/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.10.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-02-01 00:04:28,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-01 00:04:28,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-01 00:04:29,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-01 00:04:29,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-01 00:04:29,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-01 00:04:29,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-01 00:04:29,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-01 00:04:29,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-01 00:04:29,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-01 00:04:29,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-01 00:04:29,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-01 00:04:29,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-01 00:04:29,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-01 00:04:29,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-01 00:04:29,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-01 00:04:29,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-01 00:04:29,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-01 00:04:29,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-01 00:04:29,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-01 00:04:29,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-01 00:04:29,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-01 00:04:29,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-01 00:04:29,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-01 00:04:29,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-01 00:04:29,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-01 00:04:29,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-01 00:04:29,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-01 00:04:29,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-01 00:04:29,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-01 00:04:29,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-01 00:04:29,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-01 00:04:29,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-01 00:04:29,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-01 00:04:29,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-01 00:04:29,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-01 00:04:29,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-01 00:04:29,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-01 00:04:29,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-01 00:04:29,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-01 00:04:29,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-01 00:04:29,071 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-01 00:04:29,078 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-01 00:04:29,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-01 00:04:29,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-01 00:04:29,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-01 00:04:29,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-01 00:04:29,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-01 00:04:29,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-01 00:04:29,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-01 00:04:29,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-01 00:04:29,080 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-01 00:04:29,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-01 00:04:29,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-01 00:04:29,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-01 00:04:29,081 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-01 00:04:29,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-01 00:04:29,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:04:29,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-01 00:04:29,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-01 00:04:29,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-01 00:04:29,082 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-01 00:04:29,082 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-01 00:04:29,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-01 00:04:29,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-01 00:04:29,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-01 00:04:29,292 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-01 00:04:29,293 INFO L275 PluginConnector]: CDTParser initialized [2022-02-01 00:04:29,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c [2022-02-01 00:04:29,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d67e3f14/2a5cd170e0c24d4fbc9c16c15d9fdafb/FLAG86bf36a9f [2022-02-01 00:04:29,819 INFO L306 CDTParser]: Found 1 translation units. [2022-02-01 00:04:29,820 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c [2022-02-01 00:04:29,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d67e3f14/2a5cd170e0c24d4fbc9c16c15d9fdafb/FLAG86bf36a9f [2022-02-01 00:04:29,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d67e3f14/2a5cd170e0c24d4fbc9c16c15d9fdafb [2022-02-01 00:04:29,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-01 00:04:29,878 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-01 00:04:29,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-01 00:04:29,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-01 00:04:29,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-01 00:04:29,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:04:29" (1/1) ... [2022-02-01 00:04:29,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255d0e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:04:29, skipping insertion in model container [2022-02-01 00:04:29,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:04:29" (1/1) ... [2022-02-01 00:04:29,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-01 00:04:29,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-01 00:04:30,304 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.10.i.cil-2.c[73311,73324] [2022-02-01 00:04:30,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:04:30,343 INFO L203 MainTranslator]: Completed pre-run [2022-02-01 00:04:30,446 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.10.i.cil-2.c[73311,73324] [2022-02-01 00:04:30,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:04:30,464 INFO L208 MainTranslator]: Completed translation [2022-02-01 00:04:30,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:04:30 WrapperNode [2022-02-01 00:04:30,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-01 00:04:30,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-01 00:04:30,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-01 00:04:30,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-01 00:04:30,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:04:30" (1/1) ... [2022-02-01 00:04:30,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:04:30" (1/1) ... [2022-02-01 00:04:30,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:04:30" (1/1) ... [2022-02-01 00:04:30,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:04:30" (1/1) ... [2022-02-01 00:04:30,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:04:30" (1/1) ... [2022-02-01 00:04:30,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:04:30" (1/1) ... [2022-02-01 00:04:30,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:04:30" (1/1) ... [2022-02-01 00:04:30,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-01 00:04:30,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-01 00:04:30,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-01 00:04:30,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-01 00:04:30,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:04:30" (1/1) ... [2022-02-01 00:04:30,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:04:30,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-01 00:04:30,606 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) [2022-02-01 00:04:30,623 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 [2022-02-01 00:04:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-01 00:04:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-01 00:04:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-01 00:04:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-01 00:04:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-01 00:04:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-01 00:04:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-01 00:04:30,655 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-01 00:04:30,655 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-01 00:04:30,655 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-01 00:04:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-01 00:04:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-01 00:04:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-01 00:04:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-01 00:04:30,656 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-01 00:04:30,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-01 00:04:30,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-01 00:04:30,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-01 00:04:30,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-01 00:04:30,657 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-01 00:04:30,657 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-01 00:04:30,657 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-01 00:04:30,657 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-01 00:04:30,658 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-01 00:04:30,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-01 00:04:30,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-01 00:04:30,658 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-01 00:04:30,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-01 00:04:30,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-01 00:04:30,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-01 00:04:30,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-01 00:04:30,658 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-01 00:04:30,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-01 00:04:30,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-01 00:04:30,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-01 00:04:30,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-01 00:04:30,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-01 00:04:30,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-01 00:04:30,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-01 00:04:30,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-01 00:04:30,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-01 00:04:30,783 INFO L234 CfgBuilder]: Building ICFG [2022-02-01 00:04:30,785 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-01 00:04:31,761 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-01 00:04:32,175 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-01 00:04:32,175 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-01 00:04:32,189 INFO L275 CfgBuilder]: Performing block encoding [2022-02-01 00:04:32,202 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-01 00:04:32,203 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-01 00:04:32,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:04:32 BoogieIcfgContainer [2022-02-01 00:04:32,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-01 00:04:32,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-01 00:04:32,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-01 00:04:32,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-01 00:04:32,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.02 12:04:29" (1/3) ... [2022-02-01 00:04:32,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1156cc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:04:32, skipping insertion in model container [2022-02-01 00:04:32,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:04:30" (2/3) ... [2022-02-01 00:04:32,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1156cc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:04:32, skipping insertion in model container [2022-02-01 00:04:32,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:04:32" (3/3) ... [2022-02-01 00:04:32,212 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.10.i.cil-2.c [2022-02-01 00:04:32,217 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-01 00:04:32,217 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-01 00:04:32,322 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-01 00:04:32,331 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 [2022-02-01 00:04:32,331 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-01 00:04:32,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 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) [2022-02-01 00:04:32,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-02-01 00:04:32,405 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:04:32,406 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] [2022-02-01 00:04:32,407 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:04:32,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:04:32,412 INFO L85 PathProgramCache]: Analyzing trace with hash 105535570, now seen corresponding path program 1 times [2022-02-01 00:04:32,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:04:32,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324269268] [2022-02-01 00:04:32,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:04:32,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:04:32,556 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:04:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:33,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:04:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:33,262 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 00:04:33,263 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:04:33,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324269268] [2022-02-01 00:04:33,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1324269268] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:04:33,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:04:33,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:04:33,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321490313] [2022-02-01 00:04:33,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:04:33,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:04:33,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:04:33,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:04:33,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:04:33,312 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 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 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 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 00:04:36,279 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 00:04:38,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:04:40,326 WARN L534 Checker$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 00:04:41,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:04:41,166 INFO L93 Difference]: Finished difference Result 421 states and 708 transitions. [2022-02-01 00:04:41,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:04:41,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 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 48 [2022-02-01 00:04:41,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:04:41,178 INFO L225 Difference]: With dead ends: 421 [2022-02-01 00:04:41,178 INFO L226 Difference]: Without dead ends: 255 [2022-02-01 00:04:41,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:04:41,186 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 148 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-01 00:04:41,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 443 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 526 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-02-01 00:04:41,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-02-01 00:04:41,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 179. [2022-02-01 00:04:41,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5977011494252873) internal successors, (278), 174 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:41,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 282 transitions. [2022-02-01 00:04:41,232 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 282 transitions. Word has length 48 [2022-02-01 00:04:41,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:04:41,233 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 282 transitions. [2022-02-01 00:04:41,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 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 00:04:41,234 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 282 transitions. [2022-02-01 00:04:41,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-02-01 00:04:41,235 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:04:41,236 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] [2022-02-01 00:04:41,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-01 00:04:41,236 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:04:41,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:04:41,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1029867406, now seen corresponding path program 1 times [2022-02-01 00:04:41,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:04:41,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077366258] [2022-02-01 00:04:41,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:04:41,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:04:41,241 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:04:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:41,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:04:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:41,488 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 00:04:41,489 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:04:41,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077366258] [2022-02-01 00:04:41,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2077366258] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:04:41,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:04:41,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:04:41,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775538014] [2022-02-01 00:04:41,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:04:41,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:04:41,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:04:41,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:04:41,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:04:41,491 INFO L87 Difference]: Start difference. First operand 179 states and 282 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 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 00:04:43,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:04:44,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:04:46,799 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 00:04:47,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:04:47,285 INFO L93 Difference]: Finished difference Result 371 states and 586 transitions. [2022-02-01 00:04:47,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:04:47,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 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 49 [2022-02-01 00:04:47,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:04:47,287 INFO L225 Difference]: With dead ends: 371 [2022-02-01 00:04:47,287 INFO L226 Difference]: Without dead ends: 207 [2022-02-01 00:04:47,288 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 00:04:47,289 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 22 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-01 00:04:47,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 463 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-02-01 00:04:47,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-02-01 00:04:47,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 190. [2022-02-01 00:04:47,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.6054054054054054) internal successors, (297), 185 states have internal predecessors, (297), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:47,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 301 transitions. [2022-02-01 00:04:47,314 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 301 transitions. Word has length 49 [2022-02-01 00:04:47,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:04:47,314 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 301 transitions. [2022-02-01 00:04:47,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 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 00:04:47,314 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 301 transitions. [2022-02-01 00:04:47,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-02-01 00:04:47,315 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:04:47,316 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:04:47,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-01 00:04:47,316 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:04:47,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:04:47,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1803075384, now seen corresponding path program 1 times [2022-02-01 00:04:47,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:04:47,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1858649532] [2022-02-01 00:04:47,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:04:47,346 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:04:47,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:04:47,351 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:04:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:47,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:04:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:47,515 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 00:04:47,515 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:04:47,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1858649532] [2022-02-01 00:04:47,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1858649532] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:04:47,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:04:47,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:04:47,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934984404] [2022-02-01 00:04:47,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:04:47,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:04:47,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:04:47,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:04:47,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:04:47,519 INFO L87 Difference]: Start difference. First operand 190 states and 301 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 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 00:04:49,535 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 00:04:49,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:04:49,943 INFO L93 Difference]: Finished difference Result 371 states and 585 transitions. [2022-02-01 00:04:49,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:04:49,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 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 62 [2022-02-01 00:04:49,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:04:49,945 INFO L225 Difference]: With dead ends: 371 [2022-02-01 00:04:49,945 INFO L226 Difference]: Without dead ends: 207 [2022-02-01 00:04:49,946 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 00:04:49,947 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 24 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:04:49,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 465 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 354 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:04:49,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-02-01 00:04:49,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 190. [2022-02-01 00:04:49,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.6) internal successors, (296), 185 states have internal predecessors, (296), 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 00:04:49,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 300 transitions. [2022-02-01 00:04:49,962 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 300 transitions. Word has length 62 [2022-02-01 00:04:49,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:04:49,962 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 300 transitions. [2022-02-01 00:04:49,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 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 00:04:49,962 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 300 transitions. [2022-02-01 00:04:49,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-01 00:04:49,964 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:04:49,964 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:04:49,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-01 00:04:49,965 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:04:49,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:04:49,965 INFO L85 PathProgramCache]: Analyzing trace with hash 379746120, now seen corresponding path program 1 times [2022-02-01 00:04:49,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:04:49,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398540293] [2022-02-01 00:04:49,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:04:49,974 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:04:49,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:04:49,977 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:04:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:50,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:04:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:50,112 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 00:04:50,113 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:04:50,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398540293] [2022-02-01 00:04:50,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [398540293] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:04:50,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:04:50,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:04:50,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779134591] [2022-02-01 00:04:50,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:04:50,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:04:50,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:04:50,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:04:50,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:04:50,115 INFO L87 Difference]: Start difference. First operand 190 states and 300 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 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 00:04:51,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:04:54,018 WARN L534 Checker$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 00:04:56,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:04:57,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:04:57,375 INFO L93 Difference]: Finished difference Result 370 states and 583 transitions. [2022-02-01 00:04:57,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:04:57,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 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 63 [2022-02-01 00:04:57,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:04:57,378 INFO L225 Difference]: With dead ends: 370 [2022-02-01 00:04:57,378 INFO L226 Difference]: Without dead ends: 206 [2022-02-01 00:04:57,379 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 00:04:57,379 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 28 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-01 00:04:57,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 467 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 355 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-02-01 00:04:57,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-02-01 00:04:57,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 190. [2022-02-01 00:04:57,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.5945945945945945) internal successors, (295), 185 states have internal predecessors, (295), 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 00:04:57,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 299 transitions. [2022-02-01 00:04:57,397 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 299 transitions. Word has length 63 [2022-02-01 00:04:57,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:04:57,397 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 299 transitions. [2022-02-01 00:04:57,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 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 00:04:57,398 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 299 transitions. [2022-02-01 00:04:57,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-01 00:04:57,406 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:04:57,406 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:04:57,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-01 00:04:57,406 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:04:57,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:04:57,407 INFO L85 PathProgramCache]: Analyzing trace with hash -667764684, now seen corresponding path program 1 times [2022-02-01 00:04:57,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:04:57,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223576008] [2022-02-01 00:04:57,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:04:57,418 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:04:57,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:04:57,423 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:04:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:57,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:04:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:57,607 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 00:04:57,607 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:04:57,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223576008] [2022-02-01 00:04:57,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1223576008] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:04:57,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:04:57,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:04:57,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209079797] [2022-02-01 00:04:57,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:04:57,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:04:57,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:04:57,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:04:57,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:04:57,610 INFO L87 Difference]: Start difference. First operand 190 states and 299 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 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 00:04:58,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:00,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:03,589 WARN L534 Checker$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 00:05:04,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:05:04,224 INFO L93 Difference]: Finished difference Result 469 states and 740 transitions. [2022-02-01 00:05:04,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:05:04,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 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 63 [2022-02-01 00:05:04,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:05:04,226 INFO L225 Difference]: With dead ends: 469 [2022-02-01 00:05:04,226 INFO L226 Difference]: Without dead ends: 305 [2022-02-01 00:05:04,226 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 00:05:04,227 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 143 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-01 00:05:04,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 326 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-02-01 00:05:04,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-02-01 00:05:04,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 202. [2022-02-01 00:05:04,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.5786802030456852) internal successors, (311), 197 states have internal predecessors, (311), 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 00:05:04,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 315 transitions. [2022-02-01 00:05:04,240 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 315 transitions. Word has length 63 [2022-02-01 00:05:04,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:05:04,241 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 315 transitions. [2022-02-01 00:05:04,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 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 00:05:04,241 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 315 transitions. [2022-02-01 00:05:04,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-01 00:05:04,242 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:05:04,242 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:05:04,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-01 00:05:04,242 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:05:04,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:05:04,243 INFO L85 PathProgramCache]: Analyzing trace with hash 2000602589, now seen corresponding path program 1 times [2022-02-01 00:05:04,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:05:04,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754135841] [2022-02-01 00:05:04,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:05:04,253 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:05:04,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:05:04,256 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:04,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:04,362 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 00:05:04,362 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:04,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754135841] [2022-02-01 00:05:04,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [754135841] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:04,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:04,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:05:04,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604189831] [2022-02-01 00:05:04,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:04,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:05:04,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:04,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:05:04,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:05:04,365 INFO L87 Difference]: Start difference. First operand 202 states and 315 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 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 00:05:05,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:07,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:09,642 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 00:05:10,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:05:10,047 INFO L93 Difference]: Finished difference Result 392 states and 613 transitions. [2022-02-01 00:05:10,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:05:10,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 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 63 [2022-02-01 00:05:10,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:05:10,049 INFO L225 Difference]: With dead ends: 392 [2022-02-01 00:05:10,049 INFO L226 Difference]: Without dead ends: 216 [2022-02-01 00:05:10,049 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 00:05:10,050 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-01 00:05:10,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 471 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-01 00:05:10,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-02-01 00:05:10,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 202. [2022-02-01 00:05:10,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.5736040609137056) internal successors, (310), 197 states have internal predecessors, (310), 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 00:05:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 314 transitions. [2022-02-01 00:05:10,063 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 314 transitions. Word has length 63 [2022-02-01 00:05:10,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:05:10,063 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 314 transitions. [2022-02-01 00:05:10,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 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 00:05:10,064 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 314 transitions. [2022-02-01 00:05:10,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-01 00:05:10,064 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:05:10,064 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:05:10,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-01 00:05:10,065 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:05:10,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:05:10,065 INFO L85 PathProgramCache]: Analyzing trace with hash 2141329276, now seen corresponding path program 1 times [2022-02-01 00:05:10,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:05:10,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545895834] [2022-02-01 00:05:10,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:05:10,068 