 transitions. [2022-02-01 00:03:13,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-02-01 00:03:13,954 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:03:13,955 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:03:13,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-01 00:03:13,955 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:03:13,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:03:13,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1344227692, now seen corresponding path program 1 times [2022-02-01 00:03:13,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:03:13,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1955392907] [2022-02-01 00:03:13,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:03:25,188 WARN L228 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 276 DAG size of output: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:03:38,302 WARN L228 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 274 DAG size of output: 220 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:03:39,170 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:03:39,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:03:39,179 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:03:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:03:39,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:03:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:03:39,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:03:39,369 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:03:39,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1955392907] [2022-02-01 00:03:39,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1955392907] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:03:39,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:03:39,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:03:39,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134757485] [2022-02-01 00:03:39,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:03:39,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:03:39,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:03:39,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:03:39,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:03:39,371 INFO L87 Difference]: Start difference. First operand 4477 states and 6522 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:41,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:03:42,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:03:42,085 INFO L93 Difference]: Finished difference Result 9422 states and 13753 transitions. [2022-02-01 00:03:42,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:03:42,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 351 [2022-02-01 00:03:42,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:03:42,094 INFO L225 Difference]: With dead ends: 9422 [2022-02-01 00:03:42,095 INFO L226 Difference]: Without dead ends: 4973 [2022-02-01 00:03:42,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:03:42,102 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 160 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:03:42,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 388 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 303 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-01 00:03:42,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4973 states. [2022-02-01 00:03:42,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4973 to 4973. [2022-02-01 00:03:42,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4973 states, 4968 states have (on average 1.458937198067633) internal successors, (7248), 4968 states have internal predecessors, (7248), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:42,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4973 states to 4973 states and 7252 transitions. [2022-02-01 00:03:42,493 INFO L78 Accepts]: Start accepts. Automaton has 4973 states and 7252 transitions. Word has length 351 [2022-02-01 00:03:42,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:03:42,494 INFO L470 AbstractCegarLoop]: Abstraction has 4973 states and 7252 transitions. [2022-02-01 00:03:42,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:42,494 INFO L276 IsEmpty]: Start isEmpty. Operand 4973 states and 7252 transitions. [2022-02-01 00:03:42,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-02-01 00:03:42,504 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:03:42,504 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:03:42,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-01 00:03:42,504 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:03:42,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:03:42,505 INFO L85 PathProgramCache]: Analyzing trace with hash 827193860, now seen corresponding path program 1 times [2022-02-01 00:03:42,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:03:42,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758398682] [2022-02-01 00:03:42,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:03:55,408 WARN L228 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 276 DAG size of output: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:04:10,306 WARN L228 SmtUtils]: Spent 6.18s on a formula simplification. DAG size of input: 274 DAG size of output: 220 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:04:11,306 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:04:11,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:04:11,315 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:04:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:11,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:04:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:11,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:04:11,515 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:04:11,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758398682] [2022-02-01 00:04:11,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [758398682] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:04:11,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:04:11,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:04:11,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697414330] [2022-02-01 00:04:11,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:04:11,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:04:11,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:04:11,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:04:11,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:04:11,517 INFO L87 Difference]: Start difference. First operand 4973 states and 7252 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:12,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:04:14,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:04:16,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:04:17,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:04:17,718 INFO L93 Difference]: Finished difference Result 10414 states and 15213 transitions. [2022-02-01 00:04:17,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:04:17,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 392 [2022-02-01 00:04:17,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:04:17,729 INFO L225 Difference]: With dead ends: 10414 [2022-02-01 00:04:17,729 INFO L226 Difference]: Without dead ends: 5469 [2022-02-01 00:04:17,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:04:17,739 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 32 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-01 00:04:17,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 387 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 304 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-02-01 00:04:17,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5469 states. [2022-02-01 00:04:18,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5469 to 5469. [2022-02-01 00:04:18,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5469 states, 5464 states have (on average 1.460285505124451) internal successors, (7979), 5464 states have internal predecessors, (7979), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:18,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5469 states to 5469 states and 7983 transitions. [2022-02-01 00:04:18,242 INFO L78 Accepts]: Start accepts. Automaton has 5469 states and 7983 transitions. Word has length 392 [2022-02-01 00:04:18,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:04:18,243 INFO L470 AbstractCegarLoop]: Abstraction has 5469 states and 7983 transitions. [2022-02-01 00:04:18,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:18,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5469 states and 7983 transitions. [2022-02-01 00:04:18,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2022-02-01 