/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_clnt.blast.04.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 04:41:38,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 04:41:38,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 04:41:38,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 04:41:38,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 04:41:38,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 04:41:38,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 04:41:38,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 04:41:38,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 04:41:38,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 04:41:38,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 04:41:38,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 04:41:38,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 04:41:38,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 04:41:38,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 04:41:38,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 04:41:38,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 04:41:38,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 04:41:38,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 04:41:38,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 04:41:38,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 04:41:38,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 04:41:38,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 04:41:38,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 04:41:38,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-15 04:41:38,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-15 04:41:38,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-15 04:41:38,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-15 04:41:38,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-15 04:41:38,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-15 04:41:38,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-15 04:41:38,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-15 04:41:38,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-15 04:41:38,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-15 04:41:38,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-15 04:41:38,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-15 04:41:38,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-15 04:41:38,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-15 04:41:38,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 04:41:38,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 04:41:38,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 04:41:38,129 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-15 04:41:38,143 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 04:41:38,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 04:41:38,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 04:41:38,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 04:41:38,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 04:41:38,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 04:41:38,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 04:41:38,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 04:41:38,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 04:41:38,145 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 04:41:38,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 04:41:38,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 04:41:38,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 04:41:38,146 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 04:41:38,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 04:41:38,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 04:41:38,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 04:41:38,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 04:41:38,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 04:41:38,147 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-15 04:41:38,147 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 04:41:38,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 04:41:38,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 04:41:38,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 04:41:38,375 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 04:41:38,391 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 04:41:38,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c [2022-02-15 04:41:38,443 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/041e8952f/6c97e8108cb14e8b9bf842dc7bf7a387/FLAG7bb68b26f [2022-02-15 04:41:38,903 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 04:41:38,903 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c [2022-02-15 04:41:38,923 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/041e8952f/6c97e8108cb14e8b9bf842dc7bf7a387/FLAG7bb68b26f [2022-02-15 04:41:39,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/041e8952f/6c97e8108cb14e8b9bf842dc7bf7a387 [2022-02-15 04:41:39,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 04:41:39,221 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 04:41:39,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 04:41:39,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 04:41:39,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 04:41:39,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 04:41:39" (1/1) ... [2022-02-15 04:41:39,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1267d93c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:41:39, skipping insertion in model container [2022-02-15 04:41:39,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 04:41:39" (1/1) ... [2022-02-15 04:41:39,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 04:41:39,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 04:41:39,623 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_clnt.blast.04.i.cil-2.c[65405,65418] [2022-02-15 04:41:39,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 04:41:39,643 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 04:41:39,754 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_clnt.blast.04.i.cil-2.c[65405,65418] [2022-02-15 04:41:39,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 04:41:39,769 INFO L208 MainTranslator]: Completed translation [2022-02-15 04:41:39,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:41:39 WrapperNode [2022-02-15 04:41:39,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 04:41:39,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 04:41:39,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 04:41:39,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 04:41:39,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:41:39" (1/1) ... [2022-02-15 04:41:39,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:41:39" (1/1) ... [2022-02-15 04:41:39,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:41:39" (1/1) ... [2022-02-15 04:41:39,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:41:39" (1/1) ... [2022-02-15 04:41:39,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:41:39" (1/1) ... [2022-02-15 04:41:39,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:41:39" (1/1) ... [2022-02-15 04:41:39,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:41:39" (1/1) ... [2022-02-15 04:41:39,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 04:41:39,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 04:41:39,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 04:41:39,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 04:41:39,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:41:39" (1/1) ... [2022-02-15 04:41:39,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 04:41:39,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 04:41:39,929 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) [2022-02-15 04:41:39,943 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 [2022-02-15 04:41:39,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 04:41:39,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 04:41:39,980 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 04:41:39,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-02-15 04:41:39,980 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-02-15 04:41:39,980 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 04:41:39,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-02-15 04:41:39,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 04:41:39,981 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 04:41:39,981 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 04:41:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 04:41:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 04:41:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 04:41:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 04:41:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 04:41:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 04:41:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 04:41:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 04:41:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 04:41:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 04:41:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-02-15 04:41:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 04:41:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-02-15 04:41:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-02-15 04:41:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 04:41:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 04:41:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 04:41:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 04:41:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 04:41:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 04:41:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 04:41:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 04:41:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 04:41:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 04:41:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 04:41:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 04:41:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 04:41:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 04:41:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 04:41:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 04:41:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 04:41:40,159 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 04:41:40,161 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 04:41:42,486 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 04:41:42,793 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-02-15 04:41:42,793 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-02-15 04:41:42,813 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 04:41:42,821 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 04:41:42,821 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 04:41:42,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 04:41:42 BoogieIcfgContainer [2022-02-15 04:41:42,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 04:41:42,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 04:41:42,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 04:41:42,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 04:41:42,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 04:41:39" (1/3) ... [2022-02-15 04:41:42,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7b34b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 04:41:42, skipping insertion in model container [2022-02-15 04:41:42,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:41:39" (2/3) ... [2022-02-15 04:41:42,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7b34b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 04:41:42, skipping insertion in model container [2022-02-15 04:41:42,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 04:41:42" (3/3) ... [2022-02-15 04:41:42,831 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.04.i.cil-2.c [2022-02-15 04:41:42,835 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 04:41:42,836 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 04:41:42,878 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 04:41:42,884 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 [2022-02-15 04:41:42,884 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 04:41:42,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 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) [2022-02-15 04:41:42,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-15 04:41:42,908 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:41:42,909 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] [2022-02-15 04:41:42,909 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:41:42,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:41:42,914 INFO L85 PathProgramCache]: Analyzing trace with hash -22644822, now seen corresponding path program 1 times [2022-02-15 04:41:42,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:41:42,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762343297] [2022-02-15 04:41:42,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:41:42,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:41:42,979 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:41:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:41:43,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:41:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:41:43,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:41:43,473 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:41:43,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762343297] [2022-02-15 04:41:43,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1762343297] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:41:43,474 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:41:43,474 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:41:43,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147846272] [2022-02-15 04:41:43,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:41:43,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:41:43,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:41:43,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:41:43,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:41:43,503 INFO L87 Difference]: Start difference. First operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 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 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:41:45,530 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 [] [2022-02-15 04:41:45,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:41:45,953 INFO L93 Difference]: Finished difference Result 267 states and 442 transitions. [2022-02-15 04:41:45,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:41:45,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 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 30 [2022-02-15 04:41:45,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:41:45,961 INFO L225 Difference]: With dead ends: 267 [2022-02-15 04:41:45,961 INFO L226 Difference]: Without dead ends: 122 [2022-02-15 04:41:45,963 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 [2022-02-15 04:41:45,969 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:41:45,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:41:45,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-02-15 04:41:46,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-02-15 04:41:46,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 116 states have (on average 1.5) internal successors, (174), 116 states have internal predecessors, (174), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:41:46,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-02-15 04:41:46,019 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-02-15 04:41:46,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:41:46,019 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-02-15 04:41:46,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:41:46,020 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-02-15 04:41:46,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-02-15 04:41:46,022 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:41:46,023 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] [2022-02-15 04:41:46,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 04:41:46,023 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:41:46,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:41:46,023 INFO L85 PathProgramCache]: Analyzing trace with hash 868047042, now seen corresponding path program 1 times [2022-02-15 04:41:46,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:41:46,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699380728] [2022-02-15 04:41:46,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:41:46,042 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:41:46,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:41:46,046 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:41:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:41:46,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:41:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:41:46,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:41:46,289 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:41:46,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699380728] [2022-02-15 04:41:46,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1699380728] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:41:46,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:41:46,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:41:46,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729811945] [2022-02-15 04:41:46,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:41:46,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:41:46,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:41:46,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:41:46,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:41:46,320 INFO L87 Difference]: Start difference. First operand 121 states and 178 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:41:48,332 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 [] [2022-02-15 04:41:48,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:41:48,556 INFO L93 Difference]: Finished difference Result 327 states and 490 transitions. [2022-02-15 04:41:48,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:41:48,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-02-15 04:41:48,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:41:48,558 INFO L225 Difference]: With dead ends: 327 [2022-02-15 04:41:48,559 INFO L226 Difference]: Without dead ends: 222 [2022-02-15 04:41:48,559 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 [2022-02-15 04:41:48,560 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 124 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:41:48,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 319 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-15 04:41:48,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-02-15 04:41:48,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-02-15 04:41:48,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.4838709677419355) internal successors, (322), 217 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:41:48,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 326 transitions. [2022-02-15 04:41:48,584 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 326 transitions. Word has length 44 [2022-02-15 04:41:48,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:41:48,585 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 326 transitions. [2022-02-15 04:41:48,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:41:48,585 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 326 transitions. [2022-02-15 04:41:48,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-15 04:41:48,591 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:41:48,592 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:41:48,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 04:41:48,592 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:41:48,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:41:48,592 