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:05:10,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:05:10,072 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:10,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:10,165 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 00:05:10,166 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:10,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545895834] [2022-02-01 00:05:10,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [545895834] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:10,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:10,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:05:10,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232583867] [2022-02-01 00:05:10,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:10,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:05:10,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:10,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:05:10,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:05:10,168 INFO L87 Difference]: Start difference. First operand 202 states and 314 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 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 00:05:11,907 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 00:05:13,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:15,963 WARN L534 Checker$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 00:05:17,989 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 00:05:18,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:05:18,336 INFO L93 Difference]: Finished difference Result 391 states and 611 transitions. [2022-02-01 00:05:18,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:05:18,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 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 63 [2022-02-01 00:05:18,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:05:18,342 INFO L225 Difference]: With dead ends: 391 [2022-02-01 00:05:18,342 INFO L226 Difference]: Without dead ends: 215 [2022-02-01 00:05:18,342 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 00:05:18,343 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 18 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:05:18,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 473 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 347 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-02-01 00:05:18,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-02-01 00:05:18,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 202. [2022-02-01 00:05:18,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.5685279187817258) internal successors, (309), 197 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:18,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 313 transitions. [2022-02-01 00:05:18,356 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 313 transitions. Word has length 63 [2022-02-01 00:05:18,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:05:18,356 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 313 transitions. [2022-02-01 00:05:18,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 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 00:05:18,356 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 313 transitions. [2022-02-01 00:05:18,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-01 00:05:18,357 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:05:18,357 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:05:18,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-01 00:05:18,357 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:05:18,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:05:18,358 INFO L85 PathProgramCache]: Analyzing trace with hash -768968849, now seen corresponding path program 1 times [2022-02-01 00:05:18,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:05:18,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932258666] [2022-02-01 00:05:18,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:05:18,365 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:05:18,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:05:18,369 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:18,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:18,451 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 00:05:18,452 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:18,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932258666] [2022-02-01 00:05:18,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1932258666] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:18,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:18,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:05:18,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652215323] [2022-02-01 00:05:18,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:18,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:05:18,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:18,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:05:18,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:05:18,453 INFO L87 Difference]: Start difference. First operand 202 states and 313 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:22,606 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 00:05:23,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:05:23,050 INFO L93 Difference]: Finished difference Result 481 states and 752 transitions. [2022-02-01 00:05:23,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:05:23,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-02-01 00:05:23,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:05:23,051 INFO L225 Difference]: With dead ends: 481 [2022-02-01 00:05:23,051 INFO L226 Difference]: Without dead ends: 305 [2022-02-01 00:05:23,052 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 00:05:23,052 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 141 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-01 00:05:23,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 326 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-01 00:05:23,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-02-01 00:05:23,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 203. [2022-02-01 00:05:23,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 198 states have (on average 1.5555555555555556) internal successors, (308), 198 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) [2022-02-01 00:05:23,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 312 transitions. [2022-02-01 00:05:23,060 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 312 transitions. Word has length 64 [2022-02-01 00:05:23,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:05:23,060 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 312 transitions. [2022-02-01 00:05:23,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:23,060 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 312 transitions. [2022-02-01 00:05:23,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-01 00:05:23,061 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:05:23,061 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:05:23,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-01 00:05:23,061 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:05:23,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:05:23,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1233099857, now seen corresponding path program 1 times [2022-02-01 00:05:23,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:05:23,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905571558] [2022-02-01 00:05:23,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:05:23,067 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:05:23,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:05:23,070 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:23,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:23,141 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 00:05:23,142 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:23,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905571558] [2022-02-01 00:05:23,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1905571558] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:23,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:23,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:05:23,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884903537] [2022-02-01 00:05:23,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:23,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:05:23,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:23,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:05:23,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:05:23,143 INFO L87 Difference]: Start difference. First operand 203 states and 312 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:24,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:26,092 WARN L534 Checker$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 00:05:28,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:30,141 WARN L534 Checker$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 00:05:30,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:05:30,484 INFO L93 Difference]: Finished difference Result 393 states and 609 transitions. [2022-02-01 00:05:30,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:05:30,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-01 00:05:30,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:05:30,486 INFO L225 Difference]: With dead ends: 393 [2022-02-01 00:05:30,486 INFO L226 Difference]: Without dead ends: 216 [2022-02-01 00:05:30,486 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 00:05:30,486 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 20 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:05:30,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 473 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 348 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-02-01 00:05:30,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-02-01 00:05:30,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 203. [2022-02-01 00:05:30,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 198 states have (on average 1.5505050505050506) internal successors, (307), 198 states have internal predecessors, (307), 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 00:05:30,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 311 transitions. [2022-02-01 00:05:30,494 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 311 transitions. Word has length 65 [2022-02-01 00:05:30,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:05:30,494 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 311 transitions. [2022-02-01 00:05:30,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:30,494 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 311 transitions. [2022-02-01 00:05:30,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-01 00:05:30,494 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:05:30,495 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:05:30,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-01 00:05:30,495 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:05:30,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:05:30,495 INFO L85 PathProgramCache]: Analyzing trace with hash -63061110, now seen corresponding path program 1 times [2022-02-01 00:05:30,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:05:30,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693536402] [2022-02-01 00:05:30,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:05:30,504 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:05:30,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:05:30,508 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:30,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:30,616 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 00:05:30,616 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:30,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693536402] [2022-02-01 00:05:30,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [693536402] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:30,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:30,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:05:30,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473155503] [2022-02-01 00:05:30,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:30,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:05:30,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:30,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:05:30,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:05:30,617 INFO L87 Difference]: Start difference. First operand 203 states and 311 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:33,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:35,233 WARN L534 Checker$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 00:05:36,660 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 00:05:37,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:05:37,106 INFO L93 Difference]: Finished difference Result 482 states and 748 transitions. [2022-02-01 00:05:37,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:05:37,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-01 00:05:37,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:05:37,107 INFO L225 Difference]: With dead ends: 482 [2022-02-01 00:05:37,107 INFO L226 Difference]: Without dead ends: 305 [2022-02-01 00:05:37,108 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 00:05:37,108 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 138 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:05:37,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 326 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-02-01 00:05:37,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-02-01 00:05:37,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 205. [2022-02-01 00:05:37,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.54) internal successors, (308), 200 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) [2022-02-01 00:05:37,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 312 transitions. [2022-02-01 00:05:37,117 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 312 transitions. Word has length 66 [2022-02-01 00:05:37,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:05:37,117 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 312 transitions. [2022-02-01 00:05:37,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:37,117 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 312 transitions. [2022-02-01 00:05:37,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-01 00:05:37,118 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:05:37,118 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:05:37,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-01 00:05:37,118 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:05:37,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:05:37,119 INFO L85 PathProgramCache]: Analyzing trace with hash 734010945, now seen corresponding path program 1 times [2022-02-01 00:05:37,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:05:37,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25286887] [2022-02-01 00:05:37,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:05:37,124 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:05:37,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:05:37,127 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:37,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:37,234 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 00:05:37,235 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:37,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25286887] [2022-02-01 00:05:37,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [25286887] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:37,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:37,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:05:37,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632166896] [2022-02-01 00:05:37,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:37,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:05:37,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:37,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:05:37,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:05:37,236 INFO L87 Difference]: Start difference. First operand 205 states and 312 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:39,885 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 00:05:41,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:43,932 WARN L534 Checker$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 00:05:44,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:05:44,388 INFO L93 Difference]: Finished difference Result 484 states and 747 transitions. [2022-02-01 00:05:44,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:05:44,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-01 00:05:44,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:05:44,390 INFO L225 Difference]: With dead ends: 484 [2022-02-01 00:05:44,390 INFO L226 Difference]: Without dead ends: 305 [2022-02-01 00:05:44,390 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 00:05:44,391 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 113 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 62 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:05:44,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 476 Invalid, 3 Unknown, 0 Unchecked, 7.1s Time] [2022-02-01 00:05:44,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-02-01 00:05:44,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 230. [2022-02-01 00:05:44,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.5866666666666667) internal successors, (357), 225 states have internal predecessors, (357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:44,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 361 transitions. [2022-02-01 00:05:44,398 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 361 transitions. Word has length 66 [2022-02-01 00:05:44,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:05:44,398 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 361 transitions. [2022-02-01 00:05:44,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:44,399 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 361 transitions. [2022-02-01 00:05:44,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-02-01 00:05:44,401 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:05:44,401 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] [2022-02-01 00:05:44,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-01 00:05:44,401 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:05:44,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:05:44,402 INFO L85 PathProgramCache]: Analyzing trace with hash 115161398, now seen corresponding path program 1 times [2022-02-01 00:05:44,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:05:44,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726931876] [2022-02-01 00:05:44,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:05:44,418 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:05:44,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:05:44,422 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:44,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:44,544 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 00:05:44,545 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:44,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726931876] [2022-02-01 00:05:44,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1726931876] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:44,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:44,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:05:44,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842931133] [2022-02-01 00:05:44,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:44,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:05:44,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:44,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:05:44,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:05:44,546 INFO L87 Difference]: Start difference. First operand 230 states and 361 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:46,557 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 00:05:47,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:05:47,011 INFO L93 Difference]: Finished difference Result 585 states and 931 transitions. [2022-02-01 00:05:47,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:05:47,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-02-01 00:05:47,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:05:47,013 INFO L225 Difference]: With dead ends: 585 [2022-02-01 00:05:47,013 INFO L226 Difference]: Without dead ends: 381 [2022-02-01 00:05:47,013 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 00:05:47,014 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 119 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:05:47,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 336 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:05:47,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-02-01 00:05:47,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 294. [2022-02-01 00:05:47,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 289 states have (on average 1.6159169550173011) internal successors, (467), 289 states have internal predecessors, (467), 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 00:05:47,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 471 transitions. [2022-02-01 00:05:47,026 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 471 transitions. Word has length 94 [2022-02-01 00:05:47,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:05:47,029 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 471 transitions. [2022-02-01 00:05:47,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:47,029 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 471 transitions. [2022-02-01 00:05:47,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-02-01 00:05:47,030 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:05:47,030 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, 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] [2022-02-01 00:05:47,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-01 00:05:47,031 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:05:47,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:05:47,032 INFO L85 PathProgramCache]: Analyzing trace with hash -917913434, now seen corresponding path program 1 times [2022-02-01 00:05:47,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:05:47,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597377578] [2022-02-01 00:05:47,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:05:47,048 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:05:47,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:05:47,052 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:47,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:47,133 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 00:05:47,133 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:47,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597377578] [2022-02-01 00:05:47,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [597377578] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:47,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:47,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:05:47,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812012465] [2022-02-01 00:05:47,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:47,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:05:47,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:47,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:05:47,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:05:47,135 INFO L87 Difference]: Start difference. First operand 294 states and 471 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 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 00:05:48,279 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 00:05:51,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:53,069 WARN L534 Checker$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 00:05:53,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:05:53,516 INFO L93 Difference]: Finished difference Result 677 states and 1084 transitions. [2022-02-01 00:05:53,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:05:53,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 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 99 [2022-02-01 00:05:53,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:05:53,518 INFO L225 Difference]: With dead ends: 677 [2022-02-01 00:05:53,518 INFO L226 Difference]: Without dead ends: 409 [2022-02-01 00:05:53,519 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 00:05:53,519 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 115 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:05:53,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 324 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-02-01 00:05:53,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-02-01 00:05:53,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 331. [2022-02-01 00:05:53,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 326 states have (on average 1.6257668711656441) internal successors, (530), 326 states have internal predecessors, (530), 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 00:05:53,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 534 transitions. [2022-02-01 00:05:53,531 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 534 transitions. Word has length 99 [2022-02-01 00:05:53,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:05:53,531 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 534 transitions. [2022-02-01 00:05:53,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 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 00:05:53,532 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 534 transitions. [2022-02-01 00:05:53,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-01 00:05:53,532 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:05:53,533 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, 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] [2022-02-01 00:05:53,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-01 00:05:53,533 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:05:53,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:05:53,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1533946012, now seen corresponding path program 1 times [2022-02-01 00:05:53,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:05:53,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621365754] [2022-02-01 00:05:53,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:05:53,547 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:05:53,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:05:53,550 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:53,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:53,675 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 00:05:53,675 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:53,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621365754] [2022-02-01 00:05:53,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1621365754] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:53,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:53,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:05:53,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95041596] [2022-02-01 00:05:53,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:53,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:05:53,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:53,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:05:53,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:05:53,677 INFO L87 Difference]: Start difference. First operand 331 states and 534 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:55,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:57,457 WARN L534 Checker$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 00:05:59,483 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 00:06:00,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:00,391 INFO L93 Difference]: Finished difference Result 711 states and 1141 transitions. [2022-02-01 00:06:00,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:06:00,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-02-01 00:06:00,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:00,392 INFO L225 Difference]: With dead ends: 711 [2022-02-01 00:06:00,393 INFO L226 Difference]: Without dead ends: 406 [2022-02-01 00:06:00,393 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 00:06:00,394 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 114 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:00,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 477 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-02-01 00:06:00,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2022-02-01 00:06:00,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 331. [2022-02-01 00:06:00,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 326 states have (on average 1.6196319018404908) internal successors, (528), 326 states have internal predecessors, (528), 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 00:06:00,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 532 transitions. [2022-02-01 00:06:00,406 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 532 transitions. Word has length 100 [2022-02-01 00:06:00,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:00,407 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 532 transitions. [2022-02-01 00:06:00,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:00,407 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 532 transitions. [2022-02-01 00:06:00,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-02-01 00:06:00,408 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:00,408 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] [2022-02-01 00:06:00,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-01 00:06:00,408 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:00,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:00,408 INFO L85 PathProgramCache]: Analyzing trace with hash -928235330, now seen corresponding path program 1 times [2022-02-01 00:06:00,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:00,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755871259] [2022-02-01 00:06:00,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:00,424 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:00,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:00,428 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:00,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:00,507 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 00:06:00,507 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:00,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755871259] [2022-02-01 00:06:00,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [755871259] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:00,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:00,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:06:00,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323796993] [2022-02-01 00:06:00,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:00,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:06:00,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:00,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:06:00,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:06:00,508 INFO L87 Difference]: Start difference. First operand 331 states and 532 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:02,767 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 [] [2022-02-01 00:06:04,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:04,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:04,593 INFO L93 Difference]: Finished difference Result 751 states and 1204 transitions. [2022-02-01 00:06:04,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:06:04,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 107 [2022-02-01 00:06:04,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:04,595 INFO L225 Difference]: With dead ends: 751 [2022-02-01 00:06:04,595 INFO L226 Difference]: Without dead ends: 446 [2022-02-01 00:06:04,596 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 00:06:04,596 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 135 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:04,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 340 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-01 00:06:04,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-02-01 00:06:04,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 347. [2022-02-01 00:06:04,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 342 states have (on average 1.5994152046783625) internal successors, (547), 342 states have internal predecessors, (547), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:04,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 551 transitions. [2022-02-01 00:06:04,610 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 551 transitions. Word has length 107 [2022-02-01 00:06:04,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:04,610 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 551 transitions. [2022-02-01 00:06:04,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:04,610 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 551 transitions. [2022-02-01 00:06:04,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-02-01 00:06:04,611 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:04,611 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:06:04,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-01 00:06:04,611 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:04,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:04,612 INFO L85 PathProgramCache]: Analyzing trace with hash -16281119, now seen corresponding path program 1 times [2022-02-01 00:06:04,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:04,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656391140] [2022-02-01 00:06:04,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:04,626 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:04,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:04,630 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:04,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:04,707 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 00:06:04,707 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:04,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [656391140] [2022-02-01 00:06:04,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [656391140] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:04,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:04,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:06:04,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411025914] [2022-02-01 00:06:04,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:04,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:06:04,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:04,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:06:04,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:06:04,708 INFO L87 Difference]: Start difference. First operand 347 states and 551 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:06,725 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 00:06:07,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:07,135 INFO L93 Difference]: Finished difference Result 758 states and 1207 transitions. [2022-02-01 00:06:07,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:06:07,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-02-01 00:06:07,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:07,137 INFO L225 Difference]: With dead ends: 758 [2022-02-01 00:06:07,137 INFO L226 Difference]: Without dead ends: 437 [2022-02-01 00:06:07,138 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 00:06:07,138 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 97 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:07,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 405 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:06:07,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-02-01 00:06:07,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 364. [2022-02-01 00:06:07,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 359 states have (on average 1.5905292479108635) internal successors, (571), 359 states have internal predecessors, (571), 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 00:06:07,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 575 transitions. [2022-02-01 00:06:07,154 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 575 transitions. Word has length 108 [2022-02-01 00:06:07,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:07,154 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 575 transitions. [2022-02-01 00:06:07,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:07,155 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 575 transitions. [2022-02-01 00:06:07,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-02-01 00:06:07,155 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:07,156 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, 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] [2022-02-01 