00:04:18,251 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:04:18,251 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:04:18,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-01 00:04:18,251 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:04:18,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:04:18,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1414765987, now seen corresponding path program 1 times [2022-02-01 00:04:18,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:04:18,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811586157] [2022-02-01 00:04:18,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:04:18,366 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:04:18,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:04:18,378 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:04:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:18,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:04:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:18,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:04:18,562 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:04:18,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811586157] [2022-02-01 00:04:18,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1811586157] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:04:18,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:04:18,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:04:18,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537417482] [2022-02-01 00:04:18,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:04:18,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:04:18,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:04:18,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:04:18,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:04:18,563 INFO L87 Difference]: Start difference. First operand 5469 states and 7983 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:20,579 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 [] [2022-02-01 00:04:21,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:04:21,531 INFO L93 Difference]: Finished difference Result 11399 states and 16664 transitions. [2022-02-01 00:04:21,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:04:21,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (3), 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 400 [2022-02-01 00:04:21,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:04:21,542 INFO L225 Difference]: With dead ends: 11399 [2022-02-01 00:04:21,542 INFO L226 Difference]: Without dead ends: 5958 [2022-02-01 00:04:21,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:04:21,558 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:04:21,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 600 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:04:21,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5958 states. [2022-02-01 00:04:22,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5958 to 5958. [2022-02-01 00:04:22,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5958 states, 5953 states have (on average 1.4597681841088528) internal successors, (8690), 5953 states have internal predecessors, (8690), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:22,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 8694 transitions. [2022-02-01 00:04:22,115 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 8694 transitions. Word has length 400 [2022-02-01 00:04:22,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:04:22,115 INFO L470 AbstractCegarLoop]: Abstraction has 5958 states and 8694 transitions. [2022-02-01 00:04:22,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:22,116 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 8694 transitions. [2022-02-01 00:04:22,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2022-02-01 00:04:22,127 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:04:22,127 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:04:22,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-01 00:04:22,127 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:04:22,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:04:22,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1564547763, now seen corresponding path program 1 times [2022-02-01 00:04:22,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:04:22,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735261533] [2022-02-01 00:04:22,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:04:39,974 WARN L228 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 276 DAG size of output: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:04:58,472 WARN L228 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 274 DAG size of output: 220 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:04:59,931 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:04:59,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:04:59,941 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:00,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:00,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:05:00,159 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:00,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1735261533] [2022-02-01 00:05:00,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1735261533] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:00,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:00,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:05:00,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260431725] [2022-02-01 00:05:00,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:00,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:05:00,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:00,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:05:00,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:05:00,160 INFO L87 Difference]: Start difference. First operand 5958 states and 8694 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:03,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:04,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:05:04,319 INFO L93 Difference]: Finished difference Result 12384 states and 18097 transitions. [2022-02-01 00:05:04,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:05:04,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 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 475 [2022-02-01 00:05:04,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:05:04,328 INFO L225 Difference]: With dead ends: 12384 [2022-02-01 00:05:04,328 INFO L226 Difference]: Without dead ends: 6454 [2022-02-01 00:05:04,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:05:04,337 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 160 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-01 00:05:04,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 385 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 305 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-02-01 00:05:04,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6454 states. [2022-02-01 00:05:04,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6454 to 6454. [2022-02-01 00:05:04,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6454 states, 6449 states have (on average 1.461156768491239) internal successors, (9423), 6449 states have internal predecessors, (9423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:04,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6454 states to 6454 states and 9427 transitions. [2022-02-01 00:05:04,870 INFO L78 Accepts]: Start accepts. Automaton has 6454 states and 9427 transitions. Word has length 475 [2022-02-01 00:05:04,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:05:04,871 INFO L470 AbstractCegarLoop]: Abstraction has 6454 states and 9427 transitions. [2022-02-01 00:05:04,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:04,871 INFO L276 IsEmpty]: Start isEmpty. Operand 6454 states and 9427 transitions. [2022-02-01 00:05:04,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2022-02-01 00:05:04,881 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:05:04,881 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:05:04,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-01 00:05:04,881 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:05:04,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:05:04,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1557487184, now seen corresponding path program 1 times [2022-02-01 00:05:04,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:05:04,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [419760440] [2022-02-01 00:05:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:05:22,252 