INFO L85 PathProgramCache]: Analyzing trace with hash -446115060, now seen corresponding path program 1 times [2022-02-15 04:41:48,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:41:48,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065863835] [2022-02-15 04:41:48,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:41:48,611 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:41:48,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:41:48,615 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:41:48,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:41:48,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:41:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:41:48,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:41:48,844 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:41:48,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065863835] [2022-02-15 04:41:48,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2065863835] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:41:48,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:41:48,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:41:48,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279755757] [2022-02-15 04:41:48,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:41:48,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:41:48,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:41:48,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:41:48,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:41:48,846 INFO L87 Difference]: Start difference. First operand 222 states and 326 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:41:50,863 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 [] [2022-02-15 04:41:51,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:41:51,301 INFO L93 Difference]: Finished difference Result 611 states and 908 transitions. [2022-02-15 04:41:51,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:41:51,301 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-02-15 04:41:51,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:41:51,306 INFO L225 Difference]: With dead ends: 611 [2022-02-15 04:41:51,306 INFO L226 Difference]: Without dead ends: 405 [2022-02-15 04:41:51,310 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 [2022-02-15 04:41:51,315 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 106 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:41:51,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 279 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:41:51,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-02-15 04:41:51,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 270. [2022-02-15 04:41:51,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.5320754716981133) internal successors, (406), 265 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:41:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 410 transitions. [2022-02-15 04:41:51,343 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 410 transitions. Word has length 59 [2022-02-15 04:41:51,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:41:51,344 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 410 transitions. [2022-02-15 04:41:51,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:41:51,344 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 410 transitions. [2022-02-15 04:41:51,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-15 04:41:51,346 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:41:51,346 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:41:51,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 04:41:51,346 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:41:51,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:41:51,346 INFO L85 PathProgramCache]: Analyzing trace with hash -949350737, now seen corresponding path program 1 times [2022-02-15 04:41:51,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:41:51,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299267010] [2022-02-15 04:41:51,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:41:51,360 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:41:51,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:41:51,366 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:41:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:41:51,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:41:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:41:51,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:41:51,553 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:41:51,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299267010] [2022-02-15 04:41:51,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1299267010] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:41:51,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:41:51,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:41:51,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081154255] [2022-02-15 04:41:51,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:41:51,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:41:51,554 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:41:51,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:41:51,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:41:51,554 INFO L87 Difference]: Start difference. First operand 270 states and 410 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:41:53,565 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 [] [2022-02-15 04:41:53,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:41:53,995 INFO L93 Difference]: Finished difference Result 434 states and 663 transitions. [2022-02-15 04:41:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:41:53,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2022-02-15 04:41:53,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:41:53,997 INFO L225 Difference]: With dead ends: 434 [2022-02-15 04:41:53,997 INFO L226 Difference]: Without dead ends: 305 [2022-02-15 04:41:53,998 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 [2022-02-15 04:41:53,998 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 31 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:41:53,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 484 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:41:53,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-02-15 04:41:54,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 288. [2022-02-15 04:41:54,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.540636042402827) internal successors, (436), 283 states have internal predecessors, (436), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:41:54,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 440 transitions. [2022-02-15 04:41:54,017 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 440 transitions. Word has length 60 [2022-02-15 04:41:54,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:41:54,017 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 440 transitions. [2022-02-15 04:41:54,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:41:54,018 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 440 transitions. [2022-02-15 04:41:54,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-15 04:41:54,019 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:41:54,019 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2022-02-15 04:41:54,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 04:41:54,020 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:41:54,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:41:54,020 INFO L85 PathProgramCache]: Analyzing trace with hash -195464169, now seen corresponding path program 2 times [2022-02-15 04:41:54,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:41:54,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1415763557] [2022-02-15 04:41:54,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:42:03,602 WARN L228 SmtUtils]: Spent 9.58s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:42:11,263 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:42:11,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:42:11,270 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:42:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:42:11,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:42:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:42:11,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:42:11,454 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:42:11,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1415763557] [2022-02-15 04:42:11,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1415763557] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:42:11,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:42:11,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:42:11,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71548664] [2022-02-15 04:42:11,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:42:11,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:42:11,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:42:11,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:42:11,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:42:11,456 INFO L87 Difference]: Start difference. First operand 288 states and 440 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:42:13,479 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 [] [2022-02-15 04:42:13,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:42:13,817 INFO L93 Difference]: Finished difference Result 451 states and 691 transitions. [2022-02-15 04:42:13,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:42:13,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-02-15 04:42:13,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:42:13,820 INFO L225 Difference]: With dead ends: 451 [2022-02-15 04:42:13,820 INFO L226 Difference]: Without dead ends: 304 [2022-02-15 04:42:13,820 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 [2022-02-15 04:42:13,821 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 37 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:42:13,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 484 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:42:13,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-02-15 04:42:13,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 288. [2022-02-15 04:42:13,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.5371024734982333) internal successors, (435), 283 states have internal predecessors, (435), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:42:13,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 439 transitions. [2022-02-15 04:42:13,830 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 439 transitions. Word has length 74 [2022-02-15 04:42:13,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:42:13,831 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 439 transitions. [2022-02-15 04:42:13,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:42:13,831 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 439 transitions. [2022-02-15 04:42:13,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-15 04:42:13,831 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:42:13,831 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-15 04:42:13,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 04:42:13,832 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:42:13,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:42:13,832 INFO L85 PathProgramCache]: Analyzing trace with hash -214119627, now seen corresponding path program 1 times [2022-02-15 04:42:13,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:42:13,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950594441] [2022-02-15 04:42:13,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:42:29,908 WARN L228 SmtUtils]: Spent 11.57s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:42:36,677 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:42:36,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:42:36,681 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:42:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:42:36,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:42:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:42:36,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:42:36,824 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:42:36,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [950594441] [2022-02-15 04:42:36,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [950594441] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:42:36,825 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:42:36,825 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:42:36,825 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715127463] [2022-02-15 04:42:36,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:42:36,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:42:36,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:42:36,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:42:36,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:42:36,826 INFO L87 Difference]: Start difference. First operand 288 states and 439 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:42:38,842 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 [] [2022-02-15 04:42:39,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:42:39,155 INFO L93 Difference]: Finished difference Result 451 states and 689 transitions. [2022-02-15 04:42:39,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:42:39,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-02-15 04:42:39,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:42:39,156 INFO L225 Difference]: With dead ends: 451 [2022-02-15 04:42:39,156 INFO L226 Difference]: Without dead ends: 304 [2022-02-15 04:42:39,157 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 [2022-02-15 04:42:39,159 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 35 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:42:39,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 482 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:42:39,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-02-15 04:42:39,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 288. [2022-02-15 04:42:39,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.5335689045936396) internal successors, (434), 283 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:42:39,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 438 transitions. [2022-02-15 04:42:39,176 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 438 transitions. Word has length 74 [2022-02-15 04:42:39,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:42:39,177 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 438 transitions. [2022-02-15 04:42:39,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:42:39,177 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 438 transitions. [2022-02-15 04:42:39,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-15 04:42:39,177 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:42:39,178 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:42:39,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 04:42:39,178 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:42:39,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:42:39,178 INFO L85 PathProgramCache]: Analyzing trace with hash -515982990, now seen corresponding path program 1 times [2022-02-15 04:42:39,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:42:39,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2098195963] [2022-02-15 04:42:39,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:42:49,364 WARN L228 SmtUtils]: Spent 10.18s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:43:01,253 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:43:01,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:43:01,257 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:43:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:43:01,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:43:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:43:01,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:43:01,455 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:43:01,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2098195963] [2022-02-15 04:43:01,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2098195963] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:43:01,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:43:01,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:43:01,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780799517] [2022-02-15 04:43:01,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:43:01,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:43:01,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:43:01,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:43:01,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:43:01,457 INFO L87 Difference]: Start difference. First operand 288 states and 438 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:43:03,467 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 [] [2022-02-15 04:43:03,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:43:03,796 INFO L93 Difference]: Finished difference Result 451 states and 687 transitions. [2022-02-15 04:43:03,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:43:03,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-02-15 04:43:03,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:43:03,798 INFO L225 Difference]: With dead ends: 451 [2022-02-15 04:43:03,798 INFO L226 Difference]: Without dead ends: 304 [2022-02-15 04:43:03,798 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 [2022-02-15 04:43:03,798 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 33 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:43:03,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 480 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:43:03,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-02-15 04:43:03,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 288. [2022-02-15 04:43:03,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.530035335689046) internal successors, (433), 283 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:43:03,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 437 transitions. [2022-02-15 04:43:03,806 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 437 transitions. Word has length 75 [2022-02-15 04:43:03,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:43:03,806 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 437 transitions. [2022-02-15 04:43:03,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:43:03,807 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 437 transitions. [2022-02-15 04:43:03,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-15 04:43:03,807 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:43:03,807 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:43:03,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 04:43:03,808 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:43:03,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:43:03,808 INFO L85 PathProgramCache]: Analyzing trace with hash 470187034, now seen corresponding path program 1 times [2022-02-15 04:43:03,808 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:43:03,808 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659567100] [2022-02-15 04:43:03,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:43:26,186 WARN L228 SmtUtils]: Spent 17.28s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:43:34,087 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:43:34,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:43:34,091 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:43:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:43:34,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:43:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:43:34,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:43:34,225 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:43:34,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659567100] [2022-02-15 