00:06:07,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-01 00:06:07,156 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:07,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:07,156 INFO L85 PathProgramCache]: Analyzing trace with hash 836154803, now seen corresponding path program 1 times [2022-02-01 00:06:07,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:07,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307321966] [2022-02-01 00:06:07,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:07,177 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:07,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:07,181 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:07,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:07,255 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 00:06:07,255 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:07,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307321966] [2022-02-01 00:06:07,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [307321966] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:07,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:07,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:06:07,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548928868] [2022-02-01 00:06:07,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:07,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:06:07,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:07,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:06:07,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:06:07,256 INFO L87 Difference]: Start difference. First operand 364 states and 575 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:10,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:12,706 WARN L534 Checker$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 00:06:13,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:13,126 INFO L93 Difference]: Finished difference Result 726 states and 1155 transitions. [2022-02-01 00:06:13,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:06:13,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-02-01 00:06:13,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:13,127 INFO L225 Difference]: With dead ends: 726 [2022-02-01 00:06:13,128 INFO L226 Difference]: Without dead ends: 388 [2022-02-01 00:06:13,128 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 00:06:13,129 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 29 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:13,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 489 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 386 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-02-01 00:06:13,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-02-01 00:06:13,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 369. [2022-02-01 00:06:13,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 364 states have (on average 1.5934065934065933) internal successors, (580), 364 states have internal predecessors, (580), 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 00:06:13,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 584 transitions. [2022-02-01 00:06:13,145 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 584 transitions. Word has length 108 [2022-02-01 00:06:13,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:13,145 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 584 transitions. [2022-02-01 00:06:13,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:13,145 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 584 transitions. [2022-02-01 00:06:13,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-02-01 00:06:13,146 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:13,146 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] [2022-02-01 00:06:13,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-01 00:06:13,146 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:13,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:13,147 INFO L85 PathProgramCache]: Analyzing trace with hash -566544152, now seen corresponding path program 1 times [2022-02-01 00:06:13,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:13,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741548365] [2022-02-01 00:06:13,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:13,171 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:13,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:13,177 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:13,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:13,260 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 00:06:13,260 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:13,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741548365] [2022-02-01 00:06:13,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1741548365] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:13,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:13,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:06:13,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401581974] [2022-02-01 00:06:13,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:13,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:06:13,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:13,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:06:13,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:06:13,261 INFO L87 Difference]: Start difference. First operand 369 states and 584 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 00:06:16,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:17,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:17,431 INFO L93 Difference]: Finished difference Result 786 states and 1240 transitions. [2022-02-01 00:06:17,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:06:17,431 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 121 [2022-02-01 00:06:17,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:17,433 INFO L225 Difference]: With dead ends: 786 [2022-02-01 00:06:17,433 INFO L226 Difference]: Without dead ends: 443 [2022-02-01 00:06:17,433 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 00:06:17,434 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 140 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:17,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 342 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-01 00:06:17,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-02-01 00:06:17,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 369. [2022-02-01 00:06:17,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 364 states have (on average 1.5741758241758241) internal successors, (573), 364 states have internal predecessors, (573), 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 00:06:17,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 577 transitions. [2022-02-01 00:06:17,449 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 577 transitions. Word has length 121 [2022-02-01 00:06:17,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:17,449 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 577 transitions. [2022-02-01 00:06:17,449 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 00:06:17,449 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 577 transitions. [2022-02-01 00:06:17,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-02-01 00:06:17,450 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:17,450 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-02-01 00:06:17,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-01 00:06:17,450 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:17,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:17,451 INFO L85 PathProgramCache]: Analyzing trace with hash -870728149, now seen corresponding path program 1 times [2022-02-01 00:06:17,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:17,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276697458] [2022-02-01 00:06:17,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:17,467 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:17,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:17,472 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:17,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:17,549 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 00:06:17,549 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:17,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276697458] [2022-02-01 00:06:17,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1276697458] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:17,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:17,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:06:17,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41851342] [2022-02-01 00:06:17,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:17,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:06:17,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:17,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:06:17,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:06:17,550 INFO L87 Difference]: Start difference. First operand 369 states and 577 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:19,557 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 00:06:20,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:20,027 INFO L93 Difference]: Finished difference Result 802 states and 1258 transitions. [2022-02-01 00:06:20,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:06:20,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-02-01 00:06:20,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:20,029 INFO L225 Difference]: With dead ends: 802 [2022-02-01 00:06:20,029 INFO L226 Difference]: Without dead ends: 459 [2022-02-01 00:06:20,030 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 00:06:20,030 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 96 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:20,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 487 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 512 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:06:20,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-02-01 00:06:20,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 387. [2022-02-01 00:06:20,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5628272251308901) internal successors, (597), 382 states have internal predecessors, (597), 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 00:06:20,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 601 transitions. [2022-02-01 00:06:20,046 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 601 transitions. Word has length 122 [2022-02-01 00:06:20,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:20,047 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 601 transitions. [2022-02-01 00:06:20,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:20,047 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 601 transitions. [2022-02-01 00:06:20,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-02-01 00:06:20,048 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:20,048 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-02-01 00:06:20,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-01 00:06:20,048 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:20,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:20,049 INFO L85 PathProgramCache]: Analyzing trace with hash -18292227, now seen corresponding path program 1 times [2022-02-01 00:06:20,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:20,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073002841] [2022-02-01 00:06:20,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:20,069 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:20,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:20,074 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:20,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:20,157 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 00:06:20,157 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:20,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2073002841] [2022-02-01 00:06:20,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2073002841] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:20,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:20,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:06:20,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287199462] [2022-02-01 00:06:20,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:20,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:06:20,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:20,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:06:20,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:06:20,158 INFO L87 Difference]: Start difference. First operand 387 states and 601 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 00:06:23,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:25,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:26,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:27,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:27,035 INFO L93 Difference]: Finished difference Result 821 states and 1273 transitions. [2022-02-01 00:06:27,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:06:27,036 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 122 [2022-02-01 00:06:27,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:27,037 INFO L225 Difference]: With dead ends: 821 [2022-02-01 00:06:27,037 INFO L226 Difference]: Without dead ends: 460 [2022-02-01 00:06:27,038 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 00:06:27,038 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 132 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:27,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 344 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-02-01 00:06:27,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-02-01 00:06:27,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 387. [2022-02-01 00:06:27,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5471204188481675) internal successors, (591), 382 states have internal predecessors, (591), 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 00:06:27,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 595 transitions. [2022-02-01 00:06:27,055 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 595 transitions. Word has length 122 [2022-02-01 00:06:27,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:27,055 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 595 transitions. [2022-02-01 00:06:27,056 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 00:06:27,056 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 595 transitions. [2022-02-01 00:06:27,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-02-01 00:06:27,057 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:27,057 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 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] [2022-02-01 00:06:27,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-01 00:06:27,057 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:27,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:27,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1467292705, now seen corresponding path program 1 times [2022-02-01 00:06:27,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:27,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1423050048] [2022-02-01 00:06:27,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:27,079 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:27,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:27,084 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:27,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:27,169 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 00:06:27,169 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:27,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1423050048] [2022-02-01 00:06:27,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1423050048] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:27,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:27,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-01 00:06:27,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185498108] [2022-02-01 00:06:27,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:27,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-01 00:06:27,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:27,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-01 00:06:27,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:06:27,170 INFO L87 Difference]: Start difference. First operand 387 states and 595 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 00:06:29,739 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 00:06:31,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:32,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:32,990 INFO L93 Difference]: Finished difference Result 758 states and 1173 transitions. [2022-02-01 00:06:32,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-01 00:06:32,991 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 123 [2022-02-01 00:06:32,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:32,992 INFO L225 Difference]: With dead ends: 758 [2022-02-01 00:06:32,992 INFO L226 Difference]: Without dead ends: 397 [2022-02-01 00:06:32,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-01 00:06:32,993 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 142 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 43 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:32,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 355 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 519 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-02-01 00:06:32,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-02-01 00:06:33,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 396. [2022-02-01 00:06:33,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 391 states have (on average 1.5396419437340154) internal successors, (602), 391 states have internal predecessors, (602), 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 00:06:33,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 606 transitions. [2022-02-01 00:06:33,011 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 606 transitions. Word has length 123 [2022-02-01 00:06:33,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:33,012 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 606 transitions. [2022-02-01 00:06:33,012 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 00:06:33,012 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 606 transitions. [2022-02-01 00:06:33,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-01 00:06:33,013 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:33,013 INFO L514 BasicCegarLoop]: trace histogram [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 00:06:33,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-01 00:06:33,013 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:33,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:33,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1772871217, now seen corresponding path program 1 times [2022-02-01 00:06:33,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:33,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [818314775] [2022-02-01 00:06:33,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:33,038 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:33,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:33,044 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:33,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:33,136 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 00:06:33,136 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:33,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [818314775] [2022-02-01 00:06:33,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [818314775] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:33,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:33,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:06:33,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963291419] [2022-02-01 00:06:33,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:33,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:06:33,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:33,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:06:33,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:06:33,137 INFO L87 Difference]: Start difference. First operand 396 states and 606 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 00:06:36,104 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 00:06:38,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:40,008 WARN L534 Checker$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 00:06:40,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:40,443 INFO L93 Difference]: Finished difference Result 829 states and 1270 transitions. [2022-02-01 00:06:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:06:40,444 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 125 [2022-02-01 00:06:40,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:40,445 INFO L225 Difference]: With dead ends: 829 [2022-02-01 00:06:40,445 INFO L226 Difference]: Without dead ends: 459 [2022-02-01 00:06:40,446 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 00:06:40,446 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 128 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:40,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 360 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 460 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-02-01 00:06:40,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-02-01 00:06:40,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 396. [2022-02-01 00:06:40,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 391 states have (on average 1.5191815856777493) internal successors, (594), 391 states have internal predecessors, (594), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:40,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 598 transitions. [2022-02-01 00:06:40,466 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 598 transitions. Word has length 125 [2022-02-01 00:06:40,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:40,466 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 598 transitions. [2022-02-01 00:06:40,466 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 00:06:40,466 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 598 transitions. [2022-02-01 00:06:40,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-02-01 00:06:40,467 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:40,467 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:06:40,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-01 00:06:40,467 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:40,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:40,467 INFO L85 PathProgramCache]: Analyzing trace with hash 2110478748, now seen corresponding path program 1 times [2022-02-01 00:06:40,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:40,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762357896] [2022-02-01 00:06:40,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:40,487 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:40,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:40,492 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:40,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:40,625 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 00:06:40,626 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:40,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762357896] [2022-02-01 00:06:40,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [762357896] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:40,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:40,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:06:40,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168772518] [2022-02-01 00:06:40,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:40,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:06:40,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:40,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:06:40,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:06:40,627 INFO L87 Difference]: Start difference. First operand 396 states and 598 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:42,637 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 00:06:43,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:43,053 INFO L93 Difference]: Finished difference Result 845 states and 1284 transitions. [2022-02-01 00:06:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:06:43,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-02-01 00:06:43,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:43,054 INFO L225 Difference]: With dead ends: 845 [2022-02-01 00:06:43,054 INFO L226 Difference]: Without dead ends: 475 [2022-02-01 00:06:43,055 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 00:06:43,056 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 87 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:43,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 471 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:06:43,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-02-01 00:06:43,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 396. [2022-02-01 00:06:43,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 391 states have (on average 1.5191815856777493) internal successors, (594), 391 states have internal predecessors, (594), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:43,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 598 transitions. [2022-02-01 00:06:43,075 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 598 transitions. Word has length 130 [2022-02-01 00:06:43,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:43,075 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 598 transitions. [2022-02-01 00:06:43,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:43,075 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 598 transitions. [2022-02-01 00:06:43,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-02-01 00:06:43,076 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:43,076 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] [2022-02-01 00:06:43,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-01 00:06:43,076 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:43,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:43,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1332052626, now seen corresponding path program 1 times [2022-02-01 00:06:43,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:43,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963805938] [2022-02-01 00:06:43,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:43,099 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:43,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:43,105 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:43,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:43,183 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 00:06:43,183 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:43,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963805938] [2022-02-01 00:06:43,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1963805938] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:43,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:43,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:06:43,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813559477] [2022-02-01 00:06:43,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:43,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:06:43,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:43,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:06:43,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:06:43,185 INFO L87 Difference]: Start difference. First operand 396 states and 598 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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 00:06:44,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:46,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:48,451 WARN L534 Checker$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 00:06:50,475 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 00:06:50,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:50,916 INFO L93 Difference]: Finished difference Result 869 states and 1317 transitions. [2022-02-01 00:06:50,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:06:50,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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 130 [2022-02-01 00:06:50,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:50,918 INFO L225 Difference]: With dead ends: 869 [2022-02-01 00:06:50,918 INFO L226 Difference]: Without dead ends: 499 [2022-02-01 00:06:50,919 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 00:06:50,919 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 97 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 52 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:50,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 361 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 460 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-02-01 00:06:50,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2022-02-01 00:06:50,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 439. [2022-02-01 00:06:50,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 434 states have (on average 1.5253456221198156) internal successors, (662), 434 states have internal predecessors, (662), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:50,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 666 transitions. [2022-02-01 00:06:50,943 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 666 transitions. Word has length 130 [2022-02-01 00:06:50,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:50,944 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 666 transitions. [2022-02-01 00:06:50,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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 00:06:50,944 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 666 transitions. [2022-02-01 00:06:50,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-02-01 00:06:50,944 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:50,945 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:06:50,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-01 00:06:50,945 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:50,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:50,945 INFO L85 PathProgramCache]: Analyzing trace with hash -617730598, now seen corresponding path program 1 times [2022-02-01 00:06:50,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:50,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36474817] [2022-02-01 00:06:50,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:50,967 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:50,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:50,974 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:51,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:51,057 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 00:06:51,057 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:51,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36474817] [2022-02-01 00:06:51,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [36474817] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:51,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:51,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:06:51,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182396896] [2022-02-01 00:06:51,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:51,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:06:51,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:51,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:06:51,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:06:51,058 INFO L87 Difference]: Start difference. First operand 439 states and 666 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:53,065 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 00:06:53,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:53,512 INFO L93 Difference]: Finished difference Result 915 states and 1390 transitions. [2022-02-01 00:06:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:06:53,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-02-01 00:06:53,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:53,532 INFO L225 Difference]: With dead ends: 915 [2022-02-01 00:06:53,532 INFO L226 Difference]: Without dead ends: 502 [2022-02-01 00:06:53,537 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 00:06:53,538 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 124 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:53,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 348 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:06:53,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2022-02-01 00:06:53,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 421. [2022-02-01 00:06:53,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.5216346153846154) internal successors, (633), 416 states have internal predecessors, (633), 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 00:06:53,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 637 transitions. [2022-02-01 00:06:53,585 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 637 transitions. Word has length 130 [2022-02-01 00:06:53,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:53,586 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 637 transitions. [2022-02-01 00:06:53,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:53,586 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 637 transitions. [2022-02-01 00:06:53,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-01 00:06:53,587 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:53,588 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] [2022-02-01 00:06:53,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-01 00:06:53,588 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:53,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:53,588 INFO L85 PathProgramCache]: Analyzing trace with hash -650824134, now seen corresponding path program 1 times [2022-02-01 00:06:53,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:53,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785653138] [2022-02-01 00:06:53,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:53,628 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:53,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:53,634 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:53,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:53,727 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 00:06:53,727 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:53,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785653138] [2022-02-01 00:06:53,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [785653138] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:53,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:53,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:06:53,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442982338] [2022-02-01 00:06:53,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:53,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:06:53,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:53,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:06:53,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:06:53,729 INFO L87 Difference]: Start difference. First operand 421 states and 637 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:55,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:57,101 WARN L534 Checker$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 00:06:59,437 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 00:06:59,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:59,882 INFO L93 Difference]: Finished difference Result 889 states and 1351 transitions. [2022-02-01 00:06:59,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:06:59,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-01 00:06:59,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:59,884 INFO L225 Difference]: With dead ends: 889 [2022-02-01 00:06:59,884 INFO L226 Difference]: Without dead ends: 494 [2022-02-01 00:06:59,885 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 00:06:59,885 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 52 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:59,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 479 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 475 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-02-01 00:06:59,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-02-01 00:06:59,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 464. [2022-02-01 00:06:59,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 459 states have (on average 1.5206971677559913) internal successors, (698), 459 states have internal predecessors, (698), 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 00:06:59,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 702 transitions. [2022-02-01 00:06:59,914 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 702 transitions. Word has length 131 [2022-02-01 00:06:59,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:59,914 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 702 transitions. [2022-02-01 00:06:59,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:59,915 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 