WARN L228 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 276 DAG size of output: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:05:36,038 WARN L228 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 274 DAG size of output: 220 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:05:43,421 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:05:43,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:05:43,431 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:43,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:43,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:05:43,727 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:43,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [419760440] [2022-02-01 00:05:43,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [419760440] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:43,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:43,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-01 00:05:43,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426672191] [2022-02-01 00:05:43,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:43,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-01 00:05:43,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:43,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-01 00:05:43,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-01 00:05:43,729 INFO L87 Difference]: Start difference. First operand 6454 states and 9427 transitions. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 6 states have internal predecessors, (201), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:44,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:46,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:49,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:51,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:53,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:54,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:05:54,286 INFO L93 Difference]: Finished difference Result 14073 states and 20553 transitions. [2022-02-01 00:05:54,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-01 00:05:54,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 6 states have internal predecessors, (201), 1 states have call successors, (3), 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 517 [2022-02-01 00:05:54,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:05:54,299 INFO L225 Difference]: With dead ends: 14073 [2022-02-01 00:05:54,299 INFO L226 Difference]: Without dead ends: 7647 [2022-02-01 00:05:54,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-01 00:05:54,314 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 123 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 51 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-02-01 00:05:54,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 709 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 679 Invalid, 3 Unknown, 0 Unchecked, 9.9s Time] [2022-02-01 00:05:54,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7647 states. [2022-02-01 00:05:54,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7647 to 6935. [2022-02-01 00:05:54,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6935 states, 6930 states have (on average 1.4610389610389611) internal successors, (10125), 6930 states have internal predecessors, (10125), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:54,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6935 states to 6935 states and 10129 transitions. [2022-02-01 00:05:54,902 INFO L78 Accepts]: Start accepts. Automaton has 6935 states and 10129 transitions. Word has length 517 [2022-02-01 00:05:54,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:05:54,903 INFO L470 AbstractCegarLoop]: Abstraction has 6935 states and 10129 transitions. [2022-02-01 00:05:54,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 6 states have internal predecessors, (201), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:54,903 INFO L276 IsEmpty]: Start isEmpty. Operand 6935 states and 10129 transitions. [2022-02-01 00:05:54,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-02-01 00:05:54,912 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:05:54,912 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:05:54,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-01 00:05:54,912 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:05:54,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:05:54,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1627641227, now seen corresponding path program 1 times [2022-02-01 00:05:54,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:05:54,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383586513] [2022-02-01 00:05:54,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:13,319 WARN L228 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 276 DAG size of output: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:06:28,054 WARN L228 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 274 DAG size of output: 220 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:06:34,346 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:34,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:34,356 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:34,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:34,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:06:34,654 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:34,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383586513] [2022-02-01 00:06:34,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1383586513] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:34,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:34,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:06:34,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297520376] [2022-02-01 00:06:34,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:34,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:06:34,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:34,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:06:34,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:06:34,655 INFO L87 Difference]: Start difference. First operand 6935 states and 10129 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:36,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:38,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:40,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:41,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:41,876 INFO L93 Difference]: Finished difference Result 14870 states and 21669 transitions. [2022-02-01 00:06:41,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:06:41,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 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 526 [2022-02-01 00:06:41,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:41,886 INFO L225 Difference]: With dead ends: 14870 [2022-02-01 00:06:41,887 INFO L226 Difference]: Without dead ends: 7963 [2022-02-01 00:06:41,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:06:41,898 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 64 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:41,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 717 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 594 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-02-01 00:06:41,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7963 states. [2022-02-01 00:06:42,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7963 to 7468. [2022-02-01 00:06:42,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7468 states, 7463 states have (on average 1.461208629237572) internal successors, (10905), 7463 states have internal predecessors, (10905), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:42,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7468 states to 7468 states and 10909 transitions. [2022-02-01 00:06:42,497 INFO L78 Accepts]: Start accepts. Automaton has 7468 states and 10909 transitions. Word has length 526 [2022-02-01 00:06:42,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:42,497 INFO L470 AbstractCegarLoop]: Abstraction has 7468 states and 10909 transitions. [2022-02-01 00:06:42,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:42,497 INFO L276 IsEmpty]: Start isEmpty. Operand 7468 states and 10909 transitions. [2022-02-01 00:06:42,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-02-01 00:06:42,506 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:42,507 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:06:42,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-01 00:06:42,507 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:42,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:42,507 INFO