04:43:34,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1659567100] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:43:34,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:43:34,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:43:34,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305151976] [2022-02-15 04:43:34,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:43:34,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:43:34,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:43:34,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:43:34,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:43:34,227 INFO L87 Difference]: Start difference. First operand 288 states and 437 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:43:36,239 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 [] [2022-02-15 04:43:36,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:43:36,629 INFO L93 Difference]: Finished difference Result 743 states and 1130 transitions. [2022-02-15 04:43:36,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:43:36,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2022-02-15 04:43:36,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:43:36,631 INFO L225 Difference]: With dead ends: 743 [2022-02-15 04:43:36,631 INFO L226 Difference]: Without dead ends: 471 [2022-02-15 04:43:36,632 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 [2022-02-15 04:43:36,632 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 117 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:43:36,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:43:36,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-02-15 04:43:36,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 316. [2022-02-15 04:43:36,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.5241157556270097) internal successors, (474), 311 states have internal predecessors, (474), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:43:36,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 478 transitions. [2022-02-15 04:43:36,643 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 478 transitions. Word has length 76 [2022-02-15 04:43:36,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:43:36,643 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 478 transitions. [2022-02-15 04:43:36,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:43:36,644 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 478 transitions. [2022-02-15 04:43:36,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-15 04:43:36,653 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:43:36,653 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:43:36,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 04:43:36,653 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:43:36,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:43:36,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1564280905, now seen corresponding path program 1 times [2022-02-15 04:43:36,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:43:36,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725513611] [2022-02-15 04:43:36,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:43:49,080 WARN L228 SmtUtils]: Spent 7.85s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:43:55,308 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:43:55,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:43:55,314 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:43:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:43:55,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:43:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:43:55,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:43:55,451 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:43:55,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725513611] [2022-02-15 04:43:55,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [725513611] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:43:55,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:43:55,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:43:55,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758942412] [2022-02-15 04:43:55,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:43:55,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:43:55,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:43:55,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:43:55,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:43:55,453 INFO L87 Difference]: Start difference. First operand 316 states and 478 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:43:57,468 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 [] [2022-02-15 04:43:57,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:43:57,861 INFO L93 Difference]: Finished difference Result 771 states and 1166 transitions. [2022-02-15 04:43:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:43:57,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-02-15 04:43:57,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:43:57,864 INFO L225 Difference]: With dead ends: 771 [2022-02-15 04:43:57,864 INFO L226 Difference]: Without dead ends: 471 [2022-02-15 04:43:57,864 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 [2022-02-15 04:43:57,865 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 115 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:43:57,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:43:57,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-02-15 04:43:57,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 318. [2022-02-15 04:43:57,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 313 states have (on average 1.511182108626198) internal successors, (473), 313 states have internal predecessors, (473), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:43:57,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 477 transitions. [2022-02-15 04:43:57,876 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 477 transitions. Word has length 77 [2022-02-15 04:43:57,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:43:57,876 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 477 transitions. [2022-02-15 04:43:57,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:43:57,876 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 477 transitions. [2022-02-15 04:43:57,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-15 04:43:57,877 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:43:57,877 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:43:57,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 04:43:57,877 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:43:57,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:43:57,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1274679671, now seen corresponding path program 1 times [2022-02-15 04:43:57,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:43:57,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731774744] [2022-02-15 04:43:57,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:43:57,891 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:43:57,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:43:57,896 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:43:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:43:58,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:43:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:43:58,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:43:58,035 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:43:58,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731774744] [2022-02-15 04:43:58,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1731774744] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:43:58,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:43:58,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:43:58,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173510018] [2022-02-15 04:43:58,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:43:58,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:43:58,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:43:58,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:43:58,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:43:58,037 INFO L87 Difference]: Start difference. First operand 318 states and 477 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:00,048 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 [] [2022-02-15 04:44:00,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:44:00,305 INFO L93 Difference]: Finished difference Result 504 states and 757 transitions. [2022-02-15 04:44:00,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:44:00,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-02-15 04:44:00,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:44:00,307 INFO L225 Difference]: With dead ends: 504 [2022-02-15 04:44:00,307 INFO L226 Difference]: Without dead ends: 342 [2022-02-15 04:44:00,307 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 [2022-02-15 04:44:00,307 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 15 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:44:00,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 359 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-15 04:44:00,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-02-15 04:44:00,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-02-15 04:44:00,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 337 states have (on average 1.4985163204747773) internal successors, (505), 337 states have internal predecessors, (505), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:00,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 509 transitions. [2022-02-15 04:44:00,318 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 509 transitions. Word has length 78 [2022-02-15 04:44:00,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:44:00,318 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 509 transitions. [2022-02-15 04:44:00,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:00,318 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 509 transitions. [2022-02-15 04:44:00,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-15 04:44:00,319 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:44:00,319 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:44:00,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 04:44:00,319 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:44:00,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:44:00,319 INFO L85 PathProgramCache]: Analyzing trace with hash -648548363, now seen corresponding path program 1 times [2022-02-15 04:44:00,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:44:00,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857044625] [2022-02-15 04:44:00,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:44:00,332 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:44:00,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:44:00,338 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:44:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:00,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:44:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:00,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:44:00,463 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:44:00,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857044625] [2022-02-15 04:44:00,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [857044625] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:44:00,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:44:00,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:44:00,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963127326] [2022-02-15 04:44:00,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:44:00,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:44:00,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:44:00,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:44:00,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:44:00,465 INFO L87 Difference]: Start difference. First operand 342 states and 509 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 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) [2022-02-15 04:44:02,473 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 [] [2022-02-15 04:44:02,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:44:02,872 INFO L93 Difference]: Finished difference Result 686 states and 1029 transitions. [2022-02-15 04:44:02,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:44:02,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 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 78 [2022-02-15 04:44:02,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:44:02,875 INFO L225 Difference]: With dead ends: 686 [2022-02-15 04:44:02,875 INFO L226 Difference]: Without dead ends: 500 [2022-02-15 04:44:02,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:44:02,876 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 124 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:44:02,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 477 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:44:02,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-02-15 04:44:02,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2022-02-15 04:44:02,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.498989898989899) internal successors, (742), 495 states have internal predecessors, (742), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:02,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 746 transitions. [2022-02-15 04:44:02,891 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 746 transitions. Word has length 78 [2022-02-15 04:44:02,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:44:02,891 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 746 transitions. [2022-02-15 04:44:02,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 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) [2022-02-15 04:44:02,891 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 746 transitions. [2022-02-15 04:44:02,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-15 04:44:02,892 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:44:02,892 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 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, 1] [2022-02-15 04:44:02,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 04:44:02,893 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:44:02,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:44:02,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1810348115, now seen corresponding path program 1 times [2022-02-15 04:44:02,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:44:02,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294941817] [2022-02-15 04:44:02,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:44:02,918 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:44:02,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:44:02,925 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:44:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:03,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:44:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:03,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:44:03,106 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:44:03,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294941817] [2022-02-15 04:44:03,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1294941817] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:44:03,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:44:03,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:44:03,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265224711] [2022-02-15 04:44:03,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:44:03,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:44:03,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:44:03,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:44:03,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:44:03,107 INFO L87 Difference]: Start difference. First operand 500 states and 746 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:05,115 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 [] [2022-02-15 04:44:05,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:44:05,476 INFO L93 Difference]: Finished difference Result 987 states and 1481 transitions. [2022-02-15 04:44:05,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:44:05,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-02-15 04:44:05,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:44:05,479 INFO L225 Difference]: With dead ends: 987 [2022-02-15 04:44:05,479 INFO L226 Difference]: Without dead ends: 643 [2022-02-15 04:44:05,479 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 [2022-02-15 04:44:05,480 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 125 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:44:05,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 476 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:44:05,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2022-02-15 04:44:05,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2022-02-15 04:44:05,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 638 states have (on average 1.4984326018808778) internal successors, (956), 638 states have internal predecessors, (956), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:05,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 960 transitions. [2022-02-15 04:44:05,496 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 960 transitions. Word has length 98 [2022-02-15 04:44:05,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:44:05,496 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 960 transitions. [2022-02-15 04:44:05,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:05,496 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 960 transitions. [2022-02-15 04:44:05,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-15 04:44:05,497 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:44:05,497 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 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, 1] [2022-02-15 04:44:05,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 04:44:05,498 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:44:05,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:44:05,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1108655063, now seen corresponding path program 1 times [2022-02-15 04:44:05,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:44:05,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692779224] [2022-02-15 04:44:05,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:44:05,540 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:44:05,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:44:05,548 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:44:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:05,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:44:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:05,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:44:05,688 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:44:05,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692779224] [2022-02-15 04:44:05,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1692779224] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:44:05,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:44:05,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:44:05,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580663356] [2022-02-15 04:44:05,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:44:05,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:44:05,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:44:05,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:44:05,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:44:05,689 INFO L87 Difference]: Start difference. First operand 643 states and 960 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:07,703 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 [] [2022-02-15 04:44:08,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:44:08,074 INFO L93 Difference]: Finished difference Result 1289 states and 1933 transitions. [2022-02-15 04:44:08,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:44:08,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-02-15 04:44:08,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:44:08,078 INFO L225 Difference]: With dead ends: 1289 [2022-02-15 04:44:08,078 INFO L226 Difference]: Without dead ends: 802 [2022-02-15 04:44:08,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:44:08,080 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 127 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:44:08,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 477 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:44:08,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2022-02-15 04:44:08,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 802. [2022-02-15 04:44:08,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 797 states have (on average 1.4981179422835633) internal successors, (1194), 797 states have internal predecessors, (1194), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:08,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1198 transitions. [2022-02-15 04:44:08,119 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1198 transitions. Word has length 118 [2022-02-15 04:44:08,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:44:08,119 INFO L470 AbstractCegarLoop]: Abstraction has 802 states and 1198 transitions. [2022-02-15 04:44:08,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:08,119 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1198 transitions. [2022-02-15 04:44:08,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-02-15 04:44:08,120 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:44:08,120 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:44:08,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 04:44:08,121 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:44:08,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:44:08,121 INFO L85 PathProgramCache]: Analyzing trace with hash -802474154, now seen corresponding path program 1 times [2022-02-15 04:44:08,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:44:08,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118439207] [2022-02-15 04:44:08,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:44:29,970 WARN L228 SmtUtils]: Spent 18.63s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:44:39,170 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:44:39,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:44:39,177 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:44:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:39,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:44:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:39,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:44:39,332 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:44:39,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118439207] [2022-02-15 04:44:39,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [118439207] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:44:39,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:44:39,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:44:39,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896628071] [2022-02-15 04:44:39,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:44:39,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:44:39,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:44:39,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:44:39,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:44:39,333 INFO L87 Difference]: Start difference. First operand 802 states and 1198 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) [2022-02-15 04:44:41,342 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 [] [2022-02-15 04:44:41,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:44:41,849 INFO L93 Difference]: Finished difference Result 2046 states and 3044 transitions. [2022-02-15 04:44:41,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:44:41,849 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 140 [2022-02-15 04:44:41,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:44:41,853 INFO L225 Difference]: With dead ends: 2046 [2022-02-15 04:44:41,854 INFO L226 Difference]: Without dead ends: 1260 [2022-02-15 04:44:41,855 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 [2022-02-15 04:44:41,855 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 98 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:44:41,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 574 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 549 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:44:41,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2022-02-15 04:44:41,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 907. [2022-02-15 04:44:41,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 902 states have (on average 1.5066518847006651) internal successors, (1359), 902 states have internal predecessors, (1359), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:41,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1363 transitions. [2022-02-15 04:44:41,884 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1363 transitions. Word has length 140 [2022-02-15 04:44:41,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:44:41,884 INFO L470 AbstractCegarLoop]: Abstraction has 907 states and 1363 transitions. [2022-02-15 04:44:41,884 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) [2022-02-15 04:44:41,884 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1363 transitions. [2022-02-15 04:44:41,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-02-15 04:44:41,886 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:44:41,886 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:44:41,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 04:44:41,886 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:44:41,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:44:41,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1388750376, now seen corresponding path program 1 times [2022-02-15 04:44:41,886 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:44:41,887 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1059580942] [2022-02-15 04:44:41,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:44:58,946 WARN L228 SmtUtils]: Spent 14.03s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:45:08,149 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:08,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:08,155 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:08,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:08,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:08,342 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:08,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1059580942] [2022-02-15 04:45:08,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1059580942] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:08,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:08,342 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:08,342 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985356683] [2022-02-15 04:45:08,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:08,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:08,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:08,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:08,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:08,343 INFO L87 Difference]: Start difference. First operand 907 states and 1363 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:45:10,351 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 [] [2022-02-15 04:45:10,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:10,872 INFO L93 Difference]: Finished difference Result 2103 states and 3152 transitions. [2022-02-15 04:45:10,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:10,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-02-15 04:45:10,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:10,876 INFO L225 Difference]: With dead ends: 2103 [2022-02-15 04:45:10,876 INFO L226 Difference]: Without dead ends: 1212 [2022-02-15 04:45:10,877 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 [2022-02-15 04:45:10,877 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 99 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:10,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 573 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 546 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-02-15 04:45:10,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 927. [2022-02-15 04:45:10,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 922 states have (on average 1.5130151843817787) internal successors, (1395), 922 states have internal predecessors, (1395), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:45:10,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1399 transitions. [2022-02-15 04:45:10,908 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1399 transitions. Word has length 140 [2022-02-15 04:45:10,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:10,909 INFO L470 AbstractCegarLoop]: Abstraction has 927 states and 1399 transitions. [2022-02-15 04:45:10,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:45:10,909 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1399 transitions. [2022-02-15 04:45:10,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-02-15 04:45:10,911 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:10,911 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:45:10,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 04:45:10,911 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:10,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:10,911 INFO L85 PathProgramCache]: Analyzing trace with hash -526820863, now seen corresponding path program 1 times [2022-02-15 04:45:10,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:10,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1906689602] [2022-02-15 04:45:10,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:24,088 WARN L228 SmtUtils]: Spent 10.28s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:45:34,474 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:34,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:34,481 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:34,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:34,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:34,730 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:34,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1906689602] [2022-02-15 04:45:34,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1906689602] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:34,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:34,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:34,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896822939] [2022-02-15 04:45:34,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:34,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:34,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:34,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:34,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:34,731 INFO L87 Difference]: Start difference. First operand 927 states and 1399 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:45:36,739 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 [] [2022-02-15 04:45:37,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:37,235 INFO L93 Difference]: Finished difference Result 2100 states and 3155 transitions. [2022-02-15 04:45:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:37,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 141 [2022-02-15 04:45:37,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:37,239 INFO L225 Difference]: With dead ends: 2100 [2022-02-15 04:45:37,239 INFO L226 Difference]: Without dead ends: 1189 [2022-02-15 04:45:37,240 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 [2022-02-15 04:45:37,241 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 89 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:37,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 559 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 532 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:45:37,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2022-02-15 04:45:37,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 931. [2022-02-15 04:45:37,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 926 states have (on average 1.5107991360691144) internal successors, (1399), 926 states have internal predecessors, (1399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:45:37,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1403 transitions. [2022-02-15 04:45:37,319 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1403 transitions. Word has length 141 [2022-02-15 04:45:37,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:37,319 INFO L470 AbstractCegarLoop]: Abstraction has 931 states and 1403 transitions. [2022-02-15 04:45:37,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:45:37,320 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1403 transitions. [2022-02-15 04:45:37,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-15 04:45:37,321 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:37,322 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:45:37,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 04:45:37,322 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:37,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:37,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1207012016, now seen corresponding path program 2 times [2022-02-15 04:45:37,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:37,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428014959] [2022-02-15 04:45:37,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:45,698 WARN L228 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:45:55,759 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:55,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:55,768 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:55,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:55,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:55,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:55,924 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:55,924 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1428014959] [2022-02-15 04:45:55,924 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1428014959] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:55,924 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:55,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:55,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192541243] [2022-02-15 04:45:55,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:55,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:55,925 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:55,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:55,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:55,925 INFO L87 Difference]: Start difference. First operand 931 states and 1403 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:45:57,933 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 [] [2022-02-15 04:45:58,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:58,342 INFO L93 Difference]: Finished difference Result 2186 states and 3268 transitions. [2022-02-15 04:45:58,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:58,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-02-15 04:45:58,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:58,346 INFO L225 Difference]: With dead ends: 2186 [2022-02-15 04:45:58,346 INFO L226 Difference]: Without dead ends: 1271 [2022-02-15 04:45:58,348 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 [2022-02-15 04:45:58,348 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 110 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:58,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 296 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:58,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2022-02-15 04:45:58,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 931. [2022-02-15 04:45:58,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 926 states have (on average 1.4956803455723542) internal successors, (1385), 926 states have internal predecessors, (1385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:45:58,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1389 transitions. [2022-02-15 04:45:58,385 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1389 transitions. Word has length 154 [2022-02-15 04:45:58,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:58,386 INFO L470 AbstractCegarLoop]: Abstraction has 931 states and 1389 transitions. [2022-02-15 04:45:58,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:45:58,386 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1389 transitions. [2022-02-15 04:45:58,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-15 04:45:58,388 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:58,388 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:45:58,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 04:45:58,388 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:58,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:58,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1157205422, now seen corresponding path program 1 times [2022-02-15 04:45:58,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:58,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957567062] [2022-02-15 04:45:58,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:46:19,254 WARN L228 SmtUtils]: Spent 16.51s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:46:27,882 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:46:27,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:46:27,892 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:46:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:28,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:46:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:28,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:46:28,046 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:46:28,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957567062] [2022-02-15 04:46:28,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1957567062] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:46:28,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:46:28,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:46:28,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459558396] [2022-02-15 04:46:28,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:46:28,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:46:28,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:46:28,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:46:28,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:46:28,047 INFO L87 Difference]: Start difference. First operand 931 states and 1389 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:46:30,055 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 [] [2022-02-15 04:46:30,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:46:30,500 INFO L93 Difference]: Finished difference Result 2100 states and 3123 transitions. [2022-02-15 04:46:30,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:46:30,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-02-15 04:46:30,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:46:30,503 INFO L225 Difference]: With dead ends: 2100 [2022-02-15 04:46:30,503 INFO L226 Difference]: Without dead ends: 1185 [2022-02-15 04:46:30,505 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 [2022-02-15 04:46:30,511 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 96 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:46:30,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 555 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:46:30,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2022-02-15 04:46:30,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 931. [2022-02-15 04:46:30,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 926 states have (on average 1.4913606911447084) internal successors, (1381), 926 states have internal predecessors, (1381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:46:30,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1385 transitions. [2022-02-15 04:46:30,596 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1385 transitions. Word has length 154 [2022-02-15 04:46:30,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:46:30,596 INFO L470 AbstractCegarLoop]: Abstraction has 931 states and 1385 transitions. [2022-02-15 04:46:30,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:46:30,596 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1385 transitions. [2022-02-15 04:46:30,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-02-15 04:46:30,598 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:46:30,598 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:46:30,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 04:46:30,598 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:46:30,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:46:30,598 INFO L85 PathProgramCache]: Analyzing trace with hash 56826171, now seen corresponding path program 1 times [2022-02-15 04:46:30,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:46:30,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349476144] [2022-02-15 04:46:30,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:46:44,898 WARN L228 SmtUtils]: Spent 13.96s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:46:58,477 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:46:58,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:46:58,486 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:46:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:58,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:46:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:46:58,697 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:46:58,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349476144] [2022-02-15 04:46:58,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1349476144] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:46:58,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:46:58,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:46:58,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691781199] [2022-02-15 04:46:58,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:46:58,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:46:58,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:46:58,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:46:58,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:46:58,698 INFO L87 Difference]: Start difference. First operand 931 states and 1385 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:00,706 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 [] [2022-02-15 04:47:01,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:47:01,142 INFO L93 Difference]: Finished difference Result 2187 states and 3233 transitions. [2022-02-15 04:47:01,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:47:01,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-02-15 04:47:01,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:47:01,147 INFO L225 Difference]: With dead ends: 2187 [2022-02-15 04:47:01,147 INFO L226 Difference]: Without dead ends: 1272 [2022-02-15 04:47:01,149 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 [2022-02-15 04:47:01,149 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 116 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:47:01,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 300 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:47:01,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2022-02-15 04:47:01,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 931. [2022-02-15 04:47:01,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 926 states have (on average 1.4762419006479481) internal successors, (1367), 926 states have internal predecessors, (1367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:01,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1371 transitions. [2022-02-15 04:47:01,193 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1371 transitions. Word has length 155 [2022-02-15 04:47:01,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:47:01,193 INFO L470 AbstractCegarLoop]: Abstraction has 931 states and 1371 transitions. [2022-02-15 04:47:01,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:01,193 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1371 transitions. [2022-02-15 04:47:01,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-02-15 04:47:01,195 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:47:01,195 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:47:01,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 04:47:01,196 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:47:01,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:47:01,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1601423858, now seen corresponding path program 1 times [2022-02-15 04:47:01,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:47:01,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2095301887] [2022-02-15 04:47:01,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:47:11,820 WARN L228 SmtUtils]: Spent 7.31s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:47:21,734 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:47:21,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:47:21,744 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:47:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:47:21,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:47:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:47:21,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:47:21,915 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:47:21,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2095301887] [2022-02-15 04:47:21,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2095301887] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:47:21,915 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:47:21,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:47:21,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373896767] [2022-02-15 04:47:21,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:47:21,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:47:21,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:47:21,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:47:21,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:47:21,916 INFO L87 Difference]: Start difference. First operand 931 states and 1371 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:23,925 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 [] [2022-02-15 04:47:24,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:47:24,306 INFO L93 Difference]: Finished difference Result 2187 states and 3205 transitions. [2022-02-15 04:47:24,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:47:24,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 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 158 [2022-02-15 04:47:24,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:47:24,310 INFO L225 Difference]: With dead ends: 2187 [2022-02-15 04:47:24,310 INFO L226 Difference]: Without dead ends: 1272 [2022-02-15 04:47:24,312 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 [2022-02-15 04:47:24,315 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 108 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:47:24,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:47:24,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2022-02-15 04:47:24,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 931. [2022-02-15 04:47:24,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 926 states have (on average 1.461123110151188) internal successors, (1353), 926 states have internal predecessors, (1353), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:24,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1357 transitions. [2022-02-15 04:47:24,364 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1357 transitions. Word has length 158 [2022-02-15 04:47:24,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:47:24,365 INFO L470 AbstractCegarLoop]: Abstraction has 931 states and 1357 transitions. [2022-02-15 04:47:24,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:24,365 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1357 transitions. [2022-02-15 04:47:24,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-02-15 04:47:24,367 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:47:24,367 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 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] [2022-02-15 04:47:24,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 04:47:24,368 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:47:24,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:47:24,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1919896937, now seen corresponding path program 1 times [2022-02-15 04:47:24,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:47:24,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874789725] [2022-02-15 04:47:24,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:47:40,443 WARN L228 SmtUtils]: Spent 12.79s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:47:51,504 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:47:51,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:47:51,513 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:47:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:47:51,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:47:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:47:51,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:47:51,647 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:47:51,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874789725] [2022-02-15 04:47:51,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1874789725] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:47:51,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:47:51,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:47:51,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204250047] [2022-02-15 04:47:51,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:47:51,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:47:51,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:47:51,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:47:51,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:47:51,648 INFO L87 Difference]: Start difference. First operand 931 states and 1357 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) [2022-02-15 04:47:53,656 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 [] [2022-02-15 04:47:54,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:47:54,112 INFO L93 Difference]: Finished difference Result 2048 states and 2994 transitions. [2022-02-15 04:47:54,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:47:54,112 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 159 [2022-02-15 04:47:54,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:47:54,115 INFO L225 Difference]: With dead ends: 2048 [2022-02-15 04:47:54,115 INFO L226 Difference]: Without dead ends: 1133 [2022-02-15 04:47:54,117 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 [2022-02-15 04:47:54,117 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 75 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:47:54,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 531 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:47:54,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2022-02-15 04:47:54,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 931. [2022-02-15 04:47:54,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 926 states have (on average 1.456803455723542) internal successors, (1349), 926 states have internal predecessors, (1349), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:54,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1353 transitions. [2022-02-15 04:47:54,190 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1353 transitions. Word has length 159 [2022-02-15 04:47:54,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:47:54,190 INFO L470 AbstractCegarLoop]: Abstraction has 931 states and 1353 transitions. [2022-02-15 04:47:54,190 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) [2022-02-15 04:47:54,190 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1353 transitions. [2022-02-15 04:47:54,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-02-15 04:47:54,192 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:47:54,192 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:47:54,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 04:47:54,192 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:47:54,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:47:54,192 INFO L85 PathProgramCache]: Analyzing trace with hash 621836731, now seen corresponding path program 1 times [2022-02-15 04:47:54,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:47:54,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758254512] [2022-02-15 04:47:54,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:48:10,893 WARN L228 SmtUtils]: Spent 12.93s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:48:19,321 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:48:19,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:48:19,331 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:48:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:48:19,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:48:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:48:19,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:48:19,482 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:48:19,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758254512] [2022-02-15 04:48:19,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1758254512] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:48:19,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:48:19,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:48:19,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514274544] [2022-02-15 04:48:19,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:48:19,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:48:19,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:48:19,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:48:19,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:48:19,483 INFO L87 Difference]: Start difference. First operand 931 states and 1353 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:48:21,492 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 [] [2022-02-15 04:48:21,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:48:21,912 INFO L93 Difference]: Finished difference Result 2077 states and 3002 transitions. [2022-02-15 04:48:21,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:48:21,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-02-15 04:48:21,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:48:21,916 INFO L225 Difference]: With dead ends: 2077 [2022-02-15 04:48:21,916 INFO L226 Difference]: Without dead ends: 1162 [2022-02-15 04:48:21,918 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 [2022-02-15 04:48:21,919 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 40 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:48:21,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 506 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 388 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:48:21,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2022-02-15 04:48:21,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1041. [2022-02-15 04:48:21,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1036 states have (on average 1.4613899613899615) internal successors, (1514), 1036 states have internal predecessors, (1514), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:48:21,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1518 transitions. [2022-02-15 04:48:21,970 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1518 transitions. Word has length 162 [2022-02-15 04:48:21,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:48:21,971 INFO L470 AbstractCegarLoop]: Abstraction has 1041 states and 1518 transitions. [2022-02-15 04:48:21,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:48:21,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1518 transitions. [2022-02-15 04:48:21,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-02-15 04:48:21,974 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:48:21,974 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:48:21,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 04:48:21,974 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:48:21,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:48:21,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1645539649, now seen corresponding path program 1 times [2022-02-15 04:48:21,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:48:21,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687445796] [2022-02-15 04:48:21,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:48:36,103 WARN L228 SmtUtils]: Spent 9.56s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:48:45,372 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:48:45,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:48:45,381 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:48:45,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:48:45,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:48:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:48:45,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:48:45,603 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:48:45,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687445796] [2022-02-15 04:48:45,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1687445796] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:48:45,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:48:45,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 04:48:45,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856444502] [2022-02-15 04:48:45,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:48:45,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 04:48:45,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:48:45,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 04:48:45,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 04:48:45,604 INFO L87 Difference]: Start difference. First operand 1041 states and 1518 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 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) [2022-02-15 04:48:47,617 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 [] [2022-02-15 04:48:48,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:48:48,092 INFO L93 Difference]: Finished difference Result 2112 states and 3072 transitions. [2022-02-15 04:48:48,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 04:48:48,092 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 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 176 [2022-02-15 04:48:48,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:48:48,095 INFO L225 Difference]: With dead ends: 2112 [2022-02-15 04:48:48,095 INFO L226 Difference]: Without dead ends: 1087 [2022-02-15 04:48:48,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:48:48,100 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 110 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:48:48,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 401 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:48:48,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2022-02-15 04:48:48,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1041. [2022-02-15 04:48:48,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1036 states have (on average 1.446911196911197) internal successors, (1499), 1036 states have internal predecessors, (1499), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:48:48,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1503 transitions. [2022-02-15 04:48:48,153 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1503 transitions. Word has length 176 [2022-02-15 04:48:48,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:48:48,154 INFO L470 AbstractCegarLoop]: Abstraction has 1041 states and 1503 transitions. [2022-02-15 04:48:48,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 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) [2022-02-15 04:48:48,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1503 transitions. [2022-02-15 04:48:48,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-15 04:48:48,156 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:48:48,156 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:48:48,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 04:48:48,156 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:48:48,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:48:48,156 INFO L85 PathProgramCache]: Analyzing trace with hash -38022008, now seen corresponding path program 1 times [2022-02-15 04:48:48,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:48:48,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843300313] [2022-02-15 04:48:48,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:49:03,177 WARN L228 SmtUtils]: Spent 10.68s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:49:11,813 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:49:11,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:49:11,824 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:49:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:49:12,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:49:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:49:12,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:49:12,005 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:49:12,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843300313] [2022-02-15 04:49:12,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [843300313] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:49:12,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:49:12,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 04:49:12,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701256063] [2022-02-15 04:49:12,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:49:12,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 04:49:12,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:49:12,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 04:49:12,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 04:49:12,006 INFO L87 Difference]: Start difference. First operand 1041 states and 1503 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 6 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) [2022-02-15 04:49:14,015 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 [] [2022-02-15 04:49:14,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:49:14,467 INFO L93 Difference]: Finished difference Result 2143 states and 3079 transitions. [2022-02-15 04:49:14,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 04:49:14,467 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 6 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 181 [2022-02-15 04:49:14,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:49:14,470 INFO L225 Difference]: With dead ends: 2143 [2022-02-15 04:49:14,470 INFO L226 Difference]: Without dead ends: 1118 [2022-02-15 04:49:14,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:49:14,472 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 106 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:49:14,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 417 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 520 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:49:14,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-02-15 04:49:14,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1041. [2022-02-15 04:49:14,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1036 states have (on average 1.4324324324324325) internal successors, (1484), 1036 states have internal predecessors, (1484), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:49:14,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1488 transitions. [2022-02-15 04:49:14,526 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1488 transitions. Word has length 181 [2022-02-15 04:49:14,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:49:14,526 INFO L470 AbstractCegarLoop]: Abstraction has 1041 states and 1488 transitions. [2022-02-15 04:49:14,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 6 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) [2022-02-15 04:49:14,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1488 transitions. [2022-02-15 04:49:14,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-15 04:49:14,528 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:49:14,528 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:49:14,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 04:49:14,528 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:49:14,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:49:14,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1322734401, now seen corresponding path program 1 times [2022-02-15 04:49:14,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:49:14,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418771139] [2022-02-15 04:49:14,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:49:29,780 WARN L228 SmtUtils]: Spent 11.03s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:49:38,287 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:49:38,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:49:38,316 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:49:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:49:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:49:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:49:38,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:49:38,480 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:49:38,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418771139] [2022-02-15 04:49:38,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [418771139] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:49:38,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:49:38,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:49:38,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879156034] [2022-02-15 04:49:38,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:49:38,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:49:38,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:49:38,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:49:38,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:49:38,482 INFO L87 Difference]: Start difference. First operand 1041 states and 1488 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) [2022-02-15 04:49:40,489 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 [] [2022-02-15 04:49:40,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:49:40,999 INFO L93 Difference]: Finished difference Result 2449 states and 3508 transitions. [2022-02-15 04:49:40,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:49:41,025 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 182 [2022-02-15 04:49:41,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:49:41,029 INFO L225 Difference]: With dead ends: 2449 [2022-02-15 04:49:41,029 INFO L226 Difference]: Without dead ends: 1424 [2022-02-15 04:49:41,031 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 [2022-02-15 04:49:41,031 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 82 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:49:41,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 546 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 501 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:49:41,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2022-02-15 04:49:41,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1041. [2022-02-15 04:49:41,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1036 states have (on average 1.4324324324324325) internal successors, (1484), 1036 states have internal predecessors, (1484), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:49:41,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1488 transitions. [2022-02-15 04:49:41,090 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1488 transitions. Word has length 182 [2022-02-15 04:49:41,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:49:41,091 INFO L470 AbstractCegarLoop]: Abstraction has 1041 states and 1488 transitions. [2022-02-15 04:49:41,091 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) [2022-02-15 04:49:41,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1488 transitions. [2022-02-15 04:49:41,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-02-15 04:49:41,092 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:49:41,092 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:49:41,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 04:49:41,093 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:49:41,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:49:41,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1572475012, now seen corresponding path program 1 times [2022-02-15 04:49:41,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:49:41,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259810755] [2022-02-15 04:49:41,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:49:56,252 WARN L228 SmtUtils]: Spent 10.91s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:50:07,378 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:50:07,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:50:07,390 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:50:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:50:07,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:50:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:50:07,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:50:07,626 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:50:07,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259810755] [2022-02-15 04:50:07,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [259810755] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:50:07,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:50:07,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:50:07,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223245615] [2022-02-15 04:50:07,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:50:07,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:50:07,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:50:07,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:50:07,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:50:07,628 INFO L87 Difference]: Start difference. First operand 1041 states and 1488 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) [2022-02-15 04:50:09,636 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 [] [2022-02-15 04:50:10,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:50:10,166 INFO L93 Difference]: Finished difference Result 2422 states and 3469 transitions. [2022-02-15 04:50:10,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:50:10,166 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 183 [2022-02-15 04:50:10,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:50:10,170 INFO L225 Difference]: With dead ends: 2422 [2022-02-15 04:50:10,170 INFO L226 Difference]: Without dead ends: 1397 [2022-02-15 04:50:10,172 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 [2022-02-15 04:50:10,172 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 72 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:50:10,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 532 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:50:10,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1397 states. [2022-02-15 04:50:10,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1397 to 1146. [2022-02-15 04:50:10,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1141 states have (on average 1.4233128834355828) internal successors, (1624), 1141 states have internal predecessors, (1624), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:50:10,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1628 transitions. [2022-02-15 04:50:10,272 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1628 transitions. Word has length 183 [2022-02-15 04:50:10,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:50:10,272 INFO L470 AbstractCegarLoop]: Abstraction has 1146 states and 1628 transitions. [2022-02-15 04:50:10,272 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) [2022-02-15 04:50:10,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1628 transitions. [2022-02-15 04:50:10,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-02-15 04:50:10,274 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:50:10,274 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:50:10,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 04:50:10,274 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:50:10,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:50:10,274 INFO L85 PathProgramCache]: Analyzing trace with hash 204249076, now seen corresponding path program 1 times [2022-02-15 04:50:10,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:50:10,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389699801] [2022-02-15 04:50:10,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:50:24,654 WARN L228 SmtUtils]: Spent 9.78s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:50:35,106 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:50:35,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:50:35,118 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:50:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:50:35,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:50:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:50:35,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:50:35,279 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:50:35,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389699801] [2022-02-15 04:50:35,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [389699801] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:50:35,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:50:35,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:50:35,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287222157] [2022-02-15 04:50:35,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:50:35,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:50:35,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:50:35,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:50:35,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:50:35,281 INFO L87 Difference]: Start difference. First operand 1146 states and 1628 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) [2022-02-15 04:50:37,298 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 [] [2022-02-15 04:50:37,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:50:37,647 INFO L93 Difference]: Finished difference Result 2326 states and 3300 transitions. [2022-02-15 04:50:37,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:50:37,647 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 185 [2022-02-15 04:50:37,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:50:37,652 INFO L225 Difference]: With dead ends: 2326 [2022-02-15 04:50:37,652 INFO L226 Difference]: Without dead ends: 1196 [2022-02-15 04:50:37,654 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 [2022-02-15 04:50:37,655 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 23 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:50:37,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 474 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 347 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:50:37,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2022-02-15 04:50:37,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1158. [2022-02-15 04:50:37,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 1153 states have (on average 1.4258456201214225) internal successors, (1644), 1153 states have internal predecessors, (1644), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:50:37,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1648 transitions. [2022-02-15 04:50:37,723 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1648 transitions. Word has length 185 [2022-02-15 04:50:37,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:50:37,723 INFO L470 AbstractCegarLoop]: Abstraction has 1158 states and 1648 transitions. [2022-02-15 04:50:37,723 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) [2022-02-15 04:50:37,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1648 transitions. [2022-02-15 04:50:37,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-15 04:50:37,739 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:50:37,739 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:50:37,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 04:50:37,740 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:50:37,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:50:37,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1408894034, now seen corresponding path program 1 times [2022-02-15 04:50:37,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:50:37,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805048876] [2022-02-15 04:50:37,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:50:55,021 WARN L228 SmtUtils]: Spent 11.54s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:51:03,701 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:51:03,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:51:03,714 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:51:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:51:03,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:51:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:51:03,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:51:03,904 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:51:03,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805048876] [2022-02-15 04:51:03,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1805048876] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:51:03,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:51:03,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:51:03,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283561906] [2022-02-15 04:51:03,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:51:03,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:51:03,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:51:03,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:51:03,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:51:03,905 INFO L87 Difference]: Start difference. First operand 1158 states and 1648 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) [2022-02-15 04:51:05,917 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 [] [2022-02-15 04:51:06,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:51:06,430 INFO L93 Difference]: Finished difference Result 2534 states and 3604 transitions. [2022-02-15 04:51:06,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:51:06,431 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 193 [2022-02-15 04:51:06,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:51:06,436 INFO L225 Difference]: With dead ends: 2534 [2022-02-15 04:51:06,436 INFO L226 Difference]: Without dead ends: 1603 [2022-02-15 04:51:06,438 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 [2022-02-15 04:51:06,438 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 110 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:51:06,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 492 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:51:06,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2022-02-15 04:51:06,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1238. [2022-02-15 04:51:06,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1233 states have (on average 1.3990267639902676) internal successors, (1725), 1233 states have internal predecessors, (1725), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:51:06,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1729 transitions. [2022-02-15 04:51:06,533 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1729 transitions. Word has length 193 [2022-02-15 04:51:06,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:51:06,533 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 1729 transitions. [2022-02-15 04:51:06,533 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) [2022-02-15 04:51:06,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1729 transitions. [2022-02-15 04:51:06,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-02-15 04:51:06,534 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:51:06,535 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 5, 5, 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] [2022-02-15 04:51:06,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 04:51:06,535 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:51:06,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:51:06,536 INFO L85 PathProgramCache]: Analyzing trace with hash 164938377, now seen corresponding path program 1 times [2022-02-15 04:51:06,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:51:06,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1534764357] [2022-02-15 04:51:06,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:51:21,494 WARN L228 SmtUtils]: Spent 9.97s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:51:31,012 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:51:31,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:51:31,025 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:51:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:51:31,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:51:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:51:31,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:51:31,178 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:51:31,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1534764357] [2022-02-15 04:51:31,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1534764357] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:51:31,178 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:51:31,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:51:31,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592965804] [2022-02-15 04:51:31,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:51:31,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:51:31,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:51:31,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:51:31,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:51:31,179 INFO L87 Difference]: Start difference. First operand 1238 states and 1729 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:51:33,187 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 [] [2022-02-15 04:51:33,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:51:33,542 INFO L93 Difference]: Finished difference Result 2259 states and 3147 transitions. [2022-02-15 04:51:33,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:51:33,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 194 [2022-02-15 04:51:33,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:51:33,549 INFO L225 Difference]: With dead ends: 2259 [2022-02-15 04:51:33,549 INFO L226 Difference]: Without dead ends: 1264 [2022-02-15 04:51:33,551 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 [2022-02-15 04:51:33,551 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 26 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:51:33,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 467 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 335 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:51:33,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2022-02-15 04:51:33,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1238. [2022-02-15 04:51:33,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1233 states have (on average 1.3957826439578265) internal successors, (1721), 1233 states have internal predecessors, (1721), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:51:33,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1725 transitions. [2022-02-15 04:51:33,654 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1725 transitions. Word has length 194 [2022-02-15 04:51:33,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:51:33,654 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 1725 transitions. [2022-02-15 04:51:33,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:51:33,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1725 transitions. [2022-02-15 04:51:33,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-02-15 04:51:33,656 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:51:33,656 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:51:33,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 04:51:33,656 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:51:33,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:51:33,657 INFO L85 PathProgramCache]: Analyzing trace with hash -723620623, now seen corresponding path program 1 times [2022-02-15 04:51:33,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:51:33,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981841431] [2022-02-15 04:51:33,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:51:52,976 WARN L228 SmtUtils]: Spent 14.08s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:52:03,667 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:52:03,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:52:03,691 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:52:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:52:03,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:52:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:52:03,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:52:03,852 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:52:03,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1981841431] [2022-02-15 04:52:03,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1981841431] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:52:03,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:52:03,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:52:03,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834558785] [2022-02-15 04:52:03,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:52:03,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:52:03,853 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:52:03,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:52:03,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:52:03,853 INFO L87 Difference]: Start difference. First operand 1238 states and 1725 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) [2022-02-15 04:52:05,862 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 [] [2022-02-15 04:52:06,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:52:06,386 INFO L93 Difference]: Finished difference Result 2905 states and 4054 transitions. [2022-02-15 04:52:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:52:06,386 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 207 [2022-02-15 04:52:06,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:52:06,390 INFO L225 Difference]: With dead ends: 2905 [2022-02-15 04:52:06,390 INFO L226 Difference]: Without dead ends: 1683 [2022-02-15 04:52:06,392 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 [2022-02-15 04:52:06,392 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 107 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:52:06,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 282 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:52:06,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2022-02-15 04:52:06,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1238. [2022-02-15 04:52:06,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1233 states have (on average 1.391727493917275) internal successors, (1716), 1233 states have internal predecessors, (1716), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:52:06,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1720 transitions. [2022-02-15 04:52:06,478 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1720 transitions. Word has length 207 [2022-02-15 04:52:06,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:52:06,478 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 1720 transitions. [2022-02-15 04:52:06,478 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) [2022-02-15 04:52:06,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1720 transitions. [2022-02-15 04:52:06,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-02-15 04:52:06,480 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:52:06,480 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:52:06,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 04:52:06,480 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:52:06,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:52:06,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1734988588, now seen corresponding path program 1 times [2022-02-15 04:52:06,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:52:06,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477192926] [2022-02-15 04:52:06,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:52:19,356 WARN L228 SmtUtils]: Spent 7.90s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:52:28,268 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:52:28,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:52:28,285 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:52:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:52:28,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:52:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:52:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:52:28,438 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:52:28,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [477192926] [2022-02-15 04:52:28,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [477192926] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:52:28,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:52:28,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:52:28,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435515646] [2022-02-15 04:52:28,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:52:28,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:52:28,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:52:28,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:52:28,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:52:28,439 INFO L87 Difference]: Start difference. First operand 1238 states and 1720 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) [2022-02-15 04:52:30,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:52:30,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:52:30,962 INFO L93 Difference]: Finished difference Result 2821 states and 3933 transitions. [2022-02-15 04:52:30,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:52:30,962 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 208 [2022-02-15 04:52:30,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:52:30,992 INFO L225 Difference]: With dead ends: 2821 [2022-02-15 04:52:30,992 INFO L226 Difference]: Without dead ends: 1599 [2022-02-15 04:52:30,994 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 [2022-02-15 04:52:30,994 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 71 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:52:30,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 528 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:52:30,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2022-02-15 04:52:31,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1243. [2022-02-15 04:52:31,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1238 states have (on average 1.390145395799677) internal successors, (1721), 1238 states have internal predecessors, (1721), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:52:31,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1725 transitions. [2022-02-15 04:52:31,114 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1725 transitions. Word has length 208 [2022-02-15 04:52:31,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:52:31,114 INFO L470 AbstractCegarLoop]: Abstraction has 1243 states and 1725 transitions. [2022-02-15 04:52:31,114 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) [2022-02-15 04:52:31,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1725 transitions. [2022-02-15 04:52:31,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-02-15 04:52:31,115 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:52:31,116 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:52:31,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 04:52:31,116 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:52:31,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:52:31,116 INFO L85 PathProgramCache]: Analyzing trace with hash -518834862, now seen corresponding path program 1 times [2022-02-15 04:52:31,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:52:31,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473370663] [2022-02-15 04:52:31,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:52:42,797 WARN L228 SmtUtils]: Spent 6.90s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:52:52,085 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:52:52,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:52:52,103 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:52:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:52:52,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:52:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:52:52,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:52:52,264 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:52:52,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473370663] [2022-02-15 04:52:52,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [473370663] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:52:52,264 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:52:52,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:52:52,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718876136] [2022-02-15 04:52:52,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:52:52,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:52:52,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:52:52,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:52:52,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:52:52,265 INFO L87 Difference]: Start difference. First operand 1243 states and 1725 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) [2022-02-15 04:52:54,274 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 [] [2022-02-15 04:52:54,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:52:54,807 INFO L93 Difference]: Finished difference Result 2826 states and 3938 transitions. [2022-02-15 04:52:54,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:52:54,807 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 208 [2022-02-15 04:52:54,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:52:54,809 INFO L225 Difference]: With dead ends: 2826 [2022-02-15 04:52:54,809 INFO L226 Difference]: Without dead ends: 1599 [2022-02-15 04:52:54,811 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 [2022-02-15 04:52:54,811 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 71 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:52:54,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 530 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:52:54,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2022-02-15 04:52:54,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1238. [2022-02-15 04:52:54,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1233 states have (on average 1.391727493917275) internal successors, (1716), 1233 states have internal predecessors, (1716), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:52:54,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1720 transitions. [2022-02-15 04:52:54,901 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1720 transitions. Word has length 208 [2022-02-15 04:52:54,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:52:54,901 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 1720 transitions. [2022-02-15 04:52:54,901 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) [2022-02-15 04:52:54,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1720 transitions. [2022-02-15 04:52:54,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-02-15 04:52:54,903 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:52:54,903 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:52:54,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 04:52:54,903 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:52:54,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:52:54,903 INFO L85 PathProgramCache]: Analyzing trace with hash 337822339, now seen corresponding path program 1 times [2022-02-15 04:52:54,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:52:54,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536732079] [2022-02-15 04:52:54,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:53:12,831 WARN L228 SmtUtils]: Spent 12.60s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:53:20,903 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:53:20,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:53:20,919 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:53:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:21,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:53:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:21,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:53:21,128 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:53:21,128 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536732079] [2022-02-15 04:53:21,129 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1536732079] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:53:21,129 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:53:21,129 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:53:21,129 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324425983] [2022-02-15 04:53:21,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:53:21,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:53:21,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:53:21,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:53:21,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:53:21,129 INFO L87 Difference]: Start difference. First operand 1238 states and 1720 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:23,138 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 [] [2022-02-15 04:53:23,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:53:23,675 INFO L93 Difference]: Finished difference Result 2910 states and 4039 transitions. [2022-02-15 04:53:23,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:53:23,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 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 214 [2022-02-15 04:53:23,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:53:23,678 INFO L225 Difference]: With dead ends: 2910 [2022-02-15 04:53:23,678 INFO L226 Difference]: Without dead ends: 1688 [2022-02-15 04:53:23,680 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 [2022-02-15 04:53:23,680 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 95 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:53:23,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 282 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:53:23,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2022-02-15 04:53:23,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1403. [2022-02-15 04:53:23,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1398 states have (on average 1.3991416309012876) internal successors, (1956), 1398 states have internal predecessors, (1956), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:23,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1960 transitions. [2022-02-15 04:53:23,893 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1960 transitions. Word has length 214 [2022-02-15 04:53:23,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:53:23,894 INFO L470 AbstractCegarLoop]: Abstraction has 1403 states and 1960 transitions. [2022-02-15 04:53:23,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:23,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1960 transitions. [2022-02-15 04:53:23,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-02-15 04:53:23,895 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:53:23,896 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:53:23,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 04:53:23,896 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:53:23,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:53:23,896 INFO L85 PathProgramCache]: Analyzing trace with hash 331115682, now seen corresponding path program 1 times [2022-02-15 04:53:23,896 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:53:23,896 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1986843975] [2022-02-15 04:53:23,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:53:40,742 WARN L228 SmtUtils]: Spent 11.69s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:53:50,393 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:53:50,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:53:50,411 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:53:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:50,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:53:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:50,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:53:50,583 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:53:50,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1986843975] [2022-02-15 04:53:50,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1986843975] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:53:50,584 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:53:50,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:53:50,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072407764] [2022-02-15 04:53:50,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:53:50,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:53:50,584 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:53:50,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:53:50,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:53:50,584 INFO L87 Difference]: Start difference. First operand 1403 states and 1960 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:52,595 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 [] [2022-02-15 04:53:53,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:53:53,180 INFO L93 Difference]: Finished difference Result 3280 states and 4599 transitions. [2022-02-15 04:53:53,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:53:53,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 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 214 [2022-02-15 04:53:53,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:53:53,183 INFO L225 Difference]: With dead ends: 3280 [2022-02-15 04:53:53,183 INFO L226 Difference]: Without dead ends: 1893 [2022-02-15 04:53:53,185 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 [2022-02-15 04:53:53,186 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 93 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:53:53,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 284 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:53:53,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2022-02-15 04:53:53,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1618. [2022-02-15 04:53:53,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1618 states, 1613 states have (on average 1.4234345939243644) internal successors, (2296), 1613 states have internal predecessors, (2296), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:53,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1618 states to 1618 states and 2300 transitions. [2022-02-15 04:53:53,345 INFO L78 Accepts]: Start accepts. Automaton has 1618 states and 2300 transitions. Word has length 214 [2022-02-15 04:53:53,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:53:53,345 INFO L470 AbstractCegarLoop]: Abstraction has 1618 states and 2300 transitions. [2022-02-15 04:53:53,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:53,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states and 2300 transitions. [2022-02-15 04:53:53,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-02-15 04:53:53,347 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:53:53,347 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:53:53,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 04:53:53,348 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:53:53,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:53:53,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2034229254, now seen corresponding path program 1 times [2022-02-15 04:53:53,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:53:53,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1483002212] [2022-02-15 04:53:53,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:54:05,555 WARN L228 SmtUtils]: Spent 7.24s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:54:13,888 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:54:13,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:54:13,907 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:54:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:14,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:54:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:14,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:54:14,062 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:54:14,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1483002212] [2022-02-15 04:54:14,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1483002212] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:54:14,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:54:14,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:54:14,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241685781] [2022-02-15 04:54:14,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:54:14,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:54:14,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:54:14,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:54:14,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:54:14,063 INFO L87 Difference]: Start difference. First operand 1618 states and 2300 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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) [2022-02-15 04:54:16,071 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 [] [2022-02-15 04:54:16,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:54:16,593 INFO L93 Difference]: Finished difference Result 3411 states and 4828 transitions. [2022-02-15 04:54:16,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:54:16,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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 215 [2022-02-15 04:54:16,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:54:16,597 INFO L225 Difference]: With dead ends: 3411 [2022-02-15 04:54:16,597 INFO L226 Difference]: Without dead ends: 1809 [2022-02-15 04:54:16,599 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 [2022-02-15 04:54:16,599 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 25 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:54:16,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 482 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:54:16,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2022-02-15 04:54:16,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1748. [2022-02-15 04:54:16,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 1743 states have (on average 1.4176706827309238) internal successors, (2471), 1743 states have internal predecessors, (2471), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:16,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2475 transitions. [2022-02-15 04:54:16,780 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2475 transitions. Word has length 215 [2022-02-15 04:54:16,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:54:16,780 INFO L470 AbstractCegarLoop]: Abstraction has 1748 states and 2475 transitions. [2022-02-15 04:54:16,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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) [2022-02-15 04:54:16,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2475 transitions. [2022-02-15 04:54:16,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-02-15 04:54:16,782 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:54:16,783 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:54:16,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 04:54:16,783 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:54:16,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:54:16,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1232717268, now seen corresponding path program 1 times [2022-02-15 04:54:16,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:54:16,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672956964] [2022-02-15 04:54:16,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:54:36,139 WARN L228 SmtUtils]: Spent 13.71s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:54:45,514 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:54:45,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:54:45,532 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:54:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:45,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:54:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:45,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:54:45,733 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:54:45,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672956964] [2022-02-15 04:54:45,733 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [672956964] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:54:45,733 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:54:45,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:54:45,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694474409] [2022-02-15 04:54:45,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:54:45,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:54:45,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:54:45,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:54:45,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:54:45,735 INFO L87 Difference]: Start difference. First operand 1748 states and 2475 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) [2022-02-15 04:54:47,752 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 [] [2022-02-15 04:54:48,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:54:48,385 INFO L93 Difference]: Finished difference Result 3144 states and 4445 transitions. [2022-02-15 04:54:48,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:54:48,386 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 216 [2022-02-15 04:54:48,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:54:48,388 INFO L225 Difference]: With dead ends: 3144 [2022-02-15 04:54:48,388 INFO L226 Difference]: Without dead ends: 1741 [2022-02-15 04:54:48,391 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 [2022-02-15 04:54:48,392 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 107 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:54:48,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 482 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:54:48,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2022-02-15 04:54:48,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1455. [2022-02-15 04:54:48,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1450 states have (on average 1.3924137931034484) internal successors, (2019), 1450 states have internal predecessors, (2019), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:48,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 2023 transitions. [2022-02-15 04:54:48,549 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 2023 transitions. Word has length 216 [2022-02-15 04:54:48,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:54:48,549 INFO L470 AbstractCegarLoop]: Abstraction has 1455 states and 2023 transitions. [2022-02-15 04:54:48,549 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) [2022-02-15 04:54:48,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 2023 transitions. [2022-02-15 04:54:48,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-02-15 04:54:48,551 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:54:48,551 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:54:48,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 04:54:48,551 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:54:48,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:54:48,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1406606387, now seen corresponding path program 1 times [2022-02-15 04:54:48,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:54:48,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699200044] [2022-02-15 04:54:48,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:03,139 WARN L228 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:55:11,910 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:11,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:11,926 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:12,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:12,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:12,084 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:12,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699200044] [2022-02-15 04:55:12,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [699200044] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:12,084 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:12,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:55:12,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824663685] [2022-02-15 04:55:12,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:12,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:55:12,085 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:12,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:55:12,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:55:12,085 INFO L87 Difference]: Start difference. First operand 1455 states and 2023 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:14,096 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 [] [2022-02-15 04:55:14,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:14,690 INFO L93 Difference]: Finished difference Result 3040 states and 4225 transitions. [2022-02-15 04:55:14,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:55:14,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-02-15 04:55:14,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:14,693 INFO L225 Difference]: With dead ends: 3040 [2022-02-15 04:55:14,693 INFO L226 Difference]: Without dead ends: 1601 [2022-02-15 04:55:14,695 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 [2022-02-15 04:55:14,695 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 67 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:14,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 518 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:55:14,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2022-02-15 04:55:14,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1455. [2022-02-15 04:55:14,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1450 states have (on average 1.389655172413793) internal successors, (2015), 1450 states have internal predecessors, (2015), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:14,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 2019 transitions. [2022-02-15 04:55:14,843 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 2019 transitions. Word has length 239 [2022-02-15 04:55:14,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:14,843 INFO L470 AbstractCegarLoop]: Abstraction has 1455 states and 2019 transitions. [2022-02-15 04:55:14,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:14,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 2019 transitions. [2022-02-15 04:55:14,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-02-15 04:55:14,845 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:14,845 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:14,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 04:55:14,845 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:14,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:14,846 INFO L85 PathProgramCache]: Analyzing trace with hash 190452661, now seen corresponding path program 1 times [2022-02-15 04:55:14,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:14,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112184681] [2022-02-15 04:55:14,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:32,113 WARN L228 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:55:41,923 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:41,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:41,940 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:42,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:42,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:42,266 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:42,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112184681] [2022-02-15 04:55:42,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2112184681] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:42,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:42,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:55:42,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369768970] [2022-02-15 04:55:42,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:42,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:55:42,268 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:42,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:55:42,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:55:42,268 INFO L87 Difference]: Start difference. First operand 1455 states and 2019 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:44,277 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 [] [2022-02-15 04:55:44,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:44,870 INFO L93 Difference]: Finished difference Result 3172 states and 4405 transitions. [2022-02-15 04:55:44,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:55:44,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-02-15 04:55:44,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:44,872 INFO L225 Difference]: With dead ends: 3172 [2022-02-15 04:55:44,873 INFO L226 Difference]: Without dead ends: 1733 [2022-02-15 04:55:44,874 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 [2022-02-15 04:55:44,875 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 66 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:44,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 518 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:55:44,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2022-02-15 04:55:45,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1459. [2022-02-15 04:55:45,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1454 states have (on average 1.388583218707015) internal successors, (2019), 1454 states have internal predecessors, (2019), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:45,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 2023 transitions. [2022-02-15 04:55:45,023 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 2023 transitions. Word has length 239 [2022-02-15 04:55:45,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:45,023 INFO L470 AbstractCegarLoop]: Abstraction has 1459 states and 2023 transitions. [2022-02-15 04:55:45,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:45,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 2023 transitions. [2022-02-15 04:55:45,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-02-15 04:55:45,025 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:45,025 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:45,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 04:55:45,025 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:45,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:45,026 INFO L85 PathProgramCache]: Analyzing trace with hash -49145169, now seen corresponding path program 1 times [2022-02-15 04:55:45,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:45,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64857292] [2022-02-15 04:55:45,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:56:04,360 WARN L228 SmtUtils]: Spent 10.82s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)