702 transitions. [2022-02-01 00:06:59,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-01 00:06:59,916 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:59,916 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] [2022-02-01 00:06:59,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-01 00:06:59,916 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:59,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:59,916 INFO L85 PathProgramCache]: Analyzing trace with hash 674032060, now seen corresponding path program 1 times [2022-02-01 00:06:59,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:59,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247578937] [2022-02-01 00:06:59,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:59,940 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:59,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:59,946 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:00,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:07:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:00,028 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 00:07:00,028 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:07:00,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247578937] [2022-02-01 00:07:00,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [247578937] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:07:00,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:07:00,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:07:00,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924502859] [2022-02-01 00:07:00,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:07:00,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:07:00,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:07:00,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:07:00,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:07:00,029 INFO L87 Difference]: Start difference. First operand 464 states and 702 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:02,036 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 00:07:02,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:07:02,504 INFO L93 Difference]: Finished difference Result 965 states and 1462 transitions. [2022-02-01 00:07:02,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:07:02,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-01 00:07:02,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:07:02,507 INFO L225 Difference]: With dead ends: 965 [2022-02-01 00:07:02,507 INFO L226 Difference]: Without dead ends: 525 [2022-02-01 00:07:02,507 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 00:07:02,508 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 97 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:07:02,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 364 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:07:02,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-02-01 00:07:02,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 466. [2022-02-01 00:07:02,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 461 states have (on average 1.5206073752711498) internal successors, (701), 461 states have internal predecessors, (701), 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 00:07:02,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 705 transitions. [2022-02-01 00:07:02,585 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 705 transitions. Word has length 131 [2022-02-01 00:07:02,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:07:02,585 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 705 transitions. [2022-02-01 00:07:02,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:02,585 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 705 transitions. [2022-02-01 00:07:02,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-02-01 00:07:02,586 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:07:02,586 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] [2022-02-01 00:07:02,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-01 00:07:02,587 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:07:02,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:07:02,587 INFO L85 PathProgramCache]: Analyzing trace with hash -871971578, now seen corresponding path program 1 times [2022-02-01 00:07:02,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:07:02,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418096674] [2022-02-01 00:07:02,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:07:02,608 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:07:02,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:07:02,615 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:07:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:02,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:07:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:02,699 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 00:07:02,700 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:07:02,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418096674] [2022-02-01 00:07:02,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [418096674] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:07:02,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:07:02,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:07:02,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103316267] [2022-02-01 00:07:02,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:07:02,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:07:02,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:07:02,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:07:02,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:07:02,701 INFO L87 Difference]: Start difference. First operand 466 states and 705 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 00:07:04,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:06,337 WARN L534 Checker$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 00:07:08,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:10,388 WARN L534 Checker$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 00:07:10,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:07:10,856 INFO L93 Difference]: Finished difference Result 936 states and 1421 transitions. [2022-02-01 00:07:10,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:07:10,856 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 143 [2022-02-01 00:07:10,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:07:10,858 INFO L225 Difference]: With dead ends: 936 [2022-02-01 00:07:10,858 INFO L226 Difference]: Without dead ends: 496 [2022-02-01 00:07:10,859 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 00:07:10,859 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 62 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:07:10,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 485 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 475 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-02-01 00:07:10,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-02-01 00:07:10,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 466. [2022-02-01 00:07:10,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 461 states have (on average 1.5184381778741864) internal successors, (700), 461 states have internal predecessors, (700), 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 00:07:10,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 704 transitions. [2022-02-01 00:07:10,889 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 704 transitions. Word has length 143 [2022-02-01 00:07:10,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:07:10,890 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 704 transitions. [2022-02-01 00:07:10,890 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 00:07:10,890 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 704 transitions. [2022-02-01 00:07:10,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-02-01 00:07:10,891 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:07:10,891 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] [2022-02-01 00:07:10,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-01 00:07:10,891 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:07:10,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:07:10,891 INFO L85 PathProgramCache]: Analyzing trace with hash 479413640, now seen corresponding path program 1 times [2022-02-01 00:07:10,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:07:10,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490874318] [2022-02-01 00:07:10,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:07:10,921 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:07:10,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:07:10,928 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:07:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:11,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:07:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:11,044 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 00:07:11,044 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:07:11,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490874318] [2022-02-01 00:07:11,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [490874318] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:07:11,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:07:11,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:07:11,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198921144] [2022-02-01 00:07:11,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:07:11,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:07:11,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:07:11,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:07:11,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:07:11,046 INFO L87 Difference]: Start difference. First operand 466 states and 704 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 00:07:13,899 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 00:07:14,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:07:14,581 INFO L93 Difference]: Finished difference Result 1007 states and 1524 transitions. [2022-02-01 00:07:14,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:07:14,581 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 143 [2022-02-01 00:07:14,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:07:14,583 INFO L225 Difference]: With dead ends: 1007 [2022-02-01 00:07:14,583 INFO L226 Difference]: Without dead ends: 567 [2022-02-01 00:07:14,584 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 00:07:14,584 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 108 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:07:14,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 366 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-02-01 00:07:14,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-02-01 00:07:14,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 496. [2022-02-01 00:07:14,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 491 states have (on average 1.509164969450102) internal successors, (741), 491 states have internal predecessors, (741), 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 00:07:14,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 745 transitions. [2022-02-01 00:07:14,627 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 745 transitions. Word has length 143 [2022-02-01 00:07:14,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:07:14,627 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 745 transitions. [2022-02-01 00:07:14,627 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 00:07:14,627 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 745 transitions. [2022-02-01 00:07:14,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-02-01 00:07:14,663 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:07:14,663 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] [2022-02-01 00:07:14,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-01 00:07:14,663 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:07:14,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:07:14,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1420874337, now seen corresponding path program 1 times [2022-02-01 00:07:14,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:07:14,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42238012] [2022-02-01 00:07:14,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:07:14,687 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:07:14,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:07:14,694 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:07:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:14,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:07:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:14,782 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 00:07:14,783 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:07:14,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42238012] [2022-02-01 00:07:14,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [42238012] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:07:14,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:07:14,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:07:14,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933214484] [2022-02-01 00:07:14,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:07:14,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:07:14,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:07:14,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:07:14,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:07:14,784 INFO L87 Difference]: Start difference. First operand 496 states and 745 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:16,585 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 00:07:18,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:20,153 WARN L534 Checker$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 00:07:21,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:22,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:07:22,299 INFO L93 Difference]: Finished difference Result 994 states and 1499 transitions. [2022-02-01 00:07:22,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:07:22,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-02-01 00:07:22,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:07:22,302 INFO L225 Difference]: With dead ends: 994 [2022-02-01 00:07:22,302 INFO L226 Difference]: Without dead ends: 524 [2022-02-01 00:07:22,303 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 00:07:22,304 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 59 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:07:22,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 483 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-02-01 00:07:22,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-02-01 00:07:22,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 496. [2022-02-01 00:07:22,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 491 states have (on average 1.5071283095723014) internal successors, (740), 491 states have internal predecessors, (740), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:22,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 744 transitions. [2022-02-01 00:07:22,351 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 744 transitions. Word has length 144 [2022-02-01 00:07:22,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:07:22,351 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 744 transitions. [2022-02-01 00:07:22,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:22,351 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 744 transitions. [2022-02-01 00:07:22,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-02-01 00:07:22,352 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:07:22,352 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] [2022-02-01 00:07:22,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-01 00:07:22,352 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:07:22,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:07:22,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1817361757, now seen corresponding path program 1 times [2022-02-01 00:07:22,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:07:22,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412236068] [2022-02-01 00:07:22,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:07:22,381 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:07:22,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:07:22,390 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:07:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:22,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:07:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:22,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:07:22,483 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:07:22,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412236068] [2022-02-01 00:07:22,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1412236068] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:07:22,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:07:22,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:07:22,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710425012] [2022-02-01 00:07:22,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:07:22,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:07:22,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:07:22,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:07:22,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:07:22,484 INFO L87 Difference]: Start difference. First operand 496 states and 744 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:23,883 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 00:07:25,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:27,928 WARN L534 Checker$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 00:07:28,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:07:28,424 INFO L93 Difference]: Finished difference Result 1025 states and 1539 transitions. [2022-02-01 00:07:28,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:07:28,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-02-01 00:07:28,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:07:28,427 INFO L225 Difference]: With dead ends: 1025 [2022-02-01 00:07:28,427 INFO L226 Difference]: Without dead ends: 555 [2022-02-01 00:07:28,427 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 00:07:28,428 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 107 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-01 00:07:28,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 366 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 460 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-02-01 00:07:28,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-02-01 00:07:28,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 496. [2022-02-01 00:07:28,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 491 states have (on average 1.494908350305499) internal successors, (734), 491 states have internal predecessors, (734), 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 00:07:28,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 738 transitions. [2022-02-01 00:07:28,492 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 738 transitions. Word has length 144 [2022-02-01 00:07:28,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:07:28,493 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 738 transitions. [2022-02-01 00:07:28,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:28,493 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 738 transitions. [2022-02-01 00:07:28,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-01 00:07:28,494 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:07:28,494 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, 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 00:07:28,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-01 00:07:28,494 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:07:28,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:07:28,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1349774437, now seen corresponding path program 1 times [2022-02-01 00:07:28,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:07:28,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1908455930] [2022-02-01 00:07:28,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:07:28,525 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:07:28,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:07:28,532 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:07:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:28,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:07:28,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:28,615 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 00:07:28,615 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:07:28,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1908455930] [2022-02-01 00:07:28,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1908455930] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:07:28,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:07:28,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:07:28,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307598026] [2022-02-01 00:07:28,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:07:28,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:07:28,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:07:28,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:07:28,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:07:28,617 INFO L87 Difference]: Start difference. First operand 496 states and 738 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 00:07:29,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:31,954 WARN L534 Checker$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 00:07:33,978 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 00:07:35,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:07:35,326 INFO L93 Difference]: Finished difference Result 994 states and 1485 transitions. [2022-02-01 00:07:35,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:07:35,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-02-01 00:07:35,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:07:35,329 INFO L225 Difference]: With dead ends: 994 [2022-02-01 00:07:35,329 INFO L226 Difference]: Without dead ends: 524 [2022-02-01 00:07:35,329 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 00:07:35,330 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 61 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-01 00:07:35,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 509 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-02-01 00:07:35,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-02-01 00:07:35,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 496. [2022-02-01 00:07:35,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 491 states have (on average 1.4928716904276986) internal successors, (733), 491 states have internal predecessors, (733), 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 00:07:35,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 737 transitions. [2022-02-01 00:07:35,367 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 737 transitions. Word has length 146 [2022-02-01 00:07:35,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:07:35,368 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 737 transitions. [2022-02-01 00:07:35,368 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 00:07:35,368 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 737 transitions. [2022-02-01 00:07:35,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-01 00:07:35,369 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:07:35,369 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, 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 00:07:35,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-01 00:07:35,369 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:07:35,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:07:35,369 INFO L85 PathProgramCache]: Analyzing trace with hash -556628829, now seen corresponding path program 1 times [2022-02-01 00:07:35,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:07:35,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1998310191] [2022-02-01 00:07:35,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:07:35,395 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:07:35,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:07:35,401 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:07:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:35,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:07:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:35,481 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 00:07:35,481 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:07:35,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1998310191] [2022-02-01 00:07:35,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1998310191] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:07:35,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:07:35,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:07:35,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689345226] [2022-02-01 00:07:35,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:07:35,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:07:35,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:07:35,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:07:35,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:07:35,482 INFO L87 Difference]: Start difference. First operand 496 states and 737 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 00:07:37,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:38,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:40,958 WARN L534 Checker$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 00:07:42,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:07:42,012 INFO L93 Difference]: Finished difference Result 1001 states and 1494 transitions. [2022-02-01 00:07:42,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:07:42,012 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 146 [2022-02-01 00:07:42,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:07:42,014 INFO L225 Difference]: With dead ends: 1001 [2022-02-01 00:07:42,014 INFO L226 Difference]: Without dead ends: 531 [2022-02-01 00:07:42,014 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 00:07:42,015 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 25 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:07:42,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 565 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 418 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-02-01 00:07:42,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-02-01 00:07:42,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 520. [2022-02-01 00:07:42,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 515 states have (on average 1.4893203883495145) internal successors, (767), 515 states have internal predecessors, (767), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:42,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 771 transitions. [2022-02-01 00:07:42,099 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 771 transitions. Word has length 146 [2022-02-01 00:07:42,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:07:42,099 INFO L470 AbstractCegarLoop]: Abstraction has 520 states and 771 transitions. [2022-02-01 00:07:42,099 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 00:07:42,099 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 771 transitions. [2022-02-01 00:07:42,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-01 00:07:42,119 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:07:42,119 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, 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 00:07:42,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-01 00:07:42,119 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:07:42,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:07:42,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1928919604, now seen corresponding path program 1 times [2022-02-01 00:07:42,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:07:42,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294717554] [2022-02-01 00:07:42,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:07:42,156 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:07:42,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:07:42,162 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:07:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:42,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:07:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:42,251 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 00:07:42,252 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:07:42,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294717554] [2022-02-01 00:07:42,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [294717554] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:07:42,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:07:42,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:07:42,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540808408] [2022-02-01 00:07:42,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:07:42,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:07:42,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:07:42,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:07:42,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:07:42,253 INFO L87 Difference]: Start difference. First operand 520 states and 771 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 00:07:45,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:47,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:49,106 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 00:07:49,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:07:49,673 INFO L93 Difference]: Finished difference Result 1073 states and 1593 transitions. [2022-02-01 00:07:49,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:07:49,674 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 00:07:49,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:07:49,676 INFO L225 Difference]: With dead ends: 1073 [2022-02-01 00:07:49,676 INFO L226 Difference]: Without dead ends: 579 [2022-02-01 00:07:49,677 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 00:07:49,677 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 108 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:07:49,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 350 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 452 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-02-01 00:07:49,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-02-01 00:07:49,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 520. [2022-02-01 00:07:49,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 515 states have (on average 1.4737864077669902) internal successors, (759), 515 states have internal predecessors, (759), 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 00:07:49,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 763 transitions. [2022-02-01 00:07:49,736 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 763 transitions. Word has length 147 [2022-02-01 00:07:49,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:07:49,736 INFO L470 AbstractCegarLoop]: Abstraction has 520 states and 763 transitions. [2022-02-01 00:07:49,736 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 00:07:49,736 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 763 transitions. [2022-02-01 00:07:49,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-01 00:07:49,737 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:07:49,738 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, 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] [2022-02-01 00:07:49,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-01 00:07:49,738 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:07:49,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:07:49,738 INFO L85 PathProgramCache]: Analyzing trace with hash -264065709, now seen corresponding path program 1 times [2022-02-01 00:07:49,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:07:49,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363067722] [2022-02-01 00:07:49,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:07:49,770 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:07:49,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:07:49,779 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:07:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:49,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:07:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:49,879 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 00:07:49,880 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:07:49,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363067722] [2022-02-01 00:07:49,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1363067722] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:07:49,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:07:49,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:07:49,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609514006] [2022-02-01 00:07:49,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:07:49,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:07:49,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:07:49,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:07:49,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:07:49,881 INFO L87 Difference]: Start difference. First operand 520 states and 763 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 00:07:51,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:53,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:55,234 WARN L534 Checker$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 00:07:57,265 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 00:07:57,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:07:57,884 INFO L93 Difference]: Finished difference Result 1115 states and 1639 transitions. [2022-02-01 00:07:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:07:57,885 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 153 [2022-02-01 00:07:57,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:07:57,887 INFO L225 Difference]: With dead ends: 1115 [2022-02-01 00:07:57,887 INFO L226 Difference]: Without dead ends: 621 [2022-02-01 00:07:57,888 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 00:07:57,888 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 101 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-01 00:07:57,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 350 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 453 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-02-01 00:07:57,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2022-02-01 00:07:57,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 555. [2022-02-01 00:07:57,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4672727272727273) internal successors, (807), 550 states have internal predecessors, (807), 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 00:07:57,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 811 transitions. [2022-02-01 00:07:57,950 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 811 transitions. Word has length 153 [2022-02-01 00:07:57,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:07:57,950 INFO L470 AbstractCegarLoop]: Abstraction has 555 states and 811 transitions. [2022-02-01 00:07:57,951 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 00:07:57,951 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 811 transitions. [2022-02-01 00:07:57,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-01 00:07:57,952 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:07:57,952 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, 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] [2022-02-01 00:07:57,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-01 00:07:57,952 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:07:57,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:07:57,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1929997945, now seen corresponding path program 1 times [2022-02-01 00:07:57,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:07:57,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107435738] [2022-02-01 00:07:57,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:07:57,983 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:07:57,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:07:57,992 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:07:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:58,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:07:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:58,092 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 00:07:58,092 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:07:58,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107435738] [2022-02-01 00:07:58,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [107435738] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:07:58,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:07:58,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:07:58,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722934931] [2022-02-01 