L85 PathProgramCache]: Analyzing trace with hash 835831439, now seen corresponding path program 1 times [2022-02-01 00:06:42,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:42,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037178881] [2022-02-01 00:06:42,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:07:01,421 WARN L228 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 276 DAG size of output: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:07:17,152 WARN L228 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 274 DAG size of output: 220 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:07:23,816 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:07:23,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:07:23,827 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:07:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:24,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:07:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:24,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:07:24,120 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:07:24,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037178881] [2022-02-01 00:07:24,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2037178881] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:07:24,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:07:24,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:07:24,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569173947] [2022-02-01 00:07:24,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:07:24,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:07:24,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:07:24,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:07:24,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:07:24,121 INFO L87 Difference]: Start difference. First operand 7468 states and 10909 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:27,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:28,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:07:28,394 INFO L93 Difference]: Finished difference Result 15476 states and 22632 transitions. [2022-02-01 00:07:28,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:07:28,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 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 526 [2022-02-01 00:07:28,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:07:28,404 INFO L225 Difference]: With dead ends: 15476 [2022-02-01 00:07:28,404 INFO L226 Difference]: Without dead ends: 8036 [2022-02-01 00:07:28,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:07:28,414 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-01 00:07:28,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 600 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-02-01 00:07:28,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8036 states. [2022-02-01 00:07:29,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8036 to 8036. [2022-02-01 00:07:29,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8036 states, 8031 states have (on average 1.460714730419624) internal successors, (11731), 8031 states have internal predecessors, (11731), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:29,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8036 states to 8036 states and 11735 transitions. [2022-02-01 00:07:29,038 INFO L78 Accepts]: Start accepts. Automaton has 8036 states and 11735 transitions. Word has length 526 [2022-02-01 00:07:29,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:07:29,039 INFO L470 AbstractCegarLoop]: Abstraction has 8036 states and 11735 transitions. [2022-02-01 00:07:29,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:29,039 INFO L276 IsEmpty]: Start isEmpty. Operand 8036 states and 11735 transitions. [2022-02-01 00:07:29,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2022-02-01 00:07:29,049 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:07:29,050 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:07:29,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-01 00:07:29,050 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:07:29,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:07:29,050 INFO L85 PathProgramCache]: Analyzing trace with hash 639100272, now seen corresponding path program 1 times [2022-02-01 00:07:29,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:07:29,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852739280] [2022-02-01 00:07:29,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:07:47,594 WARN L228 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 276 DAG size of output: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:08:01,461 WARN L228 SmtUtils]: Spent 6.33s on a formula simplification. DAG size of input: 274 DAG size of output: 220 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:08:10,199 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:10,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:10,211 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:10,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:10,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:08:10,441 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:10,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852739280] [2022-02-01 00:08:10,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [852739280] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:10,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:10,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:08:10,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50406460] [2022-02-01 00:08:10,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:10,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:08:10,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:10,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:08:10,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:08:10,443 INFO L87 Difference]: Start difference. First operand 8036 states and 11735 transitions. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:12,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:08:14,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:08:15,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:15,262 INFO L93 Difference]: Finished difference Result 16580 states and 24236 transitions. [2022-02-01 00:08:15,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:08:15,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 1 states have call successors, (3), 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 527 [2022-02-01 00:08:15,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:15,273 INFO L225 Difference]: With dead ends: 16580 [2022-02-01 00:08:15,273 INFO L226 Difference]: Without dead ends: 8572 [2022-02-01 00:08:15,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:08:15,285 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:15,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 600 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-01 00:08:15,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8572 states. [2022-02-01 00:08:16,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8572 to 8572. [2022-02-01 00:08:16,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8572 states, 8567 states have (on average 1.4601377378312128) internal successors, (12509), 8567 states have internal predecessors, (12509), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:16,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8572 states to 8572 states and 12513 transitions. [2022-02-01 00:08:16,051 INFO L78 Accepts]: Start accepts. Automaton has 8572 states and 12513 transitions. Word has length 527 [2022-02-01 00:08:16,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:16,052 INFO L470 AbstractCegarLoop]: Abstraction has 8572 states and 12513 transitions. [2022-02-01 00:08:16,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:16,052 INFO L276 IsEmpty]: Start isEmpty. Operand 8572 states and 12513 transitions. [2022-02-01 00:08:16,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2022-02-01 00:08:16,063 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:16,063 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:08:16,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-01 00:08:16,064 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:16,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:16,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1590256234, now seen corresponding path program 1 times [2022-02-01 00:08:16,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:16,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775826429] [2022-02-01 00:08:16,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:36,366 WARN L228 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 276 DAG size of output: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:08:51,752 WARN L228 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 274 DAG size of output: 220 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:09:00,375 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:09:00,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:09:00,387 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:09:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:00,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:09:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:00,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:09:00,667 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:09:00,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775826429] [2022-02-01 00:09:00,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1775826429] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:09:00,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:09:00,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:09:00,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330175817] [2022-02-01 00:09:00,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:09:00,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:09:00,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:09:00,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:09:00,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:09:00,668 INFO L87 Difference]: Start difference. First operand 8572 states and 12513 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:02,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:03,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:05,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:06,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:09:06,853 INFO L93 Difference]: Finished difference Result 17690 states and 25849 transitions. [2022-02-01 00:09:06,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:09:06,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (3), 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 613 [2022-02-01 00:09:06,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:09:06,863 INFO L225 Difference]: With dead ends: 17690 [2022-02-01 00:09:06,863 INFO L226 Difference]: Without dead ends: 9146 [2022-02-01 00:09:06,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:09:06,875 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:09:06,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 382 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 305 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-01 00:09:06,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9146 states. [2022-02-01 00:09:07,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9146 to 9146. [2022-02-01 00:09:07,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9146 states, 9141 states have (on average 1.461437479488021) internal successors, (13359), 9141 states have internal predecessors, (13359), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:07,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9146 states to 9146 states and 13363 transitions. [2022-02-01 00:09:07,665 INFO L78 Accepts]: Start accepts. Automaton has 9146 states and 13363 transitions. Word has length 613 [2022-02-01 00:09:07,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:09:07,666 INFO L470 AbstractCegarLoop]: Abstraction has 9146 states and 13363 transitions. [2022-02-01 00:09:07,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:07,666 INFO L276 IsEmpty]: Start isEmpty. Operand 9146 states and 13363 transitions. [2022-02-01 00:09:07,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2022-02-01 00:09:07,677 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:09:07,678 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:09:07,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-01 00:09:07,678 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:09:07,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:09:07,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1785371529, now seen corresponding path program 1 times [2022-02-01 00:09:07,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:09:07,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108922578] [2022-02-01 00:09:07,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:09:29,413 WARN L228 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 276 DAG size of output: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:09:47,054 WARN L228 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 274 DAG size of output: 220 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:09:55,829 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:09:55,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:09:55,840 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:09:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:56,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:09:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:56,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:09:56,148 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:09:56,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108922578] [2022-02-01 00:09:56,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2108922578] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:09:56,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:09:56,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:09:56,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096857022] [2022-02-01 00:09:56,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:09:56,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:09:56,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:09:56,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:09:56,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:09:56,150 INFO L87 Difference]: Start difference. First operand 9146 states and 13363 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:57,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:59,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:10:01,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:10:02,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:10:02,761 INFO L93 Difference]: Finished difference Result 18833 states and 27542 transitions. [2022-02-01 00:10:02,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:10:02,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 655 [2022-02-01 00:10:02,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:10:02,774 INFO L225 Difference]: With dead ends: 18833 [2022-02-01 00:10:02,774 INFO L226 Difference]: Without dead ends: 9715 [2022-02-01 00:10:02,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:10:02,788 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 22 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-01 00:10:02,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 600 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-02-01 00:10:02,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9715 states. [2022-02-01 00:10:03,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9715 to 9715. [2022-02-01 00:10:03,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9715 states, 9710 states have (on average 1.4609680741503606) internal successors, (14186), 9710 states have internal predecessors, (14186), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:10:03,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9715 states to 9715 states and 14190 transitions. [2022-02-01 00:10:03,599 INFO L78 Accepts]: Start accepts. Automaton has 9715 states and 14190 transitions. Word has length 655 [2022-02-01 00:10:03,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:10:03,599 INFO L470 AbstractCegarLoop]: Abstraction has 9715 states and 14190 transitions. [2022-02-01 00:10:03,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:10:03,599 INFO L276 IsEmpty]: Start isEmpty. Operand 9715 states and 14190 transitions. [2022-02-01 00:10:03,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2022-02-01 00:10:03,614 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:10:03,614 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:10:03,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-01 00:10:03,614 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:10:03,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:10:03,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1072419085, now seen corresponding path program 1 times [2022-02-01 00:10:03,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:10:03,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723136987] [2022-02-01 00:10:03,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:10:25,306 WARN L228 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 