00:07:58,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:07:58,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:07:58,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:07:58,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:07:58,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:07:58,093 INFO L87 Difference]: Start difference. First operand 555 states and 811 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:00,103 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 00:08:00,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:00,620 INFO L93 Difference]: Finished difference Result 1102 states and 1616 transitions. [2022-02-01 00:08:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:08:00,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-02-01 00:08:00,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:00,622 INFO L225 Difference]: With dead ends: 1102 [2022-02-01 00:08:00,622 INFO L226 Difference]: Without dead ends: 573 [2022-02-01 00:08:00,624 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 00:08:00,624 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 40 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:00,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 503 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:08:00,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-02-01 00:08:00,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 555. [2022-02-01 00:08:00,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4654545454545456) internal successors, (806), 550 states have internal predecessors, (806), 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 00:08:00,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 810 transitions. [2022-02-01 00:08:00,695 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 810 transitions. Word has length 154 [2022-02-01 00:08:00,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:00,696 INFO L470 AbstractCegarLoop]: Abstraction has 555 states and 810 transitions. [2022-02-01 00:08:00,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:00,696 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 810 transitions. [2022-02-01 00:08:00,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-01 00:08:00,697 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:00,697 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, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:08:00,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-01 00:08:00,697 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:00,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:00,698 INFO L85 PathProgramCache]: Analyzing trace with hash -121806132, now seen corresponding path program 1 times [2022-02-01 00:08:00,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:00,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672660306] [2022-02-01 00:08:00,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:00,747 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:00,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:00,756 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:00,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:00,927 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 00:08:00,927 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:00,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672660306] [2022-02-01 00:08:00,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1672660306] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:00,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:00,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:08:00,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501209050] [2022-02-01 00:08:00,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:00,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:08:00,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:00,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:08:00,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:08:00,930 INFO L87 Difference]: Start difference. First operand 555 states and 810 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 00:08:02,938 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 00:08:03,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:03,370 INFO L93 Difference]: Finished difference Result 1102 states and 1614 transitions. [2022-02-01 00:08:03,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:08:03,371 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 168 [2022-02-01 00:08:03,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:03,373 INFO L225 Difference]: With dead ends: 1102 [2022-02-01 00:08:03,373 INFO L226 Difference]: Without dead ends: 573 [2022-02-01 00:08:03,373 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 00:08:03,374 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 51 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:03,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 513 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 455 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:08:03,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-02-01 00:08:03,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 555. [2022-02-01 00:08:03,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4636363636363636) internal successors, (805), 550 states have internal predecessors, (805), 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 00:08:03,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 809 transitions. [2022-02-01 00:08:03,421 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 809 transitions. Word has length 168 [2022-02-01 00:08:03,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:03,422 INFO L470 AbstractCegarLoop]: Abstraction has 555 states and 809 transitions. [2022-02-01 00:08:03,422 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 00:08:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 809 transitions. [2022-02-01 00:08:03,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-01 00:08:03,423 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:03,423 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, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:08:03,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-01 00:08:03,423 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:03,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:03,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1214441334, now seen corresponding path program 1 times [2022-02-01 00:08:03,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:03,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1967116398] [2022-02-01 00:08:03,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:03,454 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:03,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:03,464 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:03,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:03,577 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 00:08:03,577 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:03,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1967116398] [2022-02-01 00:08:03,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1967116398] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:03,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:03,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:08:03,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964457397] [2022-02-01 00:08:03,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:03,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:08:03,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:03,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:08:03,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:08:03,579 INFO L87 Difference]: Start difference. First operand 555 states and 809 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 00:08:05,590 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 00:08:06,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:06,080 INFO L93 Difference]: Finished difference Result 1176 states and 1716 transitions. [2022-02-01 00:08:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:08:06,080 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 168 [2022-02-01 00:08:06,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:06,082 INFO L225 Difference]: With dead ends: 1176 [2022-02-01 00:08:06,083 INFO L226 Difference]: Without dead ends: 647 [2022-02-01 00:08:06,084 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 00:08:06,084 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 99 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:06,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 370 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:08:06,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-02-01 00:08:06,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 583. [2022-02-01 00:08:06,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 578 states have (on average 1.453287197231834) internal successors, (840), 578 states have internal predecessors, (840), 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 00:08:06,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 844 transitions. [2022-02-01 00:08:06,203 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 844 transitions. Word has length 168 [2022-02-01 00:08:06,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:06,203 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 844 transitions. [2022-02-01 00:08:06,203 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 00:08:06,203 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 844 transitions. [2022-02-01 00:08:06,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-01 00:08:06,204 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:06,205 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:08:06,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-01 00:08:06,206 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:06,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:06,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1249980488, now seen corresponding path program 1 times [2022-02-01 00:08:06,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:06,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692772373] [2022-02-01 00:08:06,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:06,272 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:06,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:06,282 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:06,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:06,439 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 00:08:06,440 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:06,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692772373] [2022-02-01 00:08:06,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [692772373] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:06,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:06,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:08:06,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259187044] [2022-02-01 00:08:06,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:06,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:08:06,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:06,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:08:06,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:08:06,441 INFO L87 Difference]: Start difference. First operand 583 states and 844 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:08,455 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 00:08:09,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:09,088 INFO L93 Difference]: Finished difference Result 1691 states and 2466 transitions. [2022-02-01 00:08:09,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:08:09,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-02-01 00:08:09,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:09,092 INFO L225 Difference]: With dead ends: 1691 [2022-02-01 00:08:09,092 INFO L226 Difference]: Without dead ends: 1134 [2022-02-01 00:08:09,093 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 00:08:09,094 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:09,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 564 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:08:09,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2022-02-01 00:08:09,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1134. [2022-02-01 00:08:09,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 1129 states have (on average 1.453498671390611) internal successors, (1641), 1129 states have internal predecessors, (1641), 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 00:08:09,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1645 transitions. [2022-02-01 00:08:09,272 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1645 transitions. Word has length 171 [2022-02-01 00:08:09,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:09,272 INFO L470 AbstractCegarLoop]: Abstraction has 1134 states and 1645 transitions. [2022-02-01 00:08:09,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:09,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1645 transitions. [2022-02-01 00:08:09,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-02-01 00:08:09,273 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:09,273 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, 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] [2022-02-01 00:08:09,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-01 00:08:09,274 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:09,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:09,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1390400330, now seen corresponding path program 1 times [2022-02-01 00:08:09,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:09,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286940536] [2022-02-01 00:08:09,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:09,359 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:09,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:09,367 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:09,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:09,534 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 00:08:09,535 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:09,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286940536] [2022-02-01 00:08:09,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [286940536] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:09,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:09,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:08:09,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019964532] [2022-02-01 00:08:09,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:09,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:08:09,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:09,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:08:09,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:08:09,536 INFO L87 Difference]: Start difference. First operand 1134 states and 1645 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 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 00:08:11,543 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 00:08:12,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:12,278 INFO L93 Difference]: Finished difference Result 2758 states and 4015 transitions. [2022-02-01 00:08:12,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:08:12,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 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 172 [2022-02-01 00:08:12,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:12,285 INFO L225 Difference]: With dead ends: 2758 [2022-02-01 00:08:12,285 INFO L226 Difference]: Without dead ends: 1650 [2022-02-01 00:08:12,287 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 00:08:12,288 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 132 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:12,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 562 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:08:12,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2022-02-01 00:08:12,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1648. [2022-02-01 00:08:12,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1643 states have (on average 1.454047474132684) internal successors, (2389), 1643 states have internal predecessors, (2389), 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 00:08:12,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2393 transitions. [2022-02-01 00:08:12,550 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2393 transitions. Word has length 172 [2022-02-01 00:08:12,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:12,550 INFO L470 AbstractCegarLoop]: Abstraction has 1648 states and 2393 transitions. [2022-02-01 00:08:12,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 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 00:08:12,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2393 transitions. [2022-02-01 00:08:12,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-01 00:08:12,552 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:12,553 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:08:12,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-01 00:08:12,553 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:12,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:12,554 INFO L85 PathProgramCache]: Analyzing trace with hash 88169537, now seen corresponding path program 1 times [2022-02-01 00:08:12,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:12,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [325160209] [2022-02-01 00:08:12,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:12,608 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:12,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:12,618 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:12,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:12,714 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 00:08:12,714 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:12,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [325160209] [2022-02-01 00:08:12,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [325160209] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:12,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:12,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:08:12,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895832918] [2022-02-01 00:08:12,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:12,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:08:12,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:12,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:08:12,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:08:12,718 INFO L87 Difference]: Start difference. First operand 1648 states and 2393 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 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 00:08:14,731 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 00:08:15,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:15,382 INFO L93 Difference]: Finished difference Result 3777 states and 5499 transitions. [2022-02-01 00:08:15,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:08:15,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 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 173 [2022-02-01 00:08:15,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:15,390 INFO L225 Difference]: With dead ends: 3777 [2022-02-01 00:08:15,390 INFO L226 Difference]: Without dead ends: 2155 [2022-02-01 00:08:15,394 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 00:08:15,395 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:15,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 442 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 274 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-01 00:08:15,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2022-02-01 00:08:15,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2151. [2022-02-01 00:08:15,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2151 states, 2146 states have (on average 1.4552656104380242) internal successors, (3123), 2146 states have internal predecessors, (3123), 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 00:08:15,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 3127 transitions. [2022-02-01 00:08:15,672 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 3127 transitions. Word has length 173 [2022-02-01 00:08:15,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:15,699 INFO L470 AbstractCegarLoop]: Abstraction has 2151 states and 3127 transitions. [2022-02-01 00:08:15,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 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 00:08:15,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 3127 transitions. [2022-02-01 00:08:15,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-01 00:08:15,702 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:15,702 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:08:15,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-01 00:08:15,703 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:15,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:15,703 INFO L85 PathProgramCache]: Analyzing trace with hash -346336061, now seen corresponding path program 1 times [2022-02-01 00:08:15,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:15,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654415902] [2022-02-01 00:08:15,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:15,753 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:15,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:15,768 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:15,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:15,860 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 00:08:15,860 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:15,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654415902] [2022-02-01 00:08:15,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1654415902] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:15,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:15,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:08:15,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569197688] [2022-02-01 00:08:15,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:15,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:08:15,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:15,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:08:15,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:08:15,861 INFO L87 Difference]: Start difference. First operand 2151 states and 3127 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:16,870 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 00:08:18,888 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 00:08:20,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:20,291 INFO L93 Difference]: Finished difference Result 4303 states and 6261 transitions. [2022-02-01 00:08:20,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:08:20,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-02-01 00:08:20,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:20,299 INFO L225 Difference]: With dead ends: 4303 [2022-02-01 00:08:20,299 INFO L226 Difference]: Without dead ends: 2178 [2022-02-01 00:08:20,304 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 00:08:20,304 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:20,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 411 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 237 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-02-01 00:08:20,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2178 states. [2022-02-01 00:08:20,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2178 to 2178. [2022-02-01 00:08:20,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2178 states, 2173 states have (on average 1.4532903819604235) internal successors, (3158), 2173 states have internal predecessors, (3158), 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 00:08:20,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2178 states to 2178 states and 3162 transitions. [2022-02-01 00:08:20,611 INFO L78 Accepts]: Start accepts. Automaton has 2178 states and 3162 transitions. Word has length 173 [2022-02-01 00:08:20,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:20,611 INFO L470 AbstractCegarLoop]: Abstraction has 2178 states and 3162 transitions. [2022-02-01 00:08:20,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:20,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2178 states and 3162 transitions. [2022-02-01 00:08:20,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-01 00:08:20,615 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:20,615 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:08:20,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-01 00:08:20,615 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:20,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:20,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1584789573, now seen corresponding path program 1 times [2022-02-01 00:08:20,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:20,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669685436] [2022-02-01 00:08:20,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:20,666 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:20,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:20,675 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:20,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:20,753 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 00:08:20,753 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:20,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669685436] [2022-02-01 00:08:20,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1669685436] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:20,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:20,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:08:20,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285836560] [2022-02-01 00:08:20,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:20,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:08:20,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:20,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:08:20,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:08:20,754 INFO L87 Difference]: Start difference. First operand 2178 states and 3162 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:22,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:08:24,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:08:25,371 WARN L534 Checker$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 00:08:25,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:25,833 INFO L93 Difference]: Finished difference Result 4332 states and 6297 transitions. [2022-02-01 00:08:25,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:08:25,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-02-01 00:08:25,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:25,854 INFO L225 Difference]: With dead ends: 4332 [2022-02-01 00:08:25,854 INFO L226 Difference]: Without dead ends: 2180 [2022-02-01 00:08:25,859 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 00:08:25,861 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:25,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 390 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 223 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-02-01 00:08:25,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2022-02-01 00:08:26,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2022-02-01 00:08:26,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2175 states have (on average 1.452873563218391) internal successors, (3160), 2175 states have internal predecessors, (3160), 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 00:08:26,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3164 transitions. [2022-02-01 00:08:26,103 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3164 transitions. Word has length 173 [2022-02-01 00:08:26,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:26,103 INFO L470 AbstractCegarLoop]: Abstraction has 2180 states and 3164 transitions. [2022-02-01 00:08:26,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:26,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3164 transitions. [2022-02-01 00:08:26,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-01 00:08:26,106 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:26,106 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-02-01 00:08:26,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-01 00:08:26,106 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:26,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:26,106 INFO L85 PathProgramCache]: Analyzing trace with hash -149864137, now seen corresponding path program 1 times [2022-02-01 00:08:26,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:26,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324382617] [2022-02-01 00:08:26,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:26,146 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:26,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:26,156 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:26,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:26,258 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 00:08:26,258 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:26,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324382617] [2022-02-01 00:08:26,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1324382617] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:26,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:26,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:08:26,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592335629] [2022-02-01 00:08:26,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:26,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:08:26,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:26,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:08:26,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:08:26,260 INFO L87 Difference]: Start difference. First operand 2180 states and 3164 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 00:08:28,267 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 00:08:28,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:28,910 INFO L93 Difference]: Finished difference Result 4405 states and 6387 transitions. [2022-02-01 00:08:28,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:08:28,910 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 174 [2022-02-01 00:08:28,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:28,914 INFO L225 Difference]: With dead ends: 4405 [2022-02-01 00:08:28,914 INFO L226 Difference]: Without dead ends: 2253 [2022-02-01 00:08:28,917 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 00:08:28,917 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 48 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:28,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 511 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:08:28,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2022-02-01 00:08:29,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 2180. [2022-02-01 00:08:29,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2175 states have (on average 1.4510344827586208) internal successors, (3156), 2175 states have internal predecessors, (3156), 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 00:08:29,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3160 transitions. [2022-02-01 00:08:29,119 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3160 transitions. Word has length 174 [2022-02-01 00:08:29,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:29,119 INFO L470 AbstractCegarLoop]: Abstraction has 2180 states and 3160 transitions. [2022-02-01 00:08:29,119 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 00:08:29,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3160 transitions. [2022-02-01 00:08:29,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-02-01 00:08:29,121 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:29,121 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2022-02-01 00:08:29,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-01 00:08:29,121 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:29,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:29,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1698502978, now seen corresponding path program 1 times [2022-02-01 00:08:29,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:29,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122673058] [2022-02-01 00:08:29,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:29,153 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:29,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:29,160 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:29,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:29,273 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 00:08:29,273 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:29,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122673058] [2022-02-01 00:08:29,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2122673058] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:29,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:29,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:08:29,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681660328] [2022-02-01 00:08:29,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:29,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:08:29,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:29,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:08:29,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:08:29,274 INFO L87 Difference]: Start difference. First operand 2180 states and 3160 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 00:08:31,553 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 00:08:33,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:08:34,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:34,046 INFO L93 Difference]: Finished difference Result 4397 states and 6367 transitions. [2022-02-01 00:08:34,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:08:34,047 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 175 [2022-02-01 00:08:34,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:34,051 INFO L225 Difference]: With dead ends: 4397 [2022-02-01 00:08:34,051 INFO L226 Difference]: Without dead ends: 2245 [2022-02-01 00:08:34,054 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 00:08:34,054 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 45 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:34,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 517 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-02-01 00:08:34,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2245 states. [2022-02-01 00:08:34,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2245 to 2180. [2022-02-01 00:08:34,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2175 states have (on average 1.4491954022988505) internal successors, (3152), 2175 states have internal predecessors, (3152), 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 00:08:34,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3156 transitions. [2022-02-01 00:08:34,302 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3156 transitions. Word has length 175 [2022-02-01 00:08:34,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:34,302 INFO L470 AbstractCegarLoop]: Abstraction has 2180 states and 3156 transitions. [2022-02-01 00:08:34,302 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 00:08:34,302 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3156 transitions. [2022-02-01 00:08:34,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-02-01 00:08:34,304 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:34,304 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:08:34,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-01 00:08:34,304 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:34,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:34,305 INFO L85 PathProgramCache]: Analyzing trace with hash -333985620, now seen corresponding path program 1 times [2022-02-01 00:08:34,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:34,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127910077] [2022-02-01 00:08:34,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:34,332 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:34,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:34,341 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:34,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:34,422 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 00:08:34,422 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:34,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127910077] [2022-02-01 00:08:34,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1127910077] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:34,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:34,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:08:34,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221102504] [2022-02-01 00:08:34,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:34,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:08:34,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:34,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:08:34,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:08:34,423 INFO L87 Difference]: Start difference. First operand 2180 states and 3156 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 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 00:08:37,022 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 00:08:39,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:08:39,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:39,840 INFO L93 Difference]: Finished difference Result 4549 states and 6570 transitions. [2022-02-01 00:08:39,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:08:39,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-02-01 00:08:39,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:39,844 INFO L225 Difference]: With dead ends: 4549 [2022-02-01 00:08:39,844 INFO L226 Difference]: Without dead ends: 2397 [2022-02-01 00:08:39,847 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 00:08:39,848 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 100 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:39,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 354 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 455 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-01 00:08:39,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2022-02-01 00:08:40,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 2180. [2022-02-01 00:08:40,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2175 states have (on average 1.4422988505747127) internal successors, (3137), 2175 states have internal predecessors, (3137), 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 00:08:40,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3141 transitions. [2022-02-01 00:08:40,080 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3141 transitions. Word has length 176 [2022-02-01 00:08:40,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:40,081 INFO L470 AbstractCegarLoop]: Abstraction has 2180 states and 3141 transitions. [2022-02-01 00:08:40,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 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 00:08:40,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3141 transitions. [2022-02-01 00:08:40,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-02-01 00:08:40,082 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:40,082 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:08:40,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-01 00:08:40,083 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:40,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:40,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1388271131, now seen corresponding path program 1 times [2022-02-01 00:08:40,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:40,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190564233] [2022-02-01 00:08:40,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:40,113 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:40,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:40,122 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:40,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:40,218 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 00:08:40,219 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:40,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190564233] [2022-02-01 00:08:40,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1190564233] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:40,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:40,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:08:40,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107076834] [2022-02-01 00:08:40,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:40,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:08:40,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:40,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:08:40,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:08:40,220 INFO L87 Difference]: Start difference. First operand 2180 states and 3141 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:41,965 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 00:08:43,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:08:46,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:08:47,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:47,336 INFO L93 Difference]: Finished difference Result 4397 states and 6329 transitions. [2022-02-01 00:08:47,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:08:47,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 185 [2022-02-01 00:08:47,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:47,341 INFO L225 Difference]: With dead ends: 4397 [2022-02-01 00:08:47,342 INFO L226 Difference]: Without dead ends: 2245 [2022-02-01 00:08:47,348 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 00:08:47,350 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 38 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:47,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 517 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 450 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-02-01 00:08:47,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2245 states. [2022-02-01 00:08:47,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2245 to 2180. [2022-02-01 00:08:47,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2175 states have (on average 1.4404597701149426) internal successors, (3133), 2175 states have internal predecessors, (3133), 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 00:08:47,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3137 transitions. [2022-02-01 00:08:47,570 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3137 transitions. Word has length 185 [2022-02-01 00:08:47,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:47,571 INFO L470 AbstractCegarLoop]: Abstraction has 2180 states and 3137 transitions. [2022-02-01 00:08:47,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:47,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3137 transitions. [2022-02-01 00:08:47,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-02-01 00:08:47,573 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:47,573 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:08:47,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-01 00:08:47,573 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:47,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:47,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1296091409, now seen corresponding path program 1 times [2022-02-01 00:08:47,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:47,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440640832] [2022-02-01 00:08:47,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:47,642 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:47,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:47,650 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:47,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:47,759 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 00:08:47,760 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:47,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440640832] [2022-02-01 00:08:47,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [440640832] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:47,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:47,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:08:47,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136383578] [2022-02-01 00:08:47,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:47,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:08:47,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:47,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:08:47,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:08:47,761 INFO L87 Difference]: Start difference. First operand 2180 states and 3137 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 00:08:49,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:08:51,543 WARN L534 Checker$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 00:08:53,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:08:54,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:54,978 INFO L93 Difference]: Finished difference Result 4381 states and 6301 transitions. [2022-02-01 00:08:54,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:08:54,979 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 186 [2022-02-01 00:08:54,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:54,983 INFO L225 Difference]: With dead ends: 4381 [2022-02-01 00:08:54,983 INFO L226 Difference]: Without dead ends: 2229 [2022-02-01 00:08:54,986 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 00:08:54,987 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 33 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:54,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 521 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 446 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-02-01 00:08:54,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states. [2022-02-01 00:08:55,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 2180. [2022-02-01 00:08:55,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2175 states have (on average 1.4386206896551723) internal successors, (3129), 2175 states have internal predecessors, (3129), 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 00:08:55,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3133 transitions. [2022-02-01 00:08:55,239 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3133 transitions. Word has length 186 [2022-02-01 00:08:55,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:55,240 INFO L470 AbstractCegarLoop]: Abstraction has 2180 states and 3133 transitions. [2022-02-01 00:08:55,240 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 00:08:55,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3133 transitions. [2022-02-01 00:08:55,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-01 00:08:55,242 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:55,242 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] [2022-02-01 00:08:55,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-01 00:08:55,242 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:55,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:55,242 INFO L85 PathProgramCache]: Analyzing trace with hash 713847772, now seen corresponding path program 1 times [2022-02-01 00:08:55,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:55,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760396119] [2022-02-01 00:08:55,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:55,288 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:55,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:55,297 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:55,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:55,731 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 00:08:55,731 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:55,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760396119] [2022-02-01 00:08:55,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [760396119] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:55,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:55,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-01 00:08:55,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313196536] [2022-02-01 00:08:55,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:55,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-01 00:08:55,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:55,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-01 00:08:55,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-01 00:08:55,732 INFO L87 Difference]: Start difference. First operand 2180 states and 3133 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:57,369 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 [] [2022-02-01 00:08:58,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:00,618 WARN L534 Checker$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 00:09:02,961 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 00:09:04,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:09:04,275 INFO L93 Difference]: Finished difference Result 4353 states and 6258 transitions. [2022-02-01 00:09:04,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-01 00:09:04,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-02-01 00:09:04,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:09:04,284 INFO L225 Difference]: With dead ends: 4353 [2022-02-01 00:09:04,284 INFO L226 Difference]: Without dead ends: 2180 [2022-02-01 00:09:04,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-01 00:09:04,288 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 7 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:09:04,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 812 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 436 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-02-01 00:09:04,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2022-02-01 00:09:04,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2022-02-01 00:09:04,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2175 states have (on average 1.4381609195402298) internal successors, (3128), 2175 states have internal predecessors, (3128), 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 00:09:04,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3132 transitions. [2022-02-01 00:09:04,550 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3132 transitions. Word has length 196 [2022-02-01 00:09:04,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:09:04,550 INFO L470 AbstractCegarLoop]: Abstraction has 2180 states and 3132 transitions. [2022-02-01 00:09:04,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:04,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3132 transitions. [2022-02-01 00:09:04,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-01 00:09:04,552 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:09:04,553 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] [2022-02-01 00:09:04,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-01 00:09:04,554 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:09:04,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:09:04,554 INFO L85 PathProgramCache]: Analyzing trace with hash 240612122, now seen corresponding path program 1 times [2022-02-01 00:09:04,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:09:04,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667997574] [2022-02-01 00:09:04,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:09:04,620 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:09:04,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:09:04,630 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:09:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:05,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:09:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:05,766 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 00:09:05,766 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:09:05,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667997574] [2022-02-01 00:09:05,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1667997574] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:09:05,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:09:05,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-01 00:09:05,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592216296] [2022-02-01 00:09:05,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:09:05,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-01 00:09:05,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:09:05,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-01 00:09:05,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-02-01 00:09:05,768 INFO L87 Difference]: Start difference. First operand 2180 states and 3132 transitions. Second operand has 13 states, 12 states have (on average 10.666666666666666) internal successors, (128), 11 states have internal predecessors, (128), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:07,018 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 00:09:08,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:10,887 WARN L534 Checker$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 00:09:12,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:15,205 WARN L534 Checker$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 00:09:17,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:18,898 WARN L534 Checker$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 00:09:21,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:09:21,375 INFO L93 Difference]: Finished difference Result 3210 states and 4605 transitions. [2022-02-01 00:09:21,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-01 00:09:21,376 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.666666666666666) internal successors, (128), 11 states have internal predecessors, (128), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-02-01 00:09:21,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:09:21,381 INFO L225 Difference]: With dead ends: 3210 [2022-02-01 00:09:21,381 INFO L226 Difference]: Without dead ends: 3206 [2022-02-01 00:09:21,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-02-01 00:09:21,382 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 436 mSDsluCounter, 1658 mSDsCounter, 0 mSdLazyCounter, 2396 mSolverCounterSat, 106 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 2505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 2396 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-02-01 00:09:21,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [436 Valid, 1891 Invalid, 2505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 2396 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2022-02-01 00:09:21,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2022-02-01 00:09:21,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 2716. [2022-02-01 00:09:21,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2711 states have (on average 1.450387310955367) internal successors, (3932), 2711 states have internal predecessors, (3932), 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 00:09:21,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 3936 transitions. [2022-02-01 00:09:21,693 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 3936 transitions. Word has length 196 [2022-02-01 00:09:21,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:09:21,693 INFO L470 AbstractCegarLoop]: Abstraction has 2716 states and 3936 transitions. [2022-02-01 00:09:21,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.666666666666666) internal successors, (128), 11 states have internal predecessors, (128), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:21,693 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 3936 transitions. [2022-02-01 00:09:21,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-01 00:09:21,695 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:09:21,696 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] [2022-02-01 00:09:21,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-01 00:09:21,696 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:09:21,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:09:21,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1137461590, now seen corresponding path program 1 times [2022-02-01 00:09:21,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:09:21,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853416145] [2022-02-01 00:09:21,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:09:21,737 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:09:21,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:09:21,748 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:09:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:22,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:09:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:22,526 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 00:09:22,526 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:09:22,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853416145] [2022-02-01 00:09:22,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1853416145] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:09:22,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:09:22,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-01 00:09:22,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41385707] [2022-02-01 00:09:22,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:09:22,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-01 00:09:22,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:09:22,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-01 00:09:22,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-01 00:09:22,528 INFO L87 Difference]: Start difference. First operand 2716 states and 3936 transitions. Second operand has 11 states, 10 states have (on average 14.0) internal successors, (140), 9 states have internal predecessors, (140), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:24,538 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 00:09:26,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:09:26,756 INFO L93 Difference]: Finished difference Result 5838 states and 8432 transitions. [2022-02-01 00:09:26,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-01 00:09:26,756 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 9 states have internal predecessors, (140), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-02-01 00:09:26,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:09:26,775 INFO L225 Difference]: With dead ends: 5838 [2022-02-01 00:09:26,775 INFO L226 Difference]: Without dead ends: 3177 [2022-02-01 00:09:26,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-02-01 00:09:26,779 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 336 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 2079 mSolverCounterSat, 95 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2079 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-01 00:09:26,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 1688 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2079 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-02-01 00:09:26,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2022-02-01 00:09:27,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 2710. [2022-02-01 00:09:27,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2710 states, 2705 states have (on average 1.4491682070240295) internal successors, (3920), 2705 states have internal predecessors, (3920), 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 00:09:27,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2710 states to 2710 states and 3924 transitions. [2022-02-01 00:09:27,102 INFO L78 Accepts]: Start accepts. Automaton has 2710 states and 3924 transitions. Word has length 197 [2022-02-01 00:09:27,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:09:27,102 INFO L470 AbstractCegarLoop]: Abstraction has 2710 states and 3924 transitions. [2022-02-01 00:09:27,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 9 states have internal predecessors, (140), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:27,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2710 states and 3924 transitions. [2022-02-01 00:09:27,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-02-01 00:09:27,105 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:09:27,105 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:09:27,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-01 00:09:27,105 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:09:27,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:09:27,106 INFO L85 PathProgramCache]: Analyzing trace with hash -421124008, now seen corresponding path program 1 times [2022-02-01 00:09:27,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:09:27,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059915823] [2022-02-01 00:09:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:09:27,139 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:09:27,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:09:27,149 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:09:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:27,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:09:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:27,272 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 00:09:27,272 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:09:27,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2059915823] [2022-02-01 00:09:27,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2059915823] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:09:27,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:09:27,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:09:27,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505826474] [2022-02-01 00:09:27,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:09:27,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:09:27,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:09:27,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:09:27,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:09:27,273 INFO L87 Difference]: Start difference. First operand 2710 states and 3924 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:28,890 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 [] [2022-02-01 00:09:30,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:33,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:34,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:09:34,049 INFO L93 Difference]: Finished difference Result 5561 states and 8060 transitions. [2022-02-01 00:09:34,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:09:34,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 207 [2022-02-01 00:09:34,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:09:34,082 INFO L225 Difference]: With dead ends: 5561 [2022-02-01 00:09:34,082 INFO L226 Difference]: Without dead ends: 2906 [2022-02-01 00:09:34,085 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 00:09:34,086 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 28 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:09:34,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 560 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 425 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-02-01 00:09:34,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2022-02-01 00:09:34,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2840. [2022-02-01 00:09:34,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 2835 states have (on average 1.4497354497354498) internal successors, (4110), 2835 states have internal predecessors, (4110), 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 00:09:34,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 4114 transitions. [2022-02-01 00:09:34,422 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 4114 transitions. Word has length 207 [2022-02-01 00:09:34,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:09:34,422 INFO L470 AbstractCegarLoop]: Abstraction has 2840 states and 4114 transitions. [2022-02-01 00:09:34,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:34,423 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 4114 transitions. [2022-02-01 00:09:34,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-02-01 00:09:34,425 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:09:34,426 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 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] [2022-02-01 00:09:34,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-01 00:09:34,426 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:09:34,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:09:34,426 INFO L85 PathProgramCache]: Analyzing trace with hash -171237101, now seen corresponding path program 1 times [2022-02-01 00:09:34,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:09:34,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158920501] [2022-02-01 00:09:34,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:09:34,470 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:09:34,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:09:34,480 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:09:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:34,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:09:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:34,576 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 00:09:34,576 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:09:34,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [158920501] [2022-02-01 00:09:34,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [158920501] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:09:34,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:09:34,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:09:34,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345748177] [2022-02-01 00:09:34,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:09:34,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:09:34,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:09:34,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:09:34,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:09:34,577 INFO L87 Difference]: Start difference. First operand 2840 states and 4114 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:35,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:37,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:38,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:40,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:41,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:09:41,846 INFO L93 Difference]: Finished difference Result 5891 states and 8519 transitions. [2022-02-01 00:09:41,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:09:41,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 215 [2022-02-01 00:09:41,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:09:41,851 INFO L225 Difference]: With dead ends: 5891 [2022-02-01 00:09:41,851 INFO L226 Difference]: Without dead ends: 3106 [2022-02-01 00:09:41,854 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 00:09:41,855 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 108 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-01 00:09:41,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 398 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 476 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-02-01 00:09:41,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2022-02-01 00:09:42,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 2840. [2022-02-01 00:09:42,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 2835 states have (on average 1.434567901234568) internal successors, (4067), 2835 states have internal predecessors, (4067), 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 00:09:42,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 4071 transitions. [2022-02-01 00:09:42,204 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 4071 transitions. Word has length 215 [2022-02-01 00:09:42,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:09:42,205 INFO L470 AbstractCegarLoop]: Abstraction has 2840 states and 4071 transitions. [2022-02-01 00:09:42,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:42,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 4071 transitions. [2022-02-01 00:09:42,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-02-01 00:09:42,208 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:09:42,208 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 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] [2022-02-01 00:09:42,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-01 00:09:42,208 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:09:42,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:09:42,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1933902434, now seen corresponding path program 1 times [2022-02-01 00:09:42,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:09:42,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47957225] [2022-02-01 00:09:42,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:09:42,251 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:09:42,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:09:42,261 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:09:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:42,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:09:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:42,372 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 00:09:42,372 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:09:42,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47957225] [2022-02-01 00:09:42,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [47957225] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:09:42,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:09:42,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:09:42,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761515967] [2022-02-01 00:09:42,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:09:42,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:09:42,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:09:42,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:09:42,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:09:42,373 INFO L87 Difference]: Start difference. First operand 2840 states and 4071 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 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 00:09:44,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:45,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:46,740 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 00:09:48,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:09:48,306 INFO L93 Difference]: Finished difference Result 5157 states and 7365 transitions. [2022-02-01 00:09:48,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:09:48,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 216 [2022-02-01 00:09:48,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:09:48,310 INFO L225 Difference]: With dead ends: 5157 [2022-02-01 00:09:48,310 INFO L226 Difference]: Without dead ends: 2901 [2022-02-01 00:09:48,313 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 00:09:48,313 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 55 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:09:48,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 562 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-02-01 00:09:48,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2022-02-01 00:09:48,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 2840. [2022-02-01 00:09:48,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 2835 states have (on average 1.4335097001763668) internal successors, (4064), 2835 states have internal predecessors, (4064), 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 00:09:48,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 4068 transitions. [2022-02-01 00:09:48,659 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 4068 transitions. Word has length 216 [2022-02-01 00:09:48,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:09:48,659 INFO L470 AbstractCegarLoop]: Abstraction has 2840 states and 4068 transitions. [2022-02-01 00:09:48,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 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 00:09:48,659 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 4068 transitions. [2022-02-01 00:09:48,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-02-01 00:09:48,662 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:09:48,662 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-02-01 00:09:48,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-01 00:09:48,662 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:09:48,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:09:48,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1914582207, now seen corresponding path program 1 times [2022-02-01 00:09:48,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:09:48,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933403095] [2022-02-01 00:09:48,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:09:48,708 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:09:48,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:09:48,719 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:09:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:48,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:09:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:48,807 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 00:09:48,807 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:09:48,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933403095] [2022-02-01 00:09:48,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1933403095] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:09:48,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:09:48,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:09:48,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044289740] [2022-02-01 00:09:48,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:09:48,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:09:48,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:09:48,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:09:48,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:09:48,808 INFO L87 Difference]: Start difference. First operand 2840 states and 4068 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:49,986 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 00:09:52,920 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 00:09:54,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:09:54,144 INFO L93 Difference]: Finished difference Result 5157 states and 7359 transitions. [2022-02-01 00:09:54,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:09:54,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 226 [2022-02-01 00:09:54,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:09:54,147 INFO L225 Difference]: With dead ends: 5157 [2022-02-01 00:09:54,147 INFO L226 Difference]: Without dead ends: 2901 [2022-02-01 00:09:54,150 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 00:09:54,150 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 48 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-01 00:09:54,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 562 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-01 00:09:54,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2022-02-01 00:09:54,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 2840. [2022-02-01 00:09:54,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 2835 states have (on average 1.4324514991181658) internal successors, (4061), 2835 states have internal predecessors, (4061), 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 00:09:54,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 4065 transitions. [2022-02-01 00:09:54,488 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 4065 transitions. Word has length 226 [2022-02-01 00:09:54,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:09:54,488 INFO L470 AbstractCegarLoop]: Abstraction has 2840 states and 4065 transitions. [2022-02-01 00:09:54,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:54,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 4065 transitions. [2022-02-01 00:09:54,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-01 00:09:54,492 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:09:54,492 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-02-01 00:09:54,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-01 00:09:54,492 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:09:54,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:09:54,492 INFO L85 PathProgramCache]: Analyzing trace with hash 2134650059, now seen corresponding path program 1 times [2022-02-01 00:09:54,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:09:54,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065398555] [2022-02-01 00:09:54,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:09:54,536 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:09:54,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:09:54,548 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:09:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:54,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:09:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:54,636 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 00:09:54,636 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:09:54,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065398555] [2022-02-01 00:09:54,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1065398555] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:09:54,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:09:54,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:09:54,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439619532] [2022-02-01 00:09:54,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:09:54,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:09:54,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:09:54,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:09:54,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:09:54,638 INFO L87 Difference]: Start difference. First operand 2840 states and 4065 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:57,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:59,377 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 00:10:00,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:10:00,154 INFO L93 Difference]: Finished difference Result 5145 states and 7338 transitions. [2022-02-01 00:10:00,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:10:00,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 227 [2022-02-01 00:10:00,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:10:00,158 INFO L225 Difference]: With dead ends: 5145 [2022-02-01 00:10:00,158 INFO L226 Difference]: Without dead ends: 2889 [2022-02-01 00:10:00,161 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 00:10:00,162 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 43 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:10:00,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 566 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-01 00:10:00,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2022-02-01 00:10:00,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 2840. [2022-02-01 00:10:00,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 2835 states have (on average 1.4313932980599646) internal successors, (4058), 2835 states have internal predecessors, (4058), 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 00:10:00,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 4062 transitions. [2022-02-01 00:10:00,505 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 4062 transitions. Word has length 227 [2022-02-01 00:10:00,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:10:00,506 INFO L470 AbstractCegarLoop]: Abstraction has 2840 states and 4062 transitions. [2022-02-01 00:10:00,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:10:00,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 4062 transitions. [2022-02-01 00:10:00,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-02-01 00:10:00,509 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:10:00,509 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, 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] [2022-02-01 00:10:00,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-01 00:10:00,509 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:10:00,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:10:00,509 INFO L85 PathProgramCache]: Analyzing trace with hash -809738810, now seen corresponding path program 1 times [2022-02-01 00:10:00,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:10:00,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107093397] [2022-02-01 00:10:00,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:10:00,575 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:10:00,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:10:00,587 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:10:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:10:00,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:10:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:10:00,769 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 00:10:00,769 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:10:00,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107093397] [2022-02-01 00:10:00,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1107093397] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:10:00,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:10:00,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:10:00,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605163206] [2022-02-01 00:10:00,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:10:00,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:10:00,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:10:00,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:10:00,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:10:00,770 INFO L87 Difference]: Start difference. First operand 2840 states and 4062 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 00:10:02,503 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 00:10:04,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:10:07,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:10:08,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:10:08,329 INFO L93 Difference]: Finished difference Result 5731 states and 8206 transitions. [2022-02-01 00:10:08,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:10:08,330 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 235 [2022-02-01 00:10:08,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:10:08,334 INFO L225 Difference]: With dead ends: 5731 [2022-02-01 00:10:08,334 INFO L226 Difference]: Without dead ends: 2946 [2022-02-01 00:10:08,338 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 00:10:08,340 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 38 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:10:08,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 548 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 454 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-02-01 00:10:08,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2022-02-01 00:10:08,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2840. [2022-02-01 00:10:08,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 2835 states have (on average 1.4296296296296296) internal successors, (4053), 2835 states have internal predecessors, (4053), 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 00:10:08,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 4057 transitions. [2022-02-01 00:10:08,701 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 4057 transitions. Word has length 235 [2022-02-01 00:10:08,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:10:08,701 INFO L470 AbstractCegarLoop]: Abstraction has 2840 states and 4057 transitions. [2022-02-01 00:10:08,701 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 00:10:08,701 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 4057 transitions. [2022-02-01 00:10:08,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-02-01 00:10:08,704 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:10:08,705 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:10:08,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-01 00:10:08,705 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:10:08,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:10:08,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1869281786, now seen corresponding path program 1 times [2022-02-01 00:10:08,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:10:08,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079277530] [2022-02-01 00:10:08,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:10:08,781 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:10:08,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:10:08,792 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:10:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:10:08,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:10:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:10:08,918 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 00:10:08,919 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:10:08,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079277530] [2022-02-01 00:10:08,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2079277530] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:10:08,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:10:08,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:10:08,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398467662] [2022-02-01 00:10:08,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:10:08,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:10:08,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:10:08,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:10:08,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:10:08,920 INFO L87 Difference]: Start difference. First operand 2840 states and 4057 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:10:11,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:10:12,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:10:13,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:10:13,211 INFO L93 Difference]: Finished difference Result 5145 states and 7323 transitions. [2022-02-01 00:10:13,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:10:13,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 237 [2022-02-01 00:10:13,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:10:13,214 INFO L225 Difference]: With dead ends: 5145 [2022-02-01 00:10:13,215 INFO L226 Difference]: Without dead ends: 2889 [2022-02-01 00:10:13,218 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 00:10:13,218 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 52 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-01 00:10:13,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 564 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-02-01 00:10:13,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2022-02-01 00:10:13,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 2840. [2022-02-01 00:10:13,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 2835 states have (on average 1.4285714285714286) internal successors, (4050), 2835 states have internal predecessors, (4050), 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 00:10:13,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 4054 transitions. [2022-02-01 00:10:13,579 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 4054 transitions. Word has length 237 [2022-02-01 00:10:13,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:10:13,579 INFO L470 AbstractCegarLoop]: Abstraction has 2840 states and 4054 transitions. [2022-02-01 00:10:13,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:10:13,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 4054 transitions. [2022-02-01 00:10:13,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-02-01 00:10:13,582 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:10:13,583 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:10:13,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-01 00:10:13,583 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:10:13,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:10:13,583 INFO L85 PathProgramCache]: Analyzing trace with hash 434741929, now seen corresponding path program 1 times [2022-02-01 00:10:13,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:10:13,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183905706] [2022-02-01 00:10:13,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:10:13,658 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:10:13,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:10:13,670 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:10:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:10:13,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:10:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:10:13,771 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 00:10:13,772 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:10:13,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1183905706] [2022-02-01 00:10:13,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1183905706] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:10:13,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:10:13,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:10:13,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795901887] [2022-02-01 00:10:13,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:10:13,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:10:13,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:10:13,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:10:13,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:10:13,773 INFO L87 Difference]: Start difference. First operand 2840 states and 4054 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 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 00:10:15,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:10:17,923 WARN L534 Checker$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 00:10:19,947 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 00:10:20,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:10:20,630 INFO L93 Difference]: Finished difference Result 5133 states and 7302 transitions. [2022-02-01 00:10:20,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:10:20,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 238 [2022-02-01 00:10:20,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:10:20,634 INFO L225 Difference]: With dead ends: 5133 [2022-02-01 00:10:20,635 INFO L226 Difference]: Without dead ends: 2877 [2022-02-01 00:10:20,638 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 00:10:20,638 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 46 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:10:20,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 556 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 464 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-02-01 00:10:20,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2022-02-01 00:10:20,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 2840. [2022-02-01 00:10:20,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 2835 states have (on average 1.4275132275132276) internal successors, (4047), 2835 states have internal predecessors, (4047), 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 00:10:20,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 4051 transitions. [2022-02-01 00:10:20,969 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 4051 transitions. Word has length 238 [2022-02-01 00:10:20,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:10:20,970 INFO L470 AbstractCegarLoop]: Abstraction has 2840 states and 4051 transitions. [2022-02-01 00:10:20,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 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 00:10:20,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 4051 transitions. [2022-02-01 00:10:20,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-02-01 00:10:20,973 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:10:20,973 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:10:20,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-01 00:10:20,973 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:10:20,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:10:20,974 INFO L85 PathProgramCache]: Analyzing trace with hash 900100725, now seen corresponding path program 1 times [2022-02-01 00:10:20,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:10:20,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941418351] [2022-02-01 00:10:20,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:10:29,999 WARN L228 SmtUtils]: Spent 6.20s on a formula simplification. DAG size of input: 268 DAG size of output: 214 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:10:41,010 WARN L228 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:10:42,701 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:10:42,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:10:42,714 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:10:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:10:43,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:10:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:10:43,856 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 00:10:43,856 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:10:43,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941418351] [2022-02-01 00:10:43,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [941418351] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:10:43,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:10:43,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-01 00:10:43,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646787493] [2022-02-01 00:10:43,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:10:43,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-01 00:10:43,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:10:43,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-01 00:10:43,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-01 00:10:43,857 INFO L87 Difference]: Start difference. First operand 2840 states and 4051 transitions. Second operand has 10 states, 9 states have (on average 16.0) internal successors, (144), 8 states have internal predecessors, (144), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:10:46,648 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 00:10:48,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:10:50,621 WARN L534 Checker$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 00:10:52,645 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 00:10:55,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:10:55,470 INFO L93 Difference]: Finished difference Result 6366 states and 9047 transitions. [2022-02-01 00:10:55,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-01 00:10:55,471 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 16.0) internal successors, (144), 8 states have internal predecessors, (144), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 238 [2022-02-01 00:10:55,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:10:55,489 INFO L225 Difference]: With dead ends: 6366 [2022-02-01 00:10:55,489 INFO L226 Difference]: Without dead ends: 3581 [2022-02-01 00:10:55,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-02-01 00:10:55,496 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 450 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 147 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 1641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-02-01 00:10:55,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [450 Valid, 1229 Invalid, 1641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1491 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2022-02-01 00:10:55,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3581 states. [2022-02-01 00:10:56,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3581 to 2840. [2022-02-01 00:10:56,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 2835 states have (on average 1.4268077601410936) internal successors, (4045), 2835 states have internal predecessors, (4045), 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 00:10:56,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 4049 transitions. [2022-02-01 00:10:56,037 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 4049 transitions. Word has length 238 [2022-02-01 00:10:56,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:10:56,037 INFO L470 AbstractCegarLoop]: Abstraction has 2840 states and 4049 transitions. [2022-02-01 00:10:56,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 16.0) internal successors, (144), 8 states have internal predecessors, (144), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:10:56,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 4049 transitions. [2022-02-01 00:10:56,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-02-01 00:10:56,041 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:10:56,041 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:10:56,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-01 00:10:56,042 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:10:56,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:10:56,042 INFO L85 PathProgramCache]: Analyzing trace with hash 827561738, now seen corresponding path program 1 times [2022-02-01 00:10:56,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:10:56,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [396259021] [2022-02-01 00:10:56,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:11:06,393 WARN L228 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 268 DAG size of output: 214 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:11:18,521 WARN L228 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:11:21,497 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:11:21,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:11:21,511 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:11:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:11:22,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:11:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:11:22,582 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 00:11:22,582 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:11:22,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [396259021] [2022-02-01 00:11:22,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [396259021] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:11:22,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:11:22,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-01 00:11:22,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311420640] [2022-02-01 00:11:22,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:11:22,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-01 00:11:22,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:11:22,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-01 00:11:22,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-01 00:11:22,583 INFO L87 Difference]: Start difference. First operand 2840 states and 4049 transitions. Second operand has 10 states, 9 states have (on average 16.11111111111111) internal successors, (145), 8 states have internal predecessors, (145), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:11:24,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:11:26,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:11:26,647 INFO L93 Difference]: Finished difference Result 5975 states and 8485 transitions. [2022-02-01 00:11:26,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-01 00:11:26,647 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 16.11111111111111) internal successors, (145), 8 states have internal predecessors, (145), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-02-01 00:11:26,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:11:26,652 INFO L225 Difference]: With dead ends: 5975 [2022-02-01 00:11:26,652 INFO L226 Difference]: Without dead ends: 3190 [2022-02-01 00:11:26,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-02-01 00:11:26,658 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 280 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 66 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 1978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:11:26,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 1549 Invalid, 1978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1911 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-02-01 00:11:26,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3190 states. [2022-02-01 00:11:27,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3190 to 2720. [2022-02-01 00:11:27,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2720 states, 2715 states have (on average 1.4206261510128912) internal successors, (3857), 2715 states have internal predecessors, (3857), 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 00:11:27,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2720 states to 2720 states and 3861 transitions. [2022-02-01 00:11:27,043 INFO L78 Accepts]: Start accepts. Automaton has 2720 states and 3861 transitions. Word has length 239 [2022-02-01 00:11:27,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:11:27,043 INFO L470 AbstractCegarLoop]: Abstraction has 2720 states and 3861 transitions. [2022-02-01 00:11:27,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 16.11111111111111) internal successors, (145), 8 states have internal predecessors, (145), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:11:27,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2720 states and 3861 transitions. [2022-02-01 00:11:27,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-02-01 00:11:27,046 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:11:27,047 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:11:27,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-01 00:11:27,047 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:11:27,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:11:27,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1222942303, now seen corresponding path program 1 times [2022-02-01 00:11:27,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:11:27,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1264487695] [2022-02-01 00:11:27,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:11:39,735 WARN L228 SmtUtils]: Spent 12.23s on a formula simplification. DAG size of input: 193 DAG size of output: 192 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:11:49,465 WARN L228 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 268 DAG size of output: 214 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:12:05,648 WARN L228 SmtUtils]: Spent 10.23s on a formula simplification. DAG size of input: 193 DAG size of output: 190 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:12:12,867 WARN L228 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:12:14,667 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:12:14,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:12:14,690 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:12:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:12:15,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:12:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:12:15,256 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 00:12:15,256 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:12:15,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1264487695] [2022-02-01 00:12:15,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1264487695] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:12:15,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:12:15,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-01 00:12:15,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369091337] [2022-02-01 00:12:15,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:12:15,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-01 00:12:15,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:12:15,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-01 00:12:15,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-01 00:12:15,258 INFO L87 Difference]: Start difference. First operand 2720 states and 3861 transitions. Second operand has 10 states, 9 states have (on average 16.444444444444443) internal successors, (148), 8 states have internal predecessors, (148), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:12:16,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:12:18,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:12:20,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:12:22,531 WARN L534 Checker$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 00:12:24,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:12:25,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:12:26,873 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 00:12:28,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:12:28,551 INFO L93 Difference]: Finished difference Result 5611 states and 7919 transitions. [2022-02-01 00:12:28,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-01 00:12:28,552 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 16.444444444444443) internal successors, (148), 8 states have internal predecessors, (148), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 252 [2022-02-01 00:12:28,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:12:28,556 INFO L225 Difference]: With dead ends: 5611 [2022-02-01 00:12:28,556 INFO L226 Difference]: Without dead ends: 3355 [2022-02-01 00:12:28,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-02-01 00:12:28,560 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 424 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 132 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-02-01 00:12:28,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 1056 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1291 Invalid, 3 Unknown, 0 Unchecked, 12.7s Time] [2022-02-01 00:12:28,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-02-01 00:12:28,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 2720. [2022-02-01 00:12:28,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2720 states, 2715 states have (on average 1.4202578268876611) internal successors, (3856), 2715 states have internal predecessors, (3856), 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 00:12:28,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2720 states to 2720 states and 3860 transitions. [2022-02-01 00:12:28,912 INFO L78 Accepts]: Start accepts. Automaton has 2720 states and 3860 transitions. Word has length 252 [2022-02-01 00:12:28,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:12:28,912 INFO L470 AbstractCegarLoop]: Abstraction has 2720 states and 3860 transitions. [2022-02-01 00:12:28,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 16.444444444444443) internal successors, (148), 8 states have internal predecessors, (148), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:12:28,913 INFO L276 IsEmpty]: Start isEmpty. Operand 2720 states and 3860 transitions. [2022-02-01 00:12:28,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-02-01 00:12:28,916 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:12:28,916 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:12:28,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-01 00:12:28,916 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:12:28,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:12:28,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1021853105, now seen corresponding path program 1 times [2022-02-01 00:12:28,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:12:28,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674609139] [2022-02-01 00:12:28,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:12:36,377 WARN L228 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 268 DAG size of output: 214 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:12:49,173 WARN L228 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:12:52,886 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:12:52,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:12:52,900 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:12:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:12:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:12:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:12:52,996 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 00:12:52,997 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:12:52,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674609139] [2022-02-01 00:12:52,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1674609139] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:12:52,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:12:52,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:12:52,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578419832] [2022-02-01 00:12:52,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:12:52,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:12:52,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:12:52,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:12:52,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:12:52,998 INFO L87 Difference]: Start difference. First operand 2720 states and 3860 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 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 00:12:54,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:12:56,430 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 00:12:58,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:12:58,300 INFO L93 Difference]: Finished difference Result 5645 states and 8004 transitions. [2022-02-01 00:12:58,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:12:58,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 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 259 [2022-02-01 00:12:58,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:12:58,304 INFO L225 Difference]: With dead ends: 5645 [2022-02-01 00:12:58,304 INFO L226 Difference]: Without dead ends: 2980 [2022-02-01 00:12:58,308 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 00:12:58,309 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 112 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-01 00:12:58,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 409 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-02-01 00:12:58,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2980 states. [2022-02-01 00:12:58,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2980 to 2720. [2022-02-01 00:12:58,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2720 states, 2715 states have (on average 1.3996316758747698) internal successors, (3800), 2715 states have internal predecessors, (3800), 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 00:12:58,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2720 states to 2720 states and 3804 transitions. [2022-02-01 00:12:58,710 INFO L78 Accepts]: Start accepts. Automaton has 2720 states and 3804 transitions. Word has length 259 [2022-02-01 00:12:58,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:12:58,710 INFO L470 AbstractCegarLoop]: Abstraction has 2720 states and 3804 transitions. [2022-02-01 00:12:58,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 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 00:12:58,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2720 states and 3804 transitions. [2022-02-01 00:12:58,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-02-01 00:12:58,713 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:12:58,714 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:12:58,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-01 00:12:58,714 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:12:58,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:12:58,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1264715200, now seen corresponding path program 1 times [2022-02-01 00:12:58,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:12:58,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082153740] [2022-02-01 00:12:58,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:13:06,049 WARN L228 SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 268 DAG size of output: 214 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:13:18,515 WARN L228 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:13:22,115 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:13:22,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:13:22,131 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:13:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:13:22,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:13:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:13:22,335 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 00:13:22,336 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:13:22,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082153740] [2022-02-01 00:13:22,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2082153740] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:13:22,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:13:22,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:13:22,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122469293] [2022-02-01 00:13:22,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:13:22,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:13:22,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:13:22,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:13:22,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:13:22,341 INFO L87 Difference]: Start difference. First operand 2720 states and 3804 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 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 00:13:24,355 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 00:13:25,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:13:25,426 INFO L93 Difference]: Finished difference Result 5644 states and 7891 transitions. [2022-02-01 00:13:25,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:13:25,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 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 260 [2022-02-01 00:13:25,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:13:25,433 INFO L225 Difference]: With dead ends: 5644 [2022-02-01 00:13:25,433 INFO L226 Difference]: Without dead ends: 2979 [2022-02-01 00:13:25,436 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 00:13:25,439 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 111 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:13:25,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 358 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:13:25,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2022-02-01 00:13:25,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2720. [2022-02-01 00:13:25,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2720 states, 2715 states have (on average 1.3790055248618784) internal successors, (3744), 2715 states have internal predecessors, (3744), 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 00:13:25,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2720 states to 2720 states and 3748 transitions. [2022-02-01 00:13:25,939 INFO L78 Accepts]: Start accepts. Automaton has 2720 states and 3748 transitions. Word has length 260 [2022-02-01 00:13:25,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:13:25,939 INFO L470 AbstractCegarLoop]: Abstraction has 2720 states and 3748 transitions. [2022-02-01 00:13:25,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 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 00:13:25,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2720 states and 3748 transitions. [2022-02-01 00:13:25,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-02-01 00:13:25,942 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:13:25,942 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] [2022-02-01 00:13:25,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-01 00:13:25,942 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:13:25,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:13:25,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1455712639, now seen corresponding path program 1 times [2022-02-01 00:13:25,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:13:25,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394320634] [2022-02-01 00:13:25,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:13:25,989 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:13:25,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:13:26,003 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:13:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:13:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:13:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:13:26,107 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 00:13:26,108 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:13:26,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394320634] [2022-02-01 00:13:26,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1394320634] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:13:26,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:13:26,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:13:26,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202228263] [2022-02-01 00:13:26,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:13:26,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:13:26,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:13:26,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:13:26,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:13:26,109 INFO L87 Difference]: Start difference. First operand 2720 states and 3748 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:13:27,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:13:29,257 WARN L534 Checker$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 00:13:31,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:13:33,306 WARN L534 Checker$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 00:13:34,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:13:34,123 INFO L93 Difference]: Finished difference Result 5441 states and 7497 transitions. [2022-02-01 00:13:34,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:13:34,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 260 [2022-02-01 00:13:34,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:13:34,128 INFO L225 Difference]: With dead ends: 5441 [2022-02-01 00:13:34,128 INFO L226 Difference]: Without dead ends: 2776 [2022-02-01 00:13:34,131 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 00:13:34,131 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 24 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-01 00:13:34,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 556 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 426 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-02-01 00:13:34,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2022-02-01 00:13:34,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 2720. [2022-02-01 00:13:34,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2720 states, 2715 states have (on average 1.3771639042357275) internal successors, (3739), 2715 states have internal predecessors, (3739), 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 00:13:34,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2720 states to 2720 states and 3743 transitions. [2022-02-01 00:13:34,509 INFO L78 Accepts]: Start accepts. Automaton has 2720 states and 3743 transitions. Word has length 260 [2022-02-01 00:13:34,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:13:34,510 INFO L470 AbstractCegarLoop]: Abstraction has 2720 states and 3743 transitions. [2022-02-01 00:13:34,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:13:34,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2720 states and 3743 transitions. [2022-02-01 00:13:34,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-02-01 00:13:34,512 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:13:34,513 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] [2022-02-01 00:13:34,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-01 00:13:34,513 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:13:34,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:13:34,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1441261778, now seen corresponding path program 1 times [2022-02-01 00:13:34,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:13:34,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653134109] [2022-02-01 00:13:34,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:13:34,566 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:13:34,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:13:34,581 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:13:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:13:35,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:13:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:13:35,019 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 00:13:35,019 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:13:35,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653134109] [2022-02-01 00:13:35,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [653134109] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:13:35,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:13:35,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-01 00:13:35,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991372727] [2022-02-01 00:13:35,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:13:35,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-01 00:13:35,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:13:35,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-01 00:13:35,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-02-01 00:13:35,021 INFO L87 Difference]: Start difference. First operand 2720 states and 3743 transitions. Second operand has 9 states, 8 states have (on average 17.125) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:13:37,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:13:39,827 WARN L534 Checker$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 00:13:41,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:13:43,883 WARN L534 Checker$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 00:13:45,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:13:45,292 INFO L93 Difference]: Finished difference Result 5629 states and 7738 transitions. [2022-02-01 00:13:45,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-01 00:13:45,293 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 17.125) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 265 [2022-02-01 00:13:45,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:13:45,296 INFO L225 Difference]: With dead ends: 5629 [2022-02-01 00:13:45,296 INFO L226 Difference]: Without dead ends: 2964 [2022-02-01 00:13:45,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-02-01 00:13:45,300 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 153 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 45 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-02-01 00:13:45,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 1068 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1201 Invalid, 3 Unknown, 0 Unchecked, 9.7s Time] [2022-02-01 00:13:45,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2022-02-01 00:13:45,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2848. [2022-02-01 00:13:45,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2843 states have (on average 1.3753077734787196) internal successors, (3910), 2843 states have internal predecessors, (3910), 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 00:13:45,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 3914 transitions. [2022-02-01 00:13:45,709 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 3914 transitions. Word has length 265 [2022-02-01 00:13:45,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:13:45,709 INFO L470 AbstractCegarLoop]: Abstraction has 2848 states and 3914 transitions. [2022-02-01 00:13:45,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 17.125) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:13:45,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 3914 transitions. [2022-02-01 00:13:45,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-02-01 00:13:45,714 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:13:45,714 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:13:45,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-01 00:13:45,714 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:13:45,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:13:45,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1681834354, now seen corresponding path program 1 times [2022-02-01 00:13:45,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:13:45,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207711322] [2022-02-01 00:13:45,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:13:52,902 WARN L228 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:13:57,401 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:13:57,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:13:57,415 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:13:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:13:57,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:13:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:13:57,532 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 00:13:57,533 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:13:57,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207711322] [2022-02-01 00:13:57,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1207711322] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:13:57,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:13:57,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-01 00:13:57,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138678617] [2022-02-01 00:13:57,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:13:57,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-01 00:13:57,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:13:57,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-01 00:13:57,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-01 00:13:57,534 INFO L87 Difference]: Start difference. First operand 2848 states and 3914 transitions. Second operand has 7 states, 7 states have (on average 22.0) internal successors, (154), 6 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 00:13:59,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:14:01,247 WARN L534 Checker$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 00:14:02,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:14:04,071 WARN L534 Checker$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 00:14:05,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:14:05,833 INFO L93 Difference]: Finished difference Result 6566 states and 9013 transitions. [2022-02-01 00:14:05,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-01 00:14:05,834 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.0) internal successors, (154), 6 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 276 [2022-02-01 00:14:05,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:14:05,839 INFO L225 Difference]: With dead ends: 6566 [2022-02-01 00:14:05,839 INFO L226 Difference]: Without dead ends: 3746 [2022-02-01 00:14:05,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-02-01 00:14:05,844 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 189 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 75 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-01 00:14:05,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 729 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 944 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-02-01 00:14:05,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2022-02-01 00:14:06,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 2924. [2022-02-01 00:14:06,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2924 states, 2919 states have (on average 1.3508050702295307) internal successors, (3943), 2919 states have internal predecessors, (3943), 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 00:14:06,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 3947 transitions. [2022-02-01 00:14:06,288 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 3947 transitions. Word has length 276 [2022-02-01 00:14:06,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:14:06,288 INFO L470 AbstractCegarLoop]: Abstraction has 2924 states and 3947 transitions. [2022-02-01 00:14:06,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.0) internal successors, (154), 6 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 00:14:06,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 3947 transitions. [2022-02-01 00:14:06,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-02-01 00:14:06,291 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:14:06,291 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:14:06,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-01 00:14:06,292 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:14:06,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:14:06,292 INFO L85 PathProgramCache]: Analyzing trace with hash -435978530, now seen corresponding path program 1 times [2022-02-01 00:14:06,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:14:06,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815399749] [2022-02-01 00:14:06,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:14:15,173 WARN L228 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:14:19,218 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:14:19,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:14:19,234 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:14:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:19,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:14:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:19,379 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 00:14:19,379 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:14:19,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815399749] [2022-02-01 00:14:19,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1815399749] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:14:19,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:14:19,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:14:19,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247639581] [2022-02-01 00:14:19,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:14:19,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:14:19,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:14:19,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:14:19,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:14:19,380 INFO L87 Difference]: Start difference. First operand 2924 states and 3947 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:14:20,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:14:23,019 WARN L534 Checker$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 00:14:25,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:14:27,063 WARN L534 Checker$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 00:14:27,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:14:27,893 INFO L93 Difference]: Finished difference Result 5407 states and 7294 transitions. [2022-02-01 00:14:27,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:14:27,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-02-01 00:14:27,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:14:27,897 INFO L225 Difference]: With dead ends: 5407 [2022-02-01 00:14:27,897 INFO L226 Difference]: Without dead ends: 2947 [2022-02-01 00:14:27,919 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 00:14:27,919 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 43 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-02-01 00:14:27,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 542 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 445 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-02-01 00:14:27,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2022-02-01 00:14:28,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 2924. [2022-02-01 00:14:28,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2924 states, 2919 states have (on average 1.3497773210003425) internal successors, (3940), 2919 states have internal predecessors, (3940), 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 00:14:28,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 3944 transitions. [2022-02-01 00:14:28,340 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 3944 transitions. Word has length 277 [2022-02-01 00:14:28,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:14:28,340 INFO L470 AbstractCegarLoop]: Abstraction has 2924 states and 3944 transitions. [2022-02-01 00:14:28,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:14:28,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 3944 transitions. [2022-02-01 00:14:28,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-02-01 00:14:28,343 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:14:28,343 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:14:28,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-01 00:14:28,343 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:14:28,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:14:28,343 INFO L85 PathProgramCache]: Analyzing trace with hash -789852723, now seen corresponding path program 1 times [2022-02-01 00:14:28,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:14:28,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2104044167] [2022-02-01 00:14:28,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:14:35,618 WARN L228 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:14:40,234 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:14:40,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:14:40,251 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:14:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:40,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:14:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:40,348 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 00:14:40,348 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:14:40,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2104044167] [2022-02-01 00:14:40,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2104044167] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:14:40,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:14:40,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:14:40,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613321421] [2022-02-01 00:14:40,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:14:40,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:14:40,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:14:40,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:14:40,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:14:40,349 INFO L87 Difference]: Start difference. First operand 2924 states and 3944 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 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 00:14:41,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:14:44,617 WARN L534 Checker$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 00:14:46,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:14:47,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:14:47,531 INFO L93 Difference]: Finished difference Result 5650 states and 7615 transitions. [2022-02-01 00:14:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:14:47,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 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 278 [2022-02-01 00:14:47,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:14:47,535 INFO L225 Difference]: With dead ends: 5650 [2022-02-01 00:14:47,535 INFO L226 Difference]: Without dead ends: 2754 [2022-02-01 00:14:47,539 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 00:14:47,539 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 112 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-01 00:14:47,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 364 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-02-01 00:14:47,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2022-02-01 00:14:47,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 2470. [2022-02-01 00:14:47,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2465 states have (on average 1.3237322515212981) internal successors, (3263), 2465 states have internal predecessors, (3263), 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 00:14:47,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3267 transitions. [2022-02-01 00:14:47,959 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3267 transitions. Word has length 278 [2022-02-01 00:14:47,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:14:47,959 INFO L470 AbstractCegarLoop]: Abstraction has 2470 states and 3267 transitions. [2022-02-01 00:14:47,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 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 00:14:47,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3267 transitions. [2022-02-01 00:14:47,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-02-01 00:14:47,962 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:14:47,962 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 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] [2022-02-01 00:14:47,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-01 00:14:47,962 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:14:47,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:14:47,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1118956307, now seen corresponding path program 1 times [2022-02-01 00:14:47,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:14:47,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299270553] [2022-02-01 00:14:47,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:14:48,022 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:14:48,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:14:48,040 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:14:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:14:48,562 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-01 00:14:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:14:48,889 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-01 00:14:48,889 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-01 00:14:48,894 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-01 00:14:48,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-01 00:14:48,897 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:14:48,900 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-01 00:14:48,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.02 12:14:48 BoogieIcfgContainer [2022-02-01 00:14:48,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-01 00:14:48,948 INFO L158 Benchmark]: Toolchain (without parser) took 619070.67ms. Allocated memory was 237.0MB in the beginning and 679.5MB in the end (delta: 442.5MB). Free memory was 183.7MB in the beginning and 543.3MB in the end (delta: -359.6MB). Peak memory consumption was 428.3MB. Max. memory is 8.0GB. [2022-02-01 00:14:48,948 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 237.0MB. Free memory is still 202.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-01 00:14:48,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 585.62ms. Allocated memory was 237.0MB in the beginning and 367.0MB in the end (delta: 130.0MB). Free memory was 183.4MB in the beginning and 320.1MB in the end (delta: -136.6MB). Peak memory consumption was 6.5MB. Max. memory is 8.0GB. [2022-02-01 00:14:48,948 INFO L158 Benchmark]: Boogie Preprocessor took 108.08ms. Allocated memory is still 367.0MB. Free memory was 320.1MB in the beginning and 312.4MB in the end (delta: 7.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-02-01 00:14:48,948 INFO L158 Benchmark]: RCFGBuilder took 1631.29ms. Allocated memory is still 367.0MB. Free memory was 312.4MB in the beginning and 280.0MB in the end (delta: 32.4MB). Peak memory consumption was 33.3MB. Max. memory is 8.0GB. [2022-02-01 00:14:48,948 INFO L158 Benchmark]: TraceAbstraction took 616740.85ms. Allocated memory was 367.0MB in the beginning and 679.5MB in the end (delta: 312.5MB). Free memory was 279.5MB in the beginning and 543.3MB in the end (delta: -263.7MB). Peak memory consumption was 393.7MB. Max. memory is 8.0GB. [2022-02-01 00:14:48,948 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 237.0MB. Free memory is still 202.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 585.62ms. Allocated memory was 237.0MB in the beginning and 367.0MB in the end (delta: 130.0MB). Free memory was 183.4MB in the beginning and 320.1MB in the end (delta: -136.6MB). Peak memory consumption was 6.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 108.08ms. Allocated memory is still 367.0MB. Free memory was 320.1MB in the beginning and 312.4MB in the end (delta: 7.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1631.29ms. Allocated memory is still 367.0MB. Free memory was 312.4MB in the beginning and 280.0MB in the end (delta: 32.4MB). Peak memory consumption was 33.3MB. Max. memory is 8.0GB. * TraceAbstraction took 616740.85ms. Allocated memory was 367.0MB in the beginning and 679.5MB in the end (delta: 312.5MB). Free memory was 279.5MB in the beginning and 543.3MB in the end (delta: -263.7MB). Peak memory consumption was 393.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1742]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1465. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1087] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1088] s->options = __VERIFIER_nondet_ulong() [L1089] s->verify_mode = __VERIFIER_nondet_int() [L1090] EXPR s->session [L1090] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1091] EXPR s->s3 [L1091] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1093] EXPR s->s3 [L1093] EXPR (s->s3)->tmp.new_cipher [L1093] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1095] COND FALSE !(__VERIFIER_nondet_int()) [L1101] s->cert = malloc(sizeof(struct cert_st)) [L1102] EXPR s->cert [L1102] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1105] CALL ssl3_accept(s) [L1111] BUF_MEM *buf ; [L1112] unsigned long l ; [L1113] unsigned long Time ; [L1114] unsigned long tmp ; [L1115] void (*cb)() ; [L1116] long num1 ; [L1117] int ret ; [L1118] int new_state ; [L1119] int state ; [L1120] int skip ; [L1121] int got_new_session ; [L1122] int tmp___1 = __VERIFIER_nondet_int() ; [L1123] int tmp___2 = __VERIFIER_nondet_int() ; [L1124] int tmp___3 = __VERIFIER_nondet_int() ; [L1125] int tmp___4 = __VERIFIER_nondet_int() ; [L1126] int tmp___5 = __VERIFIER_nondet_int() ; [L1127] int tmp___6 = __VERIFIER_nondet_int() ; [L1128] int tmp___7 ; [L1129] long tmp___8 = __VERIFIER_nondet_long() ; [L1130] int tmp___9 = __VERIFIER_nondet_int() ; [L1131] int tmp___10 = __VERIFIER_nondet_int() ; [L1132] int blastFlag ; [L1136] s->state = 8464 [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] tmp = __VERIFIER_nondet_int() [L1141] Time = tmp [L1142] cb = (void (*)())((void *)0) [L1143] ret = -1 [L1144] skip = 0 [L1145] got_new_session = 0 [L1146] EXPR s->info_callback [L1146] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1147] EXPR s->info_callback [L1147] cb = s->info_callback [L1151] EXPR s->in_handshake [L1151] s->in_handshake += 1 [L1152] COND FALSE !(tmp___1 & 12288) [L1161] EXPR s->cert [L1161] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND TRUE s->state == 8464 [L1354] s->shutdown = 0 [L1355] ret = __VERIFIER_nondet_int() [L1356] COND TRUE blastFlag == 0 [L1357] blastFlag = 1 [L1361] COND FALSE !(ret <= 0) [L1366] got_new_session = 1 [L1367] s->state = 8496 [L1368] s->init_num = 0 [L1701] EXPR s->s3 [L1701] EXPR (s->s3)->tmp.reuse_message [L1701] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1730] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND TRUE s->state == 8496 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND TRUE blastFlag == 1 [L1374] blastFlag = 2 [L1378] COND FALSE !(ret <= 0) [L1383] s->hit [L1383] COND FALSE !(s->hit) [L1386] s->state = 8512 [L1388] s->init_num = 0 [L1701] EXPR s->s3 [L1701] EXPR (s->s3)->tmp.reuse_message [L1701] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1730] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND TRUE s->state == 8512 [L1392] EXPR s->s3 [L1392] EXPR (s->s3)->tmp.new_cipher [L1392] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1392] COND TRUE ((s->s3)->tmp.new_cipher)->algorithms & 256UL [L1393] skip = 1 [L1402] s->state = 8528 [L1403] s->init_num = 0 [L1701] EXPR s->s3 [L1701] EXPR (s->s3)->tmp.reuse_message [L1701] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1730] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND TRUE s->state == 8528 [L1407] EXPR s->s3 [L1407] EXPR (s->s3)->tmp.new_cipher [L1407] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1407] l = ((s->s3)->tmp.new_cipher)->algorithms [L1408] EXPR s->options [L1408] COND TRUE s->options & 2097152UL [L1409] EXPR s->s3 [L1409] (s->s3)->tmp.use_rsa_tmp = 1 [L1413] EXPR s->s3 [L1413] (s->s3)->tmp.use_rsa_tmp [L1413] COND TRUE (s->s3)->tmp.use_rsa_tmp [L1431] ret = __VERIFIER_nondet_int() [L1432] COND FALSE !(ret <= 0) [L1449] s->state = 8544 [L1450] s->init_num = 0 [L1701] EXPR s->s3 [L1701] EXPR (s->s3)->tmp.reuse_message [L1701] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1730] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND TRUE s->state == 8544 [L1454] EXPR s->verify_mode [L1454] COND TRUE s->verify_mode & 1 [L1455] EXPR s->session [L1455] EXPR (s->session)->peer [L1455] COND FALSE !((unsigned long )(s->session)->peer != (unsigned long )((void *)0)) [L1465] EXPR s->s3 [L1465] EXPR (s->s3)->tmp.new_cipher [L1465] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1465] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1475] EXPR s->s3 [L1475] (s->s3)->tmp.cert_request = 1 [L1476] ret = __VERIFIER_nondet_int() [L1477] COND FALSE !(ret <= 0) [L1482] s->state = 8448 [L1483] EXPR s->s3 [L1483] (s->s3)->tmp.next_state = 8576 [L1484] s->init_num = 0 [L1701] EXPR s->s3 [L1701] EXPR (s->s3)->tmp.reuse_message [L1701] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1730] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND TRUE s->state == 8448 [L1506] COND FALSE !(num1 > 0L) [L1519] EXPR s->s3 [L1519] EXPR (s->s3)->tmp.next_state [L1519] s->state = (s->s3)->tmp.next_state [L1701] EXPR s->s3 [L1701] EXPR (s->s3)->tmp.reuse_message [L1701] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1730] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND TRUE s->state == 8576 [L1523] ret = __VERIFIER_nondet_int() [L1524] COND FALSE !(ret <= 0) [L1529] COND FALSE !(ret == 2) [L1532] ret = __VERIFIER_nondet_int() [L1533] COND FALSE !(ret <= 0) [L1538] s->init_num = 0 [L1539] s->state = 8592 [L1701] EXPR s->s3 [L1701] EXPR (s->s3)->tmp.reuse_message [L1701] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1730] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND TRUE s->state == 8592 [L1544] ret = __VERIFIER_nondet_int() [L1545] COND FALSE !(ret <= 0) [L1550] s->state = 8608 [L1551] s->init_num = 0 [L1701] EXPR s->s3 [L1701] EXPR (s->s3)->tmp.reuse_message [L1701] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1730] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND TRUE s->state == 8608 [L1555] ret = __VERIFIER_nondet_int() [L1556] COND FALSE !(ret <= 0) [L1561] s->state = 8640 [L1562] s->init_num = 0 [L1701] EXPR s->s3 [L1701] EXPR (s->s3)->tmp.reuse_message [L1701] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1730] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND TRUE s->state == 8640 [L1566] ret = __VERIFIER_nondet_int() [L1567] COND FALSE !(blastFlag == 4) [L1742] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 186 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 616.6s, OverallIterations: 70, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 409.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 105 mSolverCounterUnknown, 7123 SdHoareTripleChecker+Valid, 393.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7123 mSDsluCounter, 36934 SdHoareTripleChecker+Invalid, 383.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24596 mSDsCounter, 2355 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38590 IncrementalHoareTripleChecker+Invalid, 41050 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2355 mSolverCounterUnsat, 12338 mSDtfsCounter, 38590 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 640 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 340 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2924occurred in iteration=67, InterpolantAutomatonStates: 386, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 11.5s AutomataMinimizationTime, 69 MinimizatonAttempts, 7814 StatesRemovedByMinimization, 65 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-01 00:14:48,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...