276 DAG size of output: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:10:45,388 WARN L228 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 274 DAG size of output: 220 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:10:51,813 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:10:51,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:10:51,828 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:10:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:10:52,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:10:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:10:52,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:10:52,079 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:10:52,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1723136987] [2022-02-01 00:10:52,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1723136987] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:10:52,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:10:52,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:10:52,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392895213] [2022-02-01 00:10:52,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:10:52,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:10:52,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:10:52,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:10:52,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:10:52,081 INFO L87 Difference]: Start difference. First operand 9715 states and 14190 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:10:54,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:10:56,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:10:58,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:10:58,359 INFO L93 Difference]: Finished difference Result 19939 states and 29148 transitions. [2022-02-01 00:10:58,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:10:58,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 1 states have call successors, (3), 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 656 [2022-02-01 00:10:58,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:10:58,375 INFO L225 Difference]: With dead ends: 19939 [2022-02-01 00:10:58,375 INFO L226 Difference]: Without dead ends: 10252 [2022-02-01 00:10:58,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:10:58,387 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 22 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:10:58,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 600 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-02-01 00:10:58,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10252 states. [2022-02-01 00:10:59,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10252 to 10252. [2022-02-01 00:10:59,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10252 states, 10247 states have (on average 1.4604274421781984) internal successors, (14965), 10247 states have internal predecessors, (14965), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:10:59,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10252 states to 10252 states and 14969 transitions. [2022-02-01 00:10:59,236 INFO L78 Accepts]: Start accepts. Automaton has 10252 states and 14969 transitions. Word has length 656 [2022-02-01 00:10:59,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:10:59,236 INFO L470 AbstractCegarLoop]: Abstraction has 10252 states and 14969 transitions. [2022-02-01 00:10:59,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:10:59,236 INFO L276 IsEmpty]: Start isEmpty. Operand 10252 states and 14969 transitions. [2022-02-01 00:10:59,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 745 [2022-02-01 00:10:59,249 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:10:59,249 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:10:59,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-01 00:10:59,249 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:10:59,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:10:59,250 INFO L85 PathProgramCache]: Analyzing trace with hash -42620356, now seen corresponding path program 1 times [2022-02-01 00:10:59,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:10:59,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905956861] [2022-02-01 00:10:59,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:11:24,621 WARN L228 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 276 DAG size of output: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:11:42,879 WARN L228 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 274 DAG size of output: 220 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:11:54,155 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:11:54,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:11:54,168 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:11:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:11:54,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:11:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:11:54,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:11:54,467 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:11:54,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905956861] [2022-02-01 00:11:54,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1905956861] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:11:54,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:11:54,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:11:54,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212924810] [2022-02-01 00:11:54,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:11:54,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:11:54,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:11:54,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:11:54,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:11:54,469 INFO L87 Difference]: Start difference. First operand 10252 states and 14969 transitions. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:11:55,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:11:57,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:11:59,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:11:59,427 INFO L93 Difference]: Finished difference Result 21050 states and 30761 transitions. [2022-02-01 00:11:59,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:11:59,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 1 states have call successors, (3), 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 744 [2022-02-01 00:11:59,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:11:59,441 INFO L225 Difference]: With dead ends: 21050 [2022-02-01 00:11:59,441 INFO L226 Difference]: Without dead ends: 10826 [2022-02-01 00:11:59,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:11:59,456 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 160 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-01 00:11:59,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 379 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-01 00:11:59,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10826 states. [2022-02-01 00:12:00,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10826 to 10826. [2022-02-01 00:12:00,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10826 states, 10821 states have (on average 1.4617872655022641) internal successors, (15818), 10821 states have internal predecessors, (15818), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:12:00,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10826 states to 10826 states and 15822 transitions. [2022-02-01 00:12:00,403 INFO L78 Accepts]: Start accepts. Automaton has 10826 states and 15822 transitions. Word has length 744 [2022-02-01 00:12:00,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:12:00,404 INFO L470 AbstractCegarLoop]: Abstraction has 10826 states and 15822 transitions. [2022-02-01 00:12:00,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:12:00,404 INFO L276 IsEmpty]: Start isEmpty. Operand 10826 states and 15822 transitions. [2022-02-01 00:12:00,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2022-02-01 00:12:00,417 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:12:00,418 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:12:00,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-01 00:12:00,418 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:12:00,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:12:00,418 INFO L85 PathProgramCache]: Analyzing trace with hash 25022982, now seen corresponding path program 1 times [2022-02-01 00:12:00,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:12:00,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046739812] [2022-02-01 00:12:00,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY