/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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 17:28:08,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 17:28:08,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 17:28:08,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 17:28:08,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 17:28:08,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 17:28:08,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 17:28:08,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 17:28:08,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 17:28:08,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 17:28:08,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 17:28:08,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 17:28:08,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 17:28:08,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 17:28:08,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 17:28:08,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 17:28:08,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 17:28:08,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 17:28:08,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 17:28:08,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 17:28:08,805 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 17:28:08,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 17:28:08,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 17:28:08,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 17:28:08,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 17:28:08,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 17:28:08,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 17:28:08,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 17:28:08,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 17:28:08,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 17:28:08,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 17:28:08,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 17:28:08,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 17:28:08,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 17:28:08,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 17:28:08,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 17:28:08,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 17:28:08,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 17:28:08,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 17:28:08,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 17:28:08,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 17:28:08,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 17:28:08,820 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-03-20 17:28:08,831 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 17:28:08,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 17:28:08,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 17:28:08,832 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 17:28:08,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 17:28:08,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 17:28:08,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 17:28:08,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 17:28:08,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 17:28:08,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 17:28:08,834 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 17:28:08,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 17:28:08,834 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 17:28:08,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 17:28:08,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 17:28:08,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 17:28:08,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 17:28:08,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 17:28:08,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 17:28:08,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 17:28:08,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 17:28:08,835 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 17:28:08,835 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 17:28:08,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 17:28:08,835 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-20 17:28:08,835 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 17:28:09,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 17:28:09,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 17:28:09,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 17:28:09,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 17:28:09,065 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 17:28:09,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c [2022-03-20 17:28:09,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34c379fa0/cf0ca47bf4dd43418caa48665e1af59a/FLAG80005778a [2022-03-20 17:28:09,588 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 17:28:09,588 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c [2022-03-20 17:28:09,612 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34c379fa0/cf0ca47bf4dd43418caa48665e1af59a/FLAG80005778a [2022-03-20 17:28:09,630 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34c379fa0/cf0ca47bf4dd43418caa48665e1af59a [2022-03-20 17:28:09,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 17:28:09,635 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 17:28:09,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 17:28:09,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 17:28:09,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 17:28:09,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 05:28:09" (1/1) ... [2022-03-20 17:28:09,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f17ead8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:09, skipping insertion in model container [2022-03-20 17:28:09,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 05:28:09" (1/1) ... [2022-03-20 17:28:09,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 17:28:09,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 17:28:09,986 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.01.i.cil-1.c[65523,65536] [2022-03-20 17:28:10,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 17:28:10,017 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 17:28:10,112 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.01.i.cil-1.c[65523,65536] [2022-03-20 17:28:10,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 17:28:10,125 INFO L208 MainTranslator]: Completed translation [2022-03-20 17:28:10,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:10 WrapperNode [2022-03-20 17:28:10,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 17:28:10,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 17:28:10,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 17:28:10,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 17:28:10,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:10" (1/1) ... [2022-03-20 17:28:10,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:10" (1/1) ... [2022-03-20 17:28:10,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:10" (1/1) ... [2022-03-20 17:28:10,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:10" (1/1) ... [2022-03-20 17:28:10,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:10" (1/1) ... [2022-03-20 17:28:10,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:10" (1/1) ... [2022-03-20 17:28:10,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:10" (1/1) ... [2022-03-20 17:28:10,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 17:28:10,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 17:28:10,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 17:28:10,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 17:28:10,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:10" (1/1) ... [2022-03-20 17:28:10,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 17:28:10,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 17:28:10,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 17:28:10,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 17:28:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 17:28:10,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 17:28:10,273 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 17:28:10,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-20 17:28:10,273 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-20 17:28:10,273 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 17:28:10,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-20 17:28:10,274 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 17:28:10,274 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 17:28:10,274 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 17:28:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 17:28:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 17:28:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 17:28:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 17:28:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 17:28:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 17:28:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 17:28:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 17:28:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 17:28:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 17:28:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-20 17:28:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 17:28:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-20 17:28:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-20 17:28:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 17:28:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 17:28:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 17:28:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 17:28:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 17:28:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 17:28:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 17:28:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 17:28:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 17:28:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 17:28:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 17:28:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 17:28:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 17:28:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 17:28:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 17:28:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 17:28:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 17:28:10,453 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 17:28:10,454 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 17:28:11,633 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:28:11,978 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-20 17:28:11,978 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-20 17:28:12,002 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 17:28:12,010 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 17:28:12,010 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 17:28:12,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 05:28:12 BoogieIcfgContainer [2022-03-20 17:28:12,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 17:28:12,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 17:28:12,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 17:28:12,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 17:28:12,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 05:28:09" (1/3) ... [2022-03-20 17:28:12,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54775696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 05:28:12, skipping insertion in model container [2022-03-20 17:28:12,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:10" (2/3) ... [2022-03-20 17:28:12,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54775696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 05:28:12, skipping insertion in model container [2022-03-20 17:28:12,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 05:28:12" (3/3) ... [2022-03-20 17:28:12,019 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-1.c [2022-03-20 17:28:12,023 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 17:28:12,023 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 17:28:12,055 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 17:28:12,060 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, 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 [2022-03-20 17:28:12,060 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 17:28:12,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 17:28:12,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-20 17:28:12,093 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:28:12,093 INFO L499 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] [2022-03-20 17:28:12,094 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:28:12,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:28:12,098 INFO L85 PathProgramCache]: Analyzing trace with hash -959596949, now seen corresponding path program 1 times [2022-03-20 17:28:12,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:12,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2014124780] [2022-03-20 17:28:12,111 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:28:12,111 INFO L85 PathProgramCache]: Analyzing trace with hash -959596949, now seen corresponding path program 2 times [2022-03-20 17:28:12,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:28:12,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673467915] [2022-03-20 17:28:12,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:28:12,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:28:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:12,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:28:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:12,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 17:28:12,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:28:12,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673467915] [2022-03-20 17:28:12,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673467915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:12,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:12,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:28:12,524 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:28:12,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2014124780] [2022-03-20 17:28:12,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2014124780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:12,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:12,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:28:12,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156612548] [2022-03-20 17:28:12,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:28:12,527 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:28:12,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:12,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:28:12,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:28:12,549 INFO L87 Difference]: Start difference. First operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 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) [2022-03-20 17:28:14,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:28:15,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:28:15,009 INFO L93 Difference]: Finished difference Result 271 states and 444 transitions. [2022-03-20 17:28:15,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:28:15,011 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 [2022-03-20 17:28:15,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:28:15,017 INFO L225 Difference]: With dead ends: 271 [2022-03-20 17:28:15,017 INFO L226 Difference]: Without dead ends: 124 [2022-03-20 17:28:15,019 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:28:15,021 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 7 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:28:15,022 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 558 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 321 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:28:15,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-03-20 17:28:15,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2022-03-20 17:28:15,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 118 states have (on average 1.4915254237288136) internal successors, (176), 118 states have internal predecessors, (176), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:15,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 180 transitions. [2022-03-20 17:28:15,054 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 180 transitions. Word has length 30 [2022-03-20 17:28:15,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:28:15,055 INFO L478 AbstractCegarLoop]: Abstraction has 123 states and 180 transitions. [2022-03-20 17:28:15,055 INFO L479 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) [2022-03-20 17:28:15,055 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 180 transitions. [2022-03-20 17:28:15,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-20 17:28:15,058 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:28:15,058 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:28:15,058 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 17:28:15,058 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:28:15,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:28:15,059 INFO L85 PathProgramCache]: Analyzing trace with hash -541033565, now seen corresponding path program 1 times [2022-03-20 17:28:15,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:15,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1845905606] [2022-03-20 17:28:15,061 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:28:15,061 INFO L85 PathProgramCache]: Analyzing trace with hash -541033565, now seen corresponding path program 2 times [2022-03-20 17:28:15,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:28:15,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147454822] [2022-03-20 17:28:15,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:28:15,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:28:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:15,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:28:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:15,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:28:15,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:28:15,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147454822] [2022-03-20 17:28:15,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147454822] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:15,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:15,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:28:15,321 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:28:15,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1845905606] [2022-03-20 17:28:15,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1845905606] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:15,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:15,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:28:15,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708778310] [2022-03-20 17:28:15,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:28:15,323 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:28:15,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:15,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:28:15,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:28:15,324 INFO L87 Difference]: Start difference. First operand 123 states and 180 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:17,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:28:17,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:28:17,604 INFO L93 Difference]: Finished difference Result 333 states and 496 transitions. [2022-03-20 17:28:17,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:28:17,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 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 45 [2022-03-20 17:28:17,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:28:17,607 INFO L225 Difference]: With dead ends: 333 [2022-03-20 17:28:17,607 INFO L226 Difference]: Without dead ends: 226 [2022-03-20 17:28:17,608 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:28:17,608 INFO L913 BasicCegarLoop]: 168 mSDtfsCounter, 125 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:28:17,609 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 323 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:28:17,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-03-20 17:28:17,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2022-03-20 17:28:17,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.4751131221719458) internal successors, (326), 221 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:17,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 330 transitions. [2022-03-20 17:28:17,625 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 330 transitions. Word has length 45 [2022-03-20 17:28:17,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:28:17,626 INFO L478 AbstractCegarLoop]: Abstraction has 226 states and 330 transitions. [2022-03-20 17:28:17,626 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:17,626 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 330 transitions. [2022-03-20 17:28:17,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-20 17:28:17,627 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:28:17,627 INFO L499 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] [2022-03-20 17:28:17,628 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 17:28:17,628 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:28:17,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:28:17,628 INFO L85 PathProgramCache]: Analyzing trace with hash -391559510, now seen corresponding path program 1 times [2022-03-20 17:28:17,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:17,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1383919520] [2022-03-20 17:28:17,629 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:28:17,629 INFO L85 PathProgramCache]: Analyzing trace with hash -391559510, now seen corresponding path program 2 times [2022-03-20 17:28:17,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:28:17,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822221468] [2022-03-20 17:28:17,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:28:17,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:28:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:17,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:28:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:17,843 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:28:17,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:28:17,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822221468] [2022-03-20 17:28:17,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822221468] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:17,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:17,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:28:17,844 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:28:17,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1383919520] [2022-03-20 17:28:17,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1383919520] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:17,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:17,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:28:17,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790974671] [2022-03-20 17:28:17,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:28:17,847 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:28:17,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:17,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:28:17,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:28:17,847 INFO L87 Difference]: Start difference. First operand 226 states and 330 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) [2022-03-20 17:28:19,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:28:20,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:28:20,243 INFO L93 Difference]: Finished difference Result 368 states and 543 transitions. [2022-03-20 17:28:20,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:28:20,244 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 [2022-03-20 17:28:20,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:28:20,246 INFO L225 Difference]: With dead ends: 368 [2022-03-20 17:28:20,246 INFO L226 Difference]: Without dead ends: 261 [2022-03-20 17:28:20,247 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:28:20,247 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 31 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:28:20,247 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 490 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:28:20,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-20 17:28:20,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 244. [2022-03-20 17:28:20,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.4895397489539748) internal successors, (356), 239 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:20,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 360 transitions. [2022-03-20 17:28:20,260 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 360 transitions. Word has length 60 [2022-03-20 17:28:20,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:28:20,260 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 360 transitions. [2022-03-20 17:28:20,260 INFO L479 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) [2022-03-20 17:28:20,260 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 360 transitions. [2022-03-20 17:28:20,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-20 17:28:20,262 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:28:20,262 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:28:20,262 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 17:28:20,263 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:28:20,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:28:20,263 INFO L85 PathProgramCache]: Analyzing trace with hash -63404668, now seen corresponding path program 3 times [2022-03-20 17:28:20,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:20,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1285515105] [2022-03-20 17:28:28,718 WARN L232 SmtUtils]: Spent 8.45s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:28:37,033 WARN L232 SmtUtils]: Spent 6.18s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:28:37,850 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:28:37,850 INFO L85 PathProgramCache]: Analyzing trace with hash -63404668, now seen corresponding path program 4 times [2022-03-20 17:28:37,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:28:37,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88431888] [2022-03-20 17:28:37,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:28:37,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:28:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:38,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:28:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:38,046 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:28:38,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:28:38,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88431888] [2022-03-20 17:28:38,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88431888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:38,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:38,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:28:38,047 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:28:38,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1285515105] [2022-03-20 17:28:38,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1285515105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:38,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:38,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:28:38,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171304126] [2022-03-20 17:28:38,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:28:38,050 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:28:38,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:38,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:28:38,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:28:38,052 INFO L87 Difference]: Start difference. First operand 244 states and 360 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) [2022-03-20 17:28:40,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:28:40,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:28:40,469 INFO L93 Difference]: Finished difference Result 655 states and 976 transitions. [2022-03-20 17:28:40,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:28:40,469 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 [2022-03-20 17:28:40,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:28:40,471 INFO L225 Difference]: With dead ends: 655 [2022-03-20 17:28:40,471 INFO L226 Difference]: Without dead ends: 427 [2022-03-20 17:28:40,472 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:28:40,475 INFO L913 BasicCegarLoop]: 106 mSDtfsCounter, 113 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:28:40,478 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 302 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 381 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:28:40,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-03-20 17:28:40,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 266. [2022-03-20 17:28:40,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.4827586206896552) internal successors, (387), 261 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:40,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 391 transitions. [2022-03-20 17:28:40,511 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 391 transitions. Word has length 75 [2022-03-20 17:28:40,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:28:40,511 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 391 transitions. [2022-03-20 17:28:40,512 INFO L479 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) [2022-03-20 17:28:40,512 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 391 transitions. [2022-03-20 17:28:40,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-20 17:28:40,519 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:28:40,519 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:28:40,519 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 17:28:40,519 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:28:40,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:28:40,520 INFO L85 PathProgramCache]: Analyzing trace with hash -82060126, now seen corresponding path program 1 times [2022-03-20 17:28:40,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:40,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [972393128] [2022-03-20 17:28:45,711 WARN L232 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 189 DAG size of output: 186 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:28:57,103 WARN L232 SmtUtils]: Spent 10.14s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:29:04,352 WARN L232 SmtUtils]: Spent 5.50s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:29:05,072 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:29:05,072 INFO L85 PathProgramCache]: Analyzing trace with hash -82060126, now seen corresponding path program 2 times [2022-03-20 17:29:05,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:29:05,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205345229] [2022-03-20 17:29:05,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:29:05,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:29:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:29:05,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:29:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:29:05,216 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:29:05,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:29:05,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205345229] [2022-03-20 17:29:05,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205345229] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:29:05,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:29:05,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:29:05,217 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:29:05,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [972393128] [2022-03-20 17:29:05,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [972393128] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:29:05,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:29:05,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:29:05,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939802332] [2022-03-20 17:29:05,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:29:05,218 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:29:05,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:29:05,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:29:05,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:29:05,218 INFO L87 Difference]: Start difference. First operand 266 states and 391 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) [2022-03-20 17:29:07,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:29:07,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:29:07,641 INFO L93 Difference]: Finished difference Result 678 states and 1005 transitions. [2022-03-20 17:29:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:29:07,642 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 [2022-03-20 17:29:07,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:29:07,643 INFO L225 Difference]: With dead ends: 678 [2022-03-20 17:29:07,643 INFO L226 Difference]: Without dead ends: 428 [2022-03-20 17:29:07,644 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:29:07,644 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 120 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:29:07,645 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:29:07,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-03-20 17:29:07,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 268. [2022-03-20 17:29:07,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.4752851711026616) internal successors, (388), 263 states have internal predecessors, (388), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:29:07,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 392 transitions. [2022-03-20 17:29:07,656 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 392 transitions. Word has length 75 [2022-03-20 17:29:07,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:29:07,656 INFO L478 AbstractCegarLoop]: Abstraction has 268 states and 392 transitions. [2022-03-20 17:29:07,656 INFO L479 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) [2022-03-20 17:29:07,657 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 392 transitions. [2022-03-20 17:29:07,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-03-20 17:29:07,657 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:29:07,657 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 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] [2022-03-20 17:29:07,658 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 17:29:07,658 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:29:07,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:29:07,658 INFO L85 PathProgramCache]: Analyzing trace with hash -2070296643, now seen corresponding path program 1 times [2022-03-20 17:29:07,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:29:07,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1272954973] [2022-03-20 17:29:25,401 WARN L232 SmtUtils]: Spent 12.42s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:29:33,362 WARN L232 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:29:34,051 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:29:34,051 INFO L85 PathProgramCache]: Analyzing trace with hash -2070296643, now seen corresponding path program 2 times [2022-03-20 17:29:34,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:29:34,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952014886] [2022-03-20 17:29:34,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:29:34,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:29:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:29:34,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:29:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:29:34,184 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:29:34,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:29:34,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952014886] [2022-03-20 17:29:34,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952014886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:29:34,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:29:34,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:29:34,185 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:29:34,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1272954973] [2022-03-20 17:29:34,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1272954973] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:29:34,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:29:34,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:29:34,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295874190] [2022-03-20 17:29:34,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:29:34,186 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:29:34,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:29:34,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:29:34,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:29:34,186 INFO L87 Difference]: Start difference. First operand 268 states and 392 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) [2022-03-20 17:29:36,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:29:36,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:29:36,570 INFO L93 Difference]: Finished difference Result 421 states and 618 transitions. [2022-03-20 17:29:36,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:29:36,570 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 [2022-03-20 17:29:36,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:29:36,572 INFO L225 Difference]: With dead ends: 421 [2022-03-20 17:29:36,572 INFO L226 Difference]: Without dead ends: 284 [2022-03-20 17:29:36,572 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:29:36,573 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 33 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 486 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 [2022-03-20 17:29:36,573 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 486 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:29:36,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-03-20 17:29:36,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 268. [2022-03-20 17:29:36,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.4714828897338403) internal successors, (387), 263 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:29:36,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 391 transitions. [2022-03-20 17:29:36,609 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 391 transitions. Word has length 76 [2022-03-20 17:29:36,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:29:36,609 INFO L478 AbstractCegarLoop]: Abstraction has 268 states and 391 transitions. [2022-03-20 17:29:36,609 INFO L479 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) [2022-03-20 17:29:36,609 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 391 transitions. [2022-03-20 17:29:36,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-20 17:29:36,610 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:29:36,610 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:29:36,610 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 17:29:36,610 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:29:36,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:29:36,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1822086841, now seen corresponding path program 1 times [2022-03-20 17:29:36,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:29:36,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [727577960] [2022-03-20 17:29:53,034 WARN L232 SmtUtils]: Spent 10.25s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:30:00,190 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:00,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1822086841, now seen corresponding path program 2 times [2022-03-20 17:30:00,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:00,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249489776] [2022-03-20 17:30:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:00,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:00,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:00,348 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:30:00,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:00,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249489776] [2022-03-20 17:30:00,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249489776] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:00,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:00,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:00,349 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:00,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [727577960] [2022-03-20 17:30:00,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [727577960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:00,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:00,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:00,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115129524] [2022-03-20 17:30:00,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:00,349 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:30:00,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:00,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:30:00,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:30:00,350 INFO L87 Difference]: Start difference. First operand 268 states and 391 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) [2022-03-20 17:30:02,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:02,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:02,737 INFO L93 Difference]: Finished difference Result 421 states and 616 transitions. [2022-03-20 17:30:02,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:30:02,738 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 [2022-03-20 17:30:02,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:02,739 INFO L225 Difference]: With dead ends: 421 [2022-03-20 17:30:02,739 INFO L226 Difference]: Without dead ends: 284 [2022-03-20 17:30:02,739 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:30:02,740 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 31 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:02,740 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 484 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:30:02,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-03-20 17:30:02,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 268. [2022-03-20 17:30:02,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.467680608365019) internal successors, (386), 263 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:02,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 390 transitions. [2022-03-20 17:30:02,748 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 390 transitions. Word has length 77 [2022-03-20 17:30:02,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:02,749 INFO L478 AbstractCegarLoop]: Abstraction has 268 states and 390 transitions. [2022-03-20 17:30:02,749 INFO L479 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) [2022-03-20 17:30:02,749 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 390 transitions. [2022-03-20 17:30:02,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 17:30:02,749 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:02,750 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:30:02,750 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 17:30:02,750 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:02,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:02,750 INFO L85 PathProgramCache]: Analyzing trace with hash -963517886, now seen corresponding path program 1 times [2022-03-20 17:30:02,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:02,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1201073096] [2022-03-20 17:30:16,705 WARN L232 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:30:25,203 WARN L232 SmtUtils]: Spent 6.23s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:30:25,912 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:25,913 INFO L85 PathProgramCache]: Analyzing trace with hash -963517886, now seen corresponding path program 2 times [2022-03-20 17:30:25,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:25,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339890544] [2022-03-20 17:30:25,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:25,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:26,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:26,053 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:30:26,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:26,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339890544] [2022-03-20 17:30:26,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339890544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:26,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:26,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:26,054 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:26,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1201073096] [2022-03-20 17:30:26,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1201073096] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:26,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:26,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:26,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410225455] [2022-03-20 17:30:26,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:26,054 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:30:26,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:26,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:30:26,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:30:26,055 INFO L87 Difference]: Start difference. First operand 268 states and 390 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 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) [2022-03-20 17:30:28,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:28,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:28,387 INFO L93 Difference]: Finished difference Result 412 states and 603 transitions. [2022-03-20 17:30:28,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:30:28,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 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 [2022-03-20 17:30:28,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:28,388 INFO L225 Difference]: With dead ends: 412 [2022-03-20 17:30:28,388 INFO L226 Difference]: Without dead ends: 275 [2022-03-20 17:30:28,389 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:30:28,389 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 22 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:28,389 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 470 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:30:28,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-03-20 17:30:28,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 268. [2022-03-20 17:30:28,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.4638783269961977) internal successors, (385), 263 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:28,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 389 transitions. [2022-03-20 17:30:28,397 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 389 transitions. Word has length 78 [2022-03-20 17:30:28,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:28,397 INFO L478 AbstractCegarLoop]: Abstraction has 268 states and 389 transitions. [2022-03-20 17:30:28,397 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 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) [2022-03-20 17:30:28,397 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 389 transitions. [2022-03-20 17:30:28,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 17:30:28,398 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:28,398 INFO L499 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] [2022-03-20 17:30:28,398 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 17:30:28,398 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:28,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:28,399 INFO L85 PathProgramCache]: Analyzing trace with hash -867420063, now seen corresponding path program 1 times [2022-03-20 17:30:28,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:28,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [272816554] [2022-03-20 17:30:28,399 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:28,399 INFO L85 PathProgramCache]: Analyzing trace with hash -867420063, now seen corresponding path program 2 times [2022-03-20 17:30:28,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:28,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501419741] [2022-03-20 17:30:28,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:28,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:28,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:28,549 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-03-20 17:30:28,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:28,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501419741] [2022-03-20 17:30:28,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501419741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:28,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:28,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:28,549 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:28,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [272816554] [2022-03-20 17:30:28,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [272816554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:28,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:28,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:28,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082080685] [2022-03-20 17:30:28,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:28,550 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:30:28,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:28,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:30:28,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:28,551 INFO L87 Difference]: Start difference. First operand 268 states and 389 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) [2022-03-20 17:30:30,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:30,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:30,964 INFO L93 Difference]: Finished difference Result 539 states and 791 transitions. [2022-03-20 17:30:30,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:30:30,964 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 [2022-03-20 17:30:30,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:30,966 INFO L225 Difference]: With dead ends: 539 [2022-03-20 17:30:30,966 INFO L226 Difference]: Without dead ends: 402 [2022-03-20 17:30:30,966 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:30,967 INFO L913 BasicCegarLoop]: 319 mSDtfsCounter, 128 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:30,967 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 483 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:30:30,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-03-20 17:30:30,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2022-03-20 17:30:30,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 397 states have (on average 1.4584382871536523) internal successors, (579), 397 states have internal predecessors, (579), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:30,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 583 transitions. [2022-03-20 17:30:30,979 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 583 transitions. Word has length 78 [2022-03-20 17:30:30,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:30,979 INFO L478 AbstractCegarLoop]: Abstraction has 402 states and 583 transitions. [2022-03-20 17:30:30,979 INFO L479 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) [2022-03-20 17:30:30,979 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 583 transitions. [2022-03-20 17:30:30,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 17:30:30,980 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:30,980 INFO L499 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] [2022-03-20 17:30:30,980 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 17:30:30,980 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:30,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:30,981 INFO L85 PathProgramCache]: Analyzing trace with hash -805380449, now seen corresponding path program 1 times [2022-03-20 17:30:30,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:30,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2033076265] [2022-03-20 17:30:30,981 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:30,981 INFO L85 PathProgramCache]: Analyzing trace with hash -805380449, now seen corresponding path program 2 times [2022-03-20 17:30:30,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:30,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857638801] [2022-03-20 17:30:30,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:30,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:31,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:31,087 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:30:31,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:31,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857638801] [2022-03-20 17:30:31,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857638801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:31,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:31,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:31,087 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:31,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2033076265] [2022-03-20 17:30:31,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2033076265] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:31,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:31,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:31,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260099496] [2022-03-20 17:30:31,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:31,088 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:30:31,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:31,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:30:31,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:31,088 INFO L87 Difference]: Start difference. First operand 402 states and 583 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) [2022-03-20 17:30:33,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:33,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:33,339 INFO L93 Difference]: Finished difference Result 697 states and 1013 transitions. [2022-03-20 17:30:33,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:30:33,339 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 [2022-03-20 17:30:33,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:33,340 INFO L225 Difference]: With dead ends: 697 [2022-03-20 17:30:33,341 INFO L226 Difference]: Without dead ends: 426 [2022-03-20 17:30:33,341 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:33,342 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 15 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:33,342 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 363 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 215 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 17:30:33,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-03-20 17:30:33,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2022-03-20 17:30:33,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 421 states have (on average 1.4513064133016627) internal successors, (611), 421 states have internal predecessors, (611), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:33,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 615 transitions. [2022-03-20 17:30:33,353 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 615 transitions. Word has length 78 [2022-03-20 17:30:33,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:33,354 INFO L478 AbstractCegarLoop]: Abstraction has 426 states and 615 transitions. [2022-03-20 17:30:33,354 INFO L479 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) [2022-03-20 17:30:33,354 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 615 transitions. [2022-03-20 17:30:33,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-20 17:30:33,355 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:33,355 INFO L499 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] [2022-03-20 17:30:33,355 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 17:30:33,355 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:33,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:33,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1023132448, now seen corresponding path program 1 times [2022-03-20 17:30:33,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:33,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1610955596] [2022-03-20 17:30:33,356 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:33,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1023132448, now seen corresponding path program 2 times [2022-03-20 17:30:33,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:33,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280751670] [2022-03-20 17:30:33,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:33,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:33,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:33,505 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-20 17:30:33,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:33,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280751670] [2022-03-20 17:30:33,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280751670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:33,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:33,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:33,506 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:33,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1610955596] [2022-03-20 17:30:33,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1610955596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:33,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:33,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:33,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503165749] [2022-03-20 17:30:33,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:33,507 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:30:33,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:33,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:30:33,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:33,507 INFO L87 Difference]: Start difference. First operand 426 states and 615 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) [2022-03-20 17:30:35,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:35,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:35,905 INFO L93 Difference]: Finished difference Result 854 states and 1242 transitions. [2022-03-20 17:30:35,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:30:35,906 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 [2022-03-20 17:30:35,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:35,908 INFO L225 Difference]: With dead ends: 854 [2022-03-20 17:30:35,908 INFO L226 Difference]: Without dead ends: 559 [2022-03-20 17:30:35,909 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:35,909 INFO L913 BasicCegarLoop]: 318 mSDtfsCounter, 128 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:35,909 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 482 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:30:35,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-03-20 17:30:35,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2022-03-20 17:30:35,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 554 states have (on average 1.4512635379061372) internal successors, (804), 554 states have internal predecessors, (804), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:35,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 808 transitions. [2022-03-20 17:30:35,924 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 808 transitions. Word has length 98 [2022-03-20 17:30:35,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:35,925 INFO L478 AbstractCegarLoop]: Abstraction has 559 states and 808 transitions. [2022-03-20 17:30:35,925 INFO L479 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) [2022-03-20 17:30:35,925 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 808 transitions. [2022-03-20 17:30:35,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-20 17:30:35,926 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:35,926 INFO L499 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, 1] [2022-03-20 17:30:35,926 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 17:30:35,926 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:35,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:35,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1619812542, now seen corresponding path program 1 times [2022-03-20 17:30:35,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:35,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [432001388] [2022-03-20 17:30:35,927 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:35,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1619812542, now seen corresponding path program 2 times [2022-03-20 17:30:35,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:35,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726696664] [2022-03-20 17:30:35,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:35,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:36,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:36,057 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 17:30:36,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:36,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726696664] [2022-03-20 17:30:36,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726696664] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:36,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:36,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:36,058 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:36,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [432001388] [2022-03-20 17:30:36,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [432001388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:36,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:36,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:36,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298603508] [2022-03-20 17:30:36,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:36,058 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:30:36,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:36,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:30:36,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:36,059 INFO L87 Difference]: Start difference. First operand 559 states and 808 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:38,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:38,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:38,487 INFO L93 Difference]: Finished difference Result 1119 states and 1626 transitions. [2022-03-20 17:30:38,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:30:38,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-20 17:30:38,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:38,489 INFO L225 Difference]: With dead ends: 1119 [2022-03-20 17:30:38,489 INFO L226 Difference]: Without dead ends: 691 [2022-03-20 17:30:38,490 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:38,490 INFO L913 BasicCegarLoop]: 316 mSDtfsCounter, 126 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:38,490 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 480 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:30:38,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2022-03-20 17:30:38,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2022-03-20 17:30:38,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 686 states have (on average 1.4504373177842567) internal successors, (995), 686 states have internal predecessors, (995), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:38,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 999 transitions. [2022-03-20 17:30:38,506 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 999 transitions. Word has length 119 [2022-03-20 17:30:38,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:38,506 INFO L478 AbstractCegarLoop]: Abstraction has 691 states and 999 transitions. [2022-03-20 17:30:38,506 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:38,506 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 999 transitions. [2022-03-20 17:30:38,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 17:30:38,508 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:38,508 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:30:38,508 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 17:30:38,508 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:38,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash 409023911, now seen corresponding path program 1 times [2022-03-20 17:30:38,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:38,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [8613634] [2022-03-20 17:30:38,510 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash 409023911, now seen corresponding path program 2 times [2022-03-20 17:30:38,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:38,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369479830] [2022-03-20 17:30:38,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:38,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:38,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:38,656 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-20 17:30:38,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:38,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369479830] [2022-03-20 17:30:38,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369479830] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:38,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:38,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:38,656 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:38,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [8613634] [2022-03-20 17:30:38,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [8613634] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:38,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:38,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:38,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259752380] [2022-03-20 17:30:38,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:38,657 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:30:38,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:38,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:30:38,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:30:38,657 INFO L87 Difference]: Start difference. First operand 691 states and 999 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:40,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:41,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:41,082 INFO L93 Difference]: Finished difference Result 1825 states and 2651 transitions. [2022-03-20 17:30:41,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:30:41,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-20 17:30:41,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:41,085 INFO L225 Difference]: With dead ends: 1825 [2022-03-20 17:30:41,085 INFO L226 Difference]: Without dead ends: 1150 [2022-03-20 17:30:41,087 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:30:41,087 INFO L913 BasicCegarLoop]: 100 mSDtfsCounter, 112 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:41,087 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 286 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:30:41,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2022-03-20 17:30:41,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 796. [2022-03-20 17:30:41,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 791 states have (on average 1.4664981036662452) internal successors, (1160), 791 states have internal predecessors, (1160), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:41,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1164 transitions. [2022-03-20 17:30:41,115 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1164 transitions. Word has length 145 [2022-03-20 17:30:41,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:41,115 INFO L478 AbstractCegarLoop]: Abstraction has 796 states and 1164 transitions. [2022-03-20 17:30:41,115 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:41,115 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1164 transitions. [2022-03-20 17:30:41,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 17:30:41,116 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:41,117 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:30:41,117 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 17:30:41,117 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:41,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:41,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1531558103, now seen corresponding path program 1 times [2022-03-20 17:30:41,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:41,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2006612589] [2022-03-20 17:30:41,118 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:41,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1531558103, now seen corresponding path program 2 times [2022-03-20 17:30:41,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:41,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394736545] [2022-03-20 17:30:41,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:41,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:41,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:41,271 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 17:30:41,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:41,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394736545] [2022-03-20 17:30:41,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394736545] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:41,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:41,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:41,271 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:41,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2006612589] [2022-03-20 17:30:41,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2006612589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:41,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:41,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:41,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005388157] [2022-03-20 17:30:41,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:41,272 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:30:41,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:41,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:30:41,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:30:41,273 INFO L87 Difference]: Start difference. First operand 796 states and 1164 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) [2022-03-20 17:30:43,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:43,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:43,631 INFO L93 Difference]: Finished difference Result 1783 states and 2599 transitions. [2022-03-20 17:30:43,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:30:43,631 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 145 [2022-03-20 17:30:43,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:43,634 INFO L225 Difference]: With dead ends: 1783 [2022-03-20 17:30:43,634 INFO L226 Difference]: Without dead ends: 1003 [2022-03-20 17:30:43,635 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:30:43,636 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 46 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:43,636 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 525 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 407 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:30:43,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2022-03-20 17:30:43,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 892. [2022-03-20 17:30:43,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 887 states have (on average 1.483652762119504) internal successors, (1316), 887 states have internal predecessors, (1316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:43,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1320 transitions. [2022-03-20 17:30:43,663 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1320 transitions. Word has length 145 [2022-03-20 17:30:43,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:43,663 INFO L478 AbstractCegarLoop]: Abstraction has 892 states and 1320 transitions. [2022-03-20 17:30:43,664 INFO L479 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) [2022-03-20 17:30:43,664 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1320 transitions. [2022-03-20 17:30:43,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-03-20 17:30:43,665 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:43,665 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 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] [2022-03-20 17:30:43,666 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 17:30:43,666 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:43,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:43,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1970264700, now seen corresponding path program 1 times [2022-03-20 17:30:43,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:43,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [869627181] [2022-03-20 17:30:58,677 WARN L232 SmtUtils]: Spent 9.25s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:31:07,044 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:31:07,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1970264700, now seen corresponding path program 2 times [2022-03-20 17:31:07,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:31:07,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042195427] [2022-03-20 17:31:07,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:31:07,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:31:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:31:07,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:31:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:31:07,198 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-20 17:31:07,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:31:07,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042195427] [2022-03-20 17:31:07,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042195427] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:31:07,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:31:07,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:31:07,198 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:31:07,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [869627181] [2022-03-20 17:31:07,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [869627181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:31:07,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:31:07,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:31:07,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414851587] [2022-03-20 17:31:07,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:31:07,199 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:31:07,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:31:07,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:31:07,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:31:07,200 INFO L87 Difference]: Start difference. First operand 892 states and 1320 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:31:09,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:31:09,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:31:09,595 INFO L93 Difference]: Finished difference Result 2162 states and 3203 transitions. [2022-03-20 17:31:09,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:31:09,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 161 [2022-03-20 17:31:09,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:31:09,598 INFO L225 Difference]: With dead ends: 2162 [2022-03-20 17:31:09,598 INFO L226 Difference]: Without dead ends: 1286 [2022-03-20 17:31:09,600 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:31:09,600 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 118 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:31:09,601 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 306 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:31:09,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2022-03-20 17:31:09,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 897. [2022-03-20 17:31:09,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 892 states have (on average 1.4708520179372198) internal successors, (1312), 892 states have internal predecessors, (1312), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:31:09,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1316 transitions. [2022-03-20 17:31:09,651 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1316 transitions. Word has length 161 [2022-03-20 17:31:09,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:31:09,651 INFO L478 AbstractCegarLoop]: Abstraction has 897 states and 1316 transitions. [2022-03-20 17:31:09,651 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:31:09,652 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1316 transitions. [2022-03-20 17:31:09,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-03-20 17:31:09,653 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:31:09,653 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 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] [2022-03-20 17:31:09,653 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 17:31:09,653 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:31:09,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:31:09,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1316927770, now seen corresponding path program 1 times [2022-03-20 17:31:09,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:31:09,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1394418512] [2022-03-20 17:31:27,297 WARN L232 SmtUtils]: Spent 12.05s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:31:35,671 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:31:35,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1316927770, now seen corresponding path program 2 times [2022-03-20 17:31:35,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:31:35,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682126557] [2022-03-20 17:31:35,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:31:35,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:31:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:31:35,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:31:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:31:35,860 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-20 17:31:35,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:31:35,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682126557] [2022-03-20 17:31:35,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682126557] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:31:35,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:31:35,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:31:35,860 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:31:35,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1394418512] [2022-03-20 17:31:35,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1394418512] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:31:35,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:31:35,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:31:35,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548491390] [2022-03-20 17:31:35,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:31:35,861 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:31:35,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:31:35,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:31:35,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:31:35,861 INFO L87 Difference]: Start difference. First operand 897 states and 1316 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) [2022-03-20 17:31:37,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:31:38,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:31:38,292 INFO L93 Difference]: Finished difference Result 1889 states and 2743 transitions. [2022-03-20 17:31:38,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:31:38,292 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 162 [2022-03-20 17:31:38,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:31:38,295 INFO L225 Difference]: With dead ends: 1889 [2022-03-20 17:31:38,295 INFO L226 Difference]: Without dead ends: 1008 [2022-03-20 17:31:38,296 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:31:38,297 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 54 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:31:38,297 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 523 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:31:38,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-03-20 17:31:38,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 897. [2022-03-20 17:31:38,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 892 states have (on average 1.4663677130044843) internal successors, (1308), 892 states have internal predecessors, (1308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:31:38,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1312 transitions. [2022-03-20 17:31:38,329 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1312 transitions. Word has length 162 [2022-03-20 17:31:38,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:31:38,329 INFO L478 AbstractCegarLoop]: Abstraction has 897 states and 1312 transitions. [2022-03-20 17:31:38,329 INFO L479 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) [2022-03-20 17:31:38,329 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1312 transitions. [2022-03-20 17:31:38,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-20 17:31:38,331 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:31:38,331 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 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] [2022-03-20 17:31:38,331 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 17:31:38,331 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:31:38,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:31:38,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1395645249, now seen corresponding path program 1 times [2022-03-20 17:31:38,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:31:38,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1361100855] [2022-03-20 17:31:56,741 WARN L232 SmtUtils]: Spent 12.68s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:32:05,894 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:32:05,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1395645249, now seen corresponding path program 2 times [2022-03-20 17:32:05,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:32:05,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20013422] [2022-03-20 17:32:05,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:32:05,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:32:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:32:06,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:32:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:32:06,033 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-20 17:32:06,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:32:06,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20013422] [2022-03-20 17:32:06,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20013422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:32:06,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:32:06,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:32:06,034 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:32:06,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1361100855] [2022-03-20 17:32:06,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1361100855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:32:06,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:32:06,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:32:06,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312702127] [2022-03-20 17:32:06,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:32:06,034 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:32:06,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:32:06,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:32:06,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:32:06,035 INFO L87 Difference]: Start difference. First operand 897 states and 1312 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) [2022-03-20 17:32:08,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:32:08,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:32:08,463 INFO L93 Difference]: Finished difference Result 2167 states and 3177 transitions. [2022-03-20 17:32:08,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:32:08,467 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 163 [2022-03-20 17:32:08,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:32:08,471 INFO L225 Difference]: With dead ends: 2167 [2022-03-20 17:32:08,471 INFO L226 Difference]: Without dead ends: 1286 [2022-03-20 17:32:08,473 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:32:08,473 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 115 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:32:08,473 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:32:08,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2022-03-20 17:32:08,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 907. [2022-03-20 17:32:08,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 902 states have (on average 1.4567627494456763) internal successors, (1314), 902 states have internal predecessors, (1314), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:32:08,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1318 transitions. [2022-03-20 17:32:08,522 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1318 transitions. Word has length 163 [2022-03-20 17:32:08,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:32:08,522 INFO L478 AbstractCegarLoop]: Abstraction has 907 states and 1318 transitions. [2022-03-20 17:32:08,523 INFO L479 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) [2022-03-20 17:32:08,523 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1318 transitions. [2022-03-20 17:32:08,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-20 17:32:08,524 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:32:08,524 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:32:08,525 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 17:32:08,525 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:32:08,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:32:08,525 INFO L85 PathProgramCache]: Analyzing trace with hash -863179426, now seen corresponding path program 1 times [2022-03-20 17:32:08,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:32:08,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1197405488] [2022-03-20 17:32:18,974 WARN L232 SmtUtils]: Spent 10.45s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:32:26,252 WARN L232 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:32:31,737 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:32:31,737 INFO L85 PathProgramCache]: Analyzing trace with hash -863179426, now seen corresponding path program 2 times [2022-03-20 17:32:31,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:32:31,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335247647] [2022-03-20 17:32:31,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:32:31,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:32:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:32:31,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:32:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:32:31,896 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 229 proven. 1 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-03-20 17:32:31,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:32:31,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335247647] [2022-03-20 17:32:31,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335247647] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 17:32:31,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678200068] [2022-03-20 17:32:31,896 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 17:32:31,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 17:32:31,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 17:32:31,898 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 17:32:31,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 17:33:06,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 17:33:06,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 17:33:06,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-20 17:33:06,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 17:33:07,103 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 17:33:07,104 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 17:33:07,134 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 17:33:07,209 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-20 17:33:07,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 17:33:07,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678200068] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:33:07,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 17:33:07,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-03-20 17:33:07,210 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:33:07,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1197405488] [2022-03-20 17:33:07,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1197405488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:33:07,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:33:07,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:33:07,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751983091] [2022-03-20 17:33:07,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:33:07,210 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:33:07,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:33:07,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:33:07,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-20 17:33:07,211 INFO L87 Difference]: Start difference. First operand 907 states and 1318 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:33:09,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:33:09,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:33:09,412 INFO L93 Difference]: Finished difference Result 1873 states and 2703 transitions. [2022-03-20 17:33:09,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:33:09,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-03-20 17:33:09,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:33:09,415 INFO L225 Difference]: With dead ends: 1873 [2022-03-20 17:33:09,415 INFO L226 Difference]: Without dead ends: 982 [2022-03-20 17:33:09,417 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-03-20 17:33:09,417 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 41 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 17:33:09,417 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 511 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 17:33:09,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2022-03-20 17:33:09,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 907. [2022-03-20 17:33:09,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 902 states have (on average 1.4523281596452329) internal successors, (1310), 902 states have internal predecessors, (1310), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:33:09,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1314 transitions. [2022-03-20 17:33:09,454 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1314 transitions. Word has length 163 [2022-03-20 17:33:09,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:33:09,454 INFO L478 AbstractCegarLoop]: Abstraction has 907 states and 1314 transitions. [2022-03-20 17:33:09,454 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:33:09,455 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1314 transitions. [2022-03-20 17:33:09,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-20 17:33:09,456 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:33:09,457 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:33:09,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-20 17:33:09,667 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-03-20 17:33:09,667 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:33:09,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:33:09,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1898118871, now seen corresponding path program 1 times [2022-03-20 17:33:09,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:33:09,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1441068366] [2022-03-20 17:33:21,208 WARN L232 SmtUtils]: Spent 11.54s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:33:30,615 WARN L232 SmtUtils]: Spent 7.52s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:33:36,406 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:33:36,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1898118871, now seen corresponding path program 2 times [2022-03-20 17:33:36,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:33:36,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307158833] [2022-03-20 17:33:36,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:33:36,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:33:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:33:36,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:33:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:33:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 231 proven. 1 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-03-20 17:33:36,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:33:36,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307158833] [2022-03-20 17:33:36,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307158833] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 17:33:36,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673833684] [2022-03-20 17:33:36,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 17:33:36,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 17:33:36,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 17:33:36,596 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 17:33:36,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 17:35:02,494 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 17:35:02,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 17:35:02,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 1466 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-20 17:35:02,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 17:35:02,658 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 17:35:02,658 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 17:35:02,692 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 17:35:02,758 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-20 17:35:02,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 17:35:02,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673833684] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:35:02,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 17:35:02,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-03-20 17:35:02,759 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:35:02,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1441068366] [2022-03-20 17:35:02,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1441068366] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:35:02,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:35:02,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:35:02,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330565390] [2022-03-20 17:35:02,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:35:02,759 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:35:02,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:35:02,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:35:02,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-20 17:35:02,760 INFO L87 Difference]: Start difference. First operand 907 states and 1314 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:35:04,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:35:04,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:35:04,963 INFO L93 Difference]: Finished difference Result 1857 states and 2674 transitions. [2022-03-20 17:35:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:35:04,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-03-20 17:35:04,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:35:04,966 INFO L225 Difference]: With dead ends: 1857 [2022-03-20 17:35:04,966 INFO L226 Difference]: Without dead ends: 966 [2022-03-20 17:35:04,967 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-03-20 17:35:04,967 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 35 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 17:35:04,968 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 503 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 135 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 17:35:04,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-03-20 17:35:05,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 907. [2022-03-20 17:35:05,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 902 states have (on average 1.4478935698447895) internal successors, (1306), 902 states have internal predecessors, (1306), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:35:05,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1310 transitions. [2022-03-20 17:35:05,002 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1310 transitions. Word has length 164 [2022-03-20 17:35:05,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:35:05,002 INFO L478 AbstractCegarLoop]: Abstraction has 907 states and 1310 transitions. [2022-03-20 17:35:05,003 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:35:05,003 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1310 transitions. [2022-03-20 17:35:05,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-20 17:35:05,004 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:35:05,004 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:35:05,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-20 17:35:05,227 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 17:35:05,227 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:35:05,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:35:05,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1024644139, now seen corresponding path program 1 times [2022-03-20 17:35:05,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:35:05,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [633443139] [2022-03-20 17:35:16,653 WARN L232 SmtUtils]: Spent 11.42s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:35:23,953 WARN L232 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:35:29,362 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:35:29,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1024644139, now seen corresponding path program 2 times [2022-03-20 17:35:29,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:35:29,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991987904] [2022-03-20 17:35:29,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:35:29,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:35:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:35:29,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:35:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:35:29,513 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-20 17:35:29,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:35:29,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991987904] [2022-03-20 17:35:29,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991987904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:35:29,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:35:29,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:35:29,514 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:35:29,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [633443139] [2022-03-20 17:35:29,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [633443139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:35:29,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:35:29,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:35:29,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917864335] [2022-03-20 17:35:29,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:35:29,514 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:35:29,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:35:29,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:35:29,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:35:29,515 INFO L87 Difference]: Start difference. First operand 907 states and 1310 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:35:31,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:35:31,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:35:31,846 INFO L93 Difference]: Finished difference Result 1836 states and 2640 transitions. [2022-03-20 17:35:31,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:35:31,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-03-20 17:35:31,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:35:31,848 INFO L225 Difference]: With dead ends: 1836 [2022-03-20 17:35:31,848 INFO L226 Difference]: Without dead ends: 945 [2022-03-20 17:35:31,849 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:35:31,850 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 26 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:35:31,850 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 487 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:35:31,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2022-03-20 17:35:31,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 907. [2022-03-20 17:35:31,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 902 states have (on average 1.4434589800443458) internal successors, (1302), 902 states have internal predecessors, (1302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:35:31,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1306 transitions. [2022-03-20 17:35:31,884 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1306 transitions. Word has length 164 [2022-03-20 17:35:31,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:35:31,884 INFO L478 AbstractCegarLoop]: Abstraction has 907 states and 1306 transitions. [2022-03-20 17:35:31,884 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:35:31,884 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1306 transitions. [2022-03-20 17:35:31,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-20 17:35:31,885 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:35:31,886 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:35:31,886 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 17:35:31,886 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:35:31,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:35:31,886 INFO L85 PathProgramCache]: Analyzing trace with hash -225241884, now seen corresponding path program 1 times [2022-03-20 17:35:31,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:35:31,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [493027758] [2022-03-20 17:35:31,886 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:35:31,887 INFO L85 PathProgramCache]: Analyzing trace with hash -225241884, now seen corresponding path program 2 times [2022-03-20 17:35:31,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:35:31,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839892665] [2022-03-20 17:35:31,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:35:31,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:35:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:35:32,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:35:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:35:32,053 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 17:35:32,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:35:32,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839892665] [2022-03-20 17:35:32,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839892665] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:35:32,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:35:32,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:35:32,053 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:35:32,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [493027758] [2022-03-20 17:35:32,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [493027758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:35:32,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:35:32,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:35:32,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368627583] [2022-03-20 17:35:32,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:35:32,054 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:35:32,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:35:32,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:35:32,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:35:32,054 INFO L87 Difference]: Start difference. First operand 907 states and 1306 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:35:34,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:35:34,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:35:34,447 INFO L93 Difference]: Finished difference Result 2177 states and 3145 transitions. [2022-03-20 17:35:34,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:35:34,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-03-20 17:35:34,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:35:34,460 INFO L225 Difference]: With dead ends: 2177 [2022-03-20 17:35:34,460 INFO L226 Difference]: Without dead ends: 1286 [2022-03-20 17:35:34,461 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:35:34,462 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 105 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:35:34,462 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 285 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:35:34,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2022-03-20 17:35:34,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 952. [2022-03-20 17:35:34,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 947 states have (on average 1.4646251319957762) internal successors, (1387), 947 states have internal predecessors, (1387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:35:34,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1391 transitions. [2022-03-20 17:35:34,502 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1391 transitions. Word has length 167 [2022-03-20 17:35:34,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:35:34,502 INFO L478 AbstractCegarLoop]: Abstraction has 952 states and 1391 transitions. [2022-03-20 17:35:34,502 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:35:34,503 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1391 transitions. [2022-03-20 17:35:34,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-20 17:35:34,504 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:35:34,504 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:35:34,504 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 17:35:34,504 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:35:34,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:35:34,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1603018293, now seen corresponding path program 1 times [2022-03-20 17:35:34,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:35:34,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1831293199] [2022-03-20 17:35:34,505 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:35:34,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1603018293, now seen corresponding path program 2 times [2022-03-20 17:35:34,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:35:34,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62431826] [2022-03-20 17:35:34,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:35:34,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:35:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:35:34,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:35:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:35:34,673 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 17:35:34,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:35:34,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62431826] [2022-03-20 17:35:34,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62431826] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:35:34,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:35:34,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:35:34,674 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:35:34,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1831293199] [2022-03-20 17:35:34,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1831293199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:35:34,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:35:34,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:35:34,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034829502] [2022-03-20 17:35:34,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:35:34,674 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:35:34,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:35:34,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:35:34,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:35:34,674 INFO L87 Difference]: Start difference. First operand 952 states and 1391 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:35:36,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:35:37,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:35:37,079 INFO L93 Difference]: Finished difference Result 2219 states and 3222 transitions. [2022-03-20 17:35:37,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:35:37,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-03-20 17:35:37,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:35:37,084 INFO L225 Difference]: With dead ends: 2219 [2022-03-20 17:35:37,084 INFO L226 Difference]: Without dead ends: 1283 [2022-03-20 17:35:37,085 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:35:37,085 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 105 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:35:37,085 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:35:37,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-03-20 17:35:37,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 957. [2022-03-20 17:35:37,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 952 states have (on average 1.4621848739495797) internal successors, (1392), 952 states have internal predecessors, (1392), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:35:37,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1396 transitions. [2022-03-20 17:35:37,140 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1396 transitions. Word has length 168 [2022-03-20 17:35:37,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:35:37,140 INFO L478 AbstractCegarLoop]: Abstraction has 957 states and 1396 transitions. [2022-03-20 17:35:37,140 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:35:37,141 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1396 transitions. [2022-03-20 17:35:37,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-20 17:35:37,142 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:35:37,142 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:35:37,142 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 17:35:37,142 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:35:37,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:35:37,143 INFO L85 PathProgramCache]: Analyzing trace with hash 908405628, now seen corresponding path program 1 times [2022-03-20 17:35:37,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:35:37,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [823952782] [2022-03-20 17:35:45,968 WARN L232 SmtUtils]: Spent 8.53s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:35:57,580 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:35:57,580 INFO L85 PathProgramCache]: Analyzing trace with hash 908405628, now seen corresponding path program 2 times [2022-03-20 17:35:57,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:35:57,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922082844] [2022-03-20 17:35:57,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:35:57,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:35:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:35:57,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:35:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:35:57,748 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 17:35:57,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:35:57,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922082844] [2022-03-20 17:35:57,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922082844] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:35:57,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:35:57,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:35:57,748 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:35:57,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [823952782] [2022-03-20 17:35:57,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [823952782] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:35:57,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:35:57,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:35:57,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589817947] [2022-03-20 17:35:57,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:35:57,749 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:35:57,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:35:57,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:35:57,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:35:57,749 INFO L87 Difference]: Start difference. First operand 957 states and 1396 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:35:59,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:36:00,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:36:00,218 INFO L93 Difference]: Finished difference Result 2253 states and 3280 transitions. [2022-03-20 17:36:00,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:36:00,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 188 [2022-03-20 17:36:00,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:36:00,222 INFO L225 Difference]: With dead ends: 2253 [2022-03-20 17:36:00,222 INFO L226 Difference]: Without dead ends: 1312 [2022-03-20 17:36:00,223 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:36:00,223 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 89 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:36:00,223 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 566 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 536 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:36:00,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2022-03-20 17:36:00,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1049. [2022-03-20 17:36:00,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 1044 states have (on average 1.4636015325670497) internal successors, (1528), 1044 states have internal predecessors, (1528), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:36:00,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1532 transitions. [2022-03-20 17:36:00,282 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1532 transitions. Word has length 188 [2022-03-20 17:36:00,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:36:00,283 INFO L478 AbstractCegarLoop]: Abstraction has 1049 states and 1532 transitions. [2022-03-20 17:36:00,283 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:36:00,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1532 transitions. [2022-03-20 17:36:00,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-20 17:36:00,284 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:36:00,284 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:36:00,284 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 17:36:00,285 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:36:00,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:36:00,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1801891966, now seen corresponding path program 1 times [2022-03-20 17:36:00,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:36:00,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1541207510] [2022-03-20 17:36:15,838 WARN L232 SmtUtils]: Spent 15.26s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:36:23,432 WARN L232 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:36:28,911 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:36:28,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1801891966, now seen corresponding path program 2 times [2022-03-20 17:36:28,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:36:28,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818101630] [2022-03-20 17:36:28,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:36:28,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:36:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:36:29,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:36:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:36:29,096 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 17:36:29,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:36:29,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818101630] [2022-03-20 17:36:29,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818101630] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:36:29,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:36:29,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:36:29,097 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:36:29,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1541207510] [2022-03-20 17:36:29,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1541207510] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:36:29,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:36:29,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:36:29,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353709636] [2022-03-20 17:36:29,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:36:29,097 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:36:29,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:36:29,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:36:29,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:36:29,098 INFO L87 Difference]: Start difference. First operand 1049 states and 1532 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:36:31,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:36:31,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:36:31,489 INFO L93 Difference]: Finished difference Result 2533 states and 3684 transitions. [2022-03-20 17:36:31,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:36:31,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 188 [2022-03-20 17:36:31,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:36:31,493 INFO L225 Difference]: With dead ends: 2533 [2022-03-20 17:36:31,493 INFO L226 Difference]: Without dead ends: 1500 [2022-03-20 17:36:31,494 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:36:31,494 INFO L913 BasicCegarLoop]: 100 mSDtfsCounter, 107 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:36:31,495 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 286 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:36:31,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2022-03-20 17:36:31,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1067. [2022-03-20 17:36:31,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4623352165725048) internal successors, (1553), 1062 states have internal predecessors, (1553), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:36:31,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1557 transitions. [2022-03-20 17:36:31,560 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1557 transitions. Word has length 188 [2022-03-20 17:36:31,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:36:31,560 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1557 transitions. [2022-03-20 17:36:31,560 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:36:31,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1557 transitions. [2022-03-20 17:36:31,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-03-20 17:36:31,561 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:36:31,562 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2022-03-20 17:36:31,562 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 17:36:31,562 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:36:31,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:36:31,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1954262571, now seen corresponding path program 1 times [2022-03-20 17:36:31,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:36:31,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1762838795] [2022-03-20 17:36:52,396 WARN L232 SmtUtils]: Spent 20.53s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:37:00,269 WARN L232 SmtUtils]: Spent 5.77s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:37:05,759 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:37:05,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1954262571, now seen corresponding path program 2 times [2022-03-20 17:37:05,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:37:05,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229563816] [2022-03-20 17:37:05,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:37:05,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:37:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:37:05,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:37:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:37:05,935 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 17:37:05,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:37:05,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229563816] [2022-03-20 17:37:05,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229563816] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:37:05,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:37:05,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:37:05,936 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:37:05,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1762838795] [2022-03-20 17:37:05,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1762838795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:37:05,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:37:05,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:37:05,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505937743] [2022-03-20 17:37:05,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:37:05,937 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:37:05,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:37:05,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:37:05,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:37:05,937 INFO L87 Difference]: Start difference. First operand 1067 states and 1557 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) [2022-03-20 17:37:07,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:37:08,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:37:08,443 INFO L93 Difference]: Finished difference Result 2461 states and 3585 transitions. [2022-03-20 17:37:08,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:37:08,444 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 189 [2022-03-20 17:37:08,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:37:08,447 INFO L225 Difference]: With dead ends: 2461 [2022-03-20 17:37:08,447 INFO L226 Difference]: Without dead ends: 1410 [2022-03-20 17:37:08,449 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:37:08,449 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 84 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:37:08,449 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 558 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 528 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:37:08,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2022-03-20 17:37:08,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1163. [2022-03-20 17:37:08,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 1158 states have (on average 1.4620034542314335) internal successors, (1693), 1158 states have internal predecessors, (1693), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:37:08,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1697 transitions. [2022-03-20 17:37:08,522 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1697 transitions. Word has length 189 [2022-03-20 17:37:08,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:37:08,522 INFO L478 AbstractCegarLoop]: Abstraction has 1163 states and 1697 transitions. [2022-03-20 17:37:08,522 INFO L479 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) [2022-03-20 17:37:08,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1697 transitions. [2022-03-20 17:37:08,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-03-20 17:37:08,524 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:37:08,524 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2022-03-20 17:37:08,524 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 17:37:08,524 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:37:08,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:37:08,525 INFO L85 PathProgramCache]: Analyzing trace with hash -412432023, now seen corresponding path program 1 times [2022-03-20 17:37:08,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:37:08,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [906853622] [2022-03-20 17:37:22,904 WARN L232 SmtUtils]: Spent 14.08s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:37:34,745 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:37:34,745 INFO L85 PathProgramCache]: Analyzing trace with hash -412432023, now seen corresponding path program 2 times [2022-03-20 17:37:34,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:37:34,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038053941] [2022-03-20 17:37:34,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:37:34,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:37:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:37:34,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:37:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:37:34,892 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 17:37:34,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:37:34,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038053941] [2022-03-20 17:37:34,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038053941] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:37:34,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:37:34,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:37:34,893 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:37:34,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [906853622] [2022-03-20 17:37:34,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [906853622] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:37:34,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:37:34,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:37:34,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005233242] [2022-03-20 17:37:34,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:37:34,893 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:37:34,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:37:34,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:37:34,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:37:34,894 INFO L87 Difference]: Start difference. First operand 1163 states and 1697 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) [2022-03-20 17:37:36,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:37:37,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:37:37,325 INFO L93 Difference]: Finished difference Result 2636 states and 3824 transitions. [2022-03-20 17:37:37,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:37:37,325 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 189 [2022-03-20 17:37:37,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:37:37,329 INFO L225 Difference]: With dead ends: 2636 [2022-03-20 17:37:37,329 INFO L226 Difference]: Without dead ends: 1489 [2022-03-20 17:37:37,331 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:37:37,331 INFO L913 BasicCegarLoop]: 105 mSDtfsCounter, 106 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:37:37,331 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 296 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:37:37,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2022-03-20 17:37:37,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1067. [2022-03-20 17:37:37,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4538606403013183) internal successors, (1544), 1062 states have internal predecessors, (1544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:37:37,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1548 transitions. [2022-03-20 17:37:37,403 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1548 transitions. Word has length 189 [2022-03-20 17:37:37,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:37:37,403 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1548 transitions. [2022-03-20 17:37:37,403 INFO L479 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) [2022-03-20 17:37:37,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1548 transitions. [2022-03-20 17:37:37,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-03-20 17:37:37,404 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:37:37,404 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:37:37,404 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 17:37:37,405 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:37:37,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:37:37,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1003216029, now seen corresponding path program 1 times [2022-03-20 17:37:37,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:37:37,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [445534517] [2022-03-20 17:37:37,405 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:37:37,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1003216029, now seen corresponding path program 2 times [2022-03-20 17:37:37,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:37:37,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230895657] [2022-03-20 17:37:37,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:37:37,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:37:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:37:37,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:37:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:37:37,544 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 17:37:37,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:37:37,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230895657] [2022-03-20 17:37:37,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230895657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:37:37,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:37:37,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:37:37,544 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:37:37,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [445534517] [2022-03-20 17:37:37,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [445534517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:37:37,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:37:37,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:37:37,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066576136] [2022-03-20 17:37:37,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:37:37,545 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:37:37,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:37:37,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:37:37,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:37:37,545 INFO L87 Difference]: Start difference. First operand 1067 states and 1548 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:37:39,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:37:40,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:37:40,004 INFO L93 Difference]: Finished difference Result 2579 states and 3716 transitions. [2022-03-20 17:37:40,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:37:40,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 204 [2022-03-20 17:37:40,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:37:40,008 INFO L225 Difference]: With dead ends: 2579 [2022-03-20 17:37:40,008 INFO L226 Difference]: Without dead ends: 1528 [2022-03-20 17:37:40,009 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:37:40,009 INFO L913 BasicCegarLoop]: 106 mSDtfsCounter, 92 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:37:40,009 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 298 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:37:40,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2022-03-20 17:37:40,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1257. [2022-03-20 17:37:40,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1252 states have (on average 1.468849840255591) internal successors, (1839), 1252 states have internal predecessors, (1839), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:37:40,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1843 transitions. [2022-03-20 17:37:40,098 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1843 transitions. Word has length 204 [2022-03-20 17:37:40,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:37:40,098 INFO L478 AbstractCegarLoop]: Abstraction has 1257 states and 1843 transitions. [2022-03-20 17:37:40,098 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:37:40,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1843 transitions. [2022-03-20 17:37:40,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-03-20 17:37:40,100 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:37:40,100 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:37:40,100 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 17:37:40,100 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:37:40,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:37:40,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1119072511, now seen corresponding path program 1 times [2022-03-20 17:37:40,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:37:40,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [362823699] [2022-03-20 17:37:40,101 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:37:40,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1119072511, now seen corresponding path program 2 times [2022-03-20 17:37:40,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:37:40,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104468225] [2022-03-20 17:37:40,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:37:40,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:37:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:37:40,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:37:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:37:40,243 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 17:37:40,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:37:40,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104468225] [2022-03-20 17:37:40,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104468225] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:37:40,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:37:40,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:37:40,244 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:37:40,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [362823699] [2022-03-20 17:37:40,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [362823699] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:37:40,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:37:40,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:37:40,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397412293] [2022-03-20 17:37:40,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:37:40,244 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:37:40,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:37:40,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:37:40,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:37:40,245 INFO L87 Difference]: Start difference. First operand 1257 states and 1843 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:37:42,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:37:42,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:37:42,706 INFO L93 Difference]: Finished difference Result 2824 states and 4116 transitions. [2022-03-20 17:37:42,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:37:42,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 204 [2022-03-20 17:37:42,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:37:42,710 INFO L225 Difference]: With dead ends: 2824 [2022-03-20 17:37:42,710 INFO L226 Difference]: Without dead ends: 1583 [2022-03-20 17:37:42,712 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:37:42,712 INFO L913 BasicCegarLoop]: 105 mSDtfsCounter, 90 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:37:42,712 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 296 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:37:42,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2022-03-20 17:37:42,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1322. [2022-03-20 17:37:42,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1317 states have (on average 1.4912680334092634) internal successors, (1964), 1317 states have internal predecessors, (1964), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:37:42,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1968 transitions. [2022-03-20 17:37:42,799 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1968 transitions. Word has length 204 [2022-03-20 17:37:42,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:37:42,800 INFO L478 AbstractCegarLoop]: Abstraction has 1322 states and 1968 transitions. [2022-03-20 17:37:42,800 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:37:42,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1968 transitions. [2022-03-20 17:37:42,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-03-20 17:37:42,801 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:37:42,801 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:37:42,802 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 17:37:42,802 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:37:42,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:37:42,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1665641358, now seen corresponding path program 1 times [2022-03-20 17:37:42,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:37:42,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1330855428] [2022-03-20 17:37:42,802 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:37:42,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1665641358, now seen corresponding path program 2 times [2022-03-20 17:37:42,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:37:42,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003962435] [2022-03-20 17:37:42,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:37:42,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:37:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:37:42,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:37:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:37:42,951 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 17:37:42,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:37:42,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003962435] [2022-03-20 17:37:42,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003962435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:37:42,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:37:42,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:37:42,951 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:37:42,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1330855428] [2022-03-20 17:37:42,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1330855428] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:37:42,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:37:42,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:37:42,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630501208] [2022-03-20 17:37:42,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:37:42,952 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:37:42,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:37:42,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:37:42,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:37:42,952 INFO L87 Difference]: Start difference. First operand 1322 states and 1968 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:37:44,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:37:45,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:37:45,413 INFO L93 Difference]: Finished difference Result 2889 states and 4236 transitions. [2022-03-20 17:37:45,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:37:45,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 205 [2022-03-20 17:37:45,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:37:45,417 INFO L225 Difference]: With dead ends: 2889 [2022-03-20 17:37:45,417 INFO L226 Difference]: Without dead ends: 1583 [2022-03-20 17:37:45,418 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:37:45,419 INFO L913 BasicCegarLoop]: 105 mSDtfsCounter, 90 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:37:45,419 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 296 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:37:45,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2022-03-20 17:37:45,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1322. [2022-03-20 17:37:45,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1317 states have (on average 1.4874715261958997) internal successors, (1959), 1317 states have internal predecessors, (1959), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:37:45,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1963 transitions. [2022-03-20 17:37:45,510 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1963 transitions. Word has length 205 [2022-03-20 17:37:45,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:37:45,510 INFO L478 AbstractCegarLoop]: Abstraction has 1322 states and 1963 transitions. [2022-03-20 17:37:45,510 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:37:45,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1963 transitions. [2022-03-20 17:37:45,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-03-20 17:37:45,512 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:37:45,512 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:37:45,512 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 17:37:45,512 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:37:45,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:37:45,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1752889520, now seen corresponding path program 1 times [2022-03-20 17:37:45,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:37:45,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [369751828] [2022-03-20 17:37:45,513 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:37:45,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1752889520, now seen corresponding path program 2 times [2022-03-20 17:37:45,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:37:45,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745721443] [2022-03-20 17:37:45,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:37:45,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:37:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:37:45,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:37:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:37:45,663 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 17:37:45,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:37:45,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745721443] [2022-03-20 17:37:45,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745721443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:37:45,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:37:45,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:37:45,663 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:37:45,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [369751828] [2022-03-20 17:37:45,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [369751828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:37:45,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:37:45,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:37:45,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376247291] [2022-03-20 17:37:45,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:37:45,664 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:37:45,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:37:45,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:37:45,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:37:45,664 INFO L87 Difference]: Start difference. First operand 1322 states and 1963 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:37:47,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:37:48,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:37:48,134 INFO L93 Difference]: Finished difference Result 2879 states and 4216 transitions. [2022-03-20 17:37:48,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:37:48,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 205 [2022-03-20 17:37:48,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:37:48,151 INFO L225 Difference]: With dead ends: 2879 [2022-03-20 17:37:48,152 INFO L226 Difference]: Without dead ends: 1573 [2022-03-20 17:37:48,153 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:37:48,154 INFO L913 BasicCegarLoop]: 100 mSDtfsCounter, 86 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:37:48,154 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 286 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:37:48,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-03-20 17:37:48,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1327. [2022-03-20 17:37:48,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1322 states have (on average 1.4856278366111952) internal successors, (1964), 1322 states have internal predecessors, (1964), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:37:48,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1968 transitions. [2022-03-20 17:37:48,253 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1968 transitions. Word has length 205 [2022-03-20 17:37:48,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:37:48,253 INFO L478 AbstractCegarLoop]: Abstraction has 1327 states and 1968 transitions. [2022-03-20 17:37:48,253 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:37:48,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1968 transitions. [2022-03-20 17:37:48,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-03-20 17:37:48,255 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:37:48,255 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:37:48,255 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 17:37:48,255 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:37:48,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:37:48,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1208886526, now seen corresponding path program 1 times [2022-03-20 17:37:48,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:37:48,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1221370473] [2022-03-20 17:38:00,483 WARN L232 SmtUtils]: Spent 11.93s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:38:12,472 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:38:12,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1208886526, now seen corresponding path program 2 times [2022-03-20 17:38:12,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:38:12,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325033655] [2022-03-20 17:38:12,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:38:12,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:38:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:38:12,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:38:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:38:12,629 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-03-20 17:38:12,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:38:12,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325033655] [2022-03-20 17:38:12,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325033655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:38:12,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:38:12,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:38:12,630 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:38:12,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1221370473] [2022-03-20 17:38:12,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1221370473] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:38:12,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:38:12,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:38:12,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033484894] [2022-03-20 17:38:12,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:38:12,630 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:38:12,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:38:12,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:38:12,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:38:12,631 INFO L87 Difference]: Start difference. First operand 1327 states and 1968 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) [2022-03-20 17:38:14,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:38:15,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:38:15,131 INFO L93 Difference]: Finished difference Result 2884 states and 4216 transitions. [2022-03-20 17:38:15,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:38:15,132 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 [2022-03-20 17:38:15,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:38:15,135 INFO L225 Difference]: With dead ends: 2884 [2022-03-20 17:38:15,135 INFO L226 Difference]: Without dead ends: 1573 [2022-03-20 17:38:15,136 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:38:15,136 INFO L913 BasicCegarLoop]: 106 mSDtfsCounter, 103 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:38:15,137 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 298 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 388 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:38:15,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-03-20 17:38:15,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1327. [2022-03-20 17:38:15,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1322 states have (on average 1.4742813918305597) internal successors, (1949), 1322 states have internal predecessors, (1949), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:38:15,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1953 transitions. [2022-03-20 17:38:15,241 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1953 transitions. Word has length 207 [2022-03-20 17:38:15,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:38:15,242 INFO L478 AbstractCegarLoop]: Abstraction has 1327 states and 1953 transitions. [2022-03-20 17:38:15,242 INFO L479 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) [2022-03-20 17:38:15,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1953 transitions. [2022-03-20 17:38:15,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-03-20 17:38:15,243 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:38:15,243 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:38:15,244 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 17:38:15,244 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:38:15,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:38:15,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1171434757, now seen corresponding path program 1 times [2022-03-20 17:38:15,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:38:15,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [107274044] [2022-03-20 17:38:15,244 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:38:15,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1171434757, now seen corresponding path program 2 times [2022-03-20 17:38:15,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:38:15,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039392872] [2022-03-20 17:38:15,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:38:15,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:38:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:38:15,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:38:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:38:15,405 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 17:38:15,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:38:15,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039392872] [2022-03-20 17:38:15,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039392872] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:38:15,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:38:15,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:38:15,406 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:38:15,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [107274044] [2022-03-20 17:38:15,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [107274044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:38:15,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:38:15,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:38:15,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666971294] [2022-03-20 17:38:15,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:38:15,407 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:38:15,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:38:15,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:38:15,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:38:15,408 INFO L87 Difference]: Start difference. First operand 1327 states and 1953 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:38:17,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:38:17,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:38:17,884 INFO L93 Difference]: Finished difference Result 2842 states and 4161 transitions. [2022-03-20 17:38:17,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:38:17,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 207 [2022-03-20 17:38:17,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:38:17,887 INFO L225 Difference]: With dead ends: 2842 [2022-03-20 17:38:17,887 INFO L226 Difference]: Without dead ends: 1531 [2022-03-20 17:38:17,889 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:38:17,889 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 35 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:38:17,889 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 502 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 410 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:38:17,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2022-03-20 17:38:18,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1443. [2022-03-20 17:38:18,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1438 states have (on average 1.4694019471488178) internal successors, (2113), 1438 states have internal predecessors, (2113), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:38:18,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 2117 transitions. [2022-03-20 17:38:18,005 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 2117 transitions. Word has length 207 [2022-03-20 17:38:18,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:38:18,005 INFO L478 AbstractCegarLoop]: Abstraction has 1443 states and 2117 transitions. [2022-03-20 17:38:18,005 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:38:18,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 2117 transitions. [2022-03-20 17:38:18,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-03-20 17:38:18,007 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:38:18,007 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:38:18,007 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 17:38:18,007 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:38:18,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:38:18,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1117041859, now seen corresponding path program 1 times [2022-03-20 17:38:18,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:38:18,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [13461985] [2022-03-20 17:38:18,008 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:38:18,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1117041859, now seen corresponding path program 2 times [2022-03-20 17:38:18,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:38:18,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897153356] [2022-03-20 17:38:18,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:38:18,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:38:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:38:18,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:38:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:38:18,159 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 17:38:18,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:38:18,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897153356] [2022-03-20 17:38:18,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897153356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:38:18,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:38:18,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:38:18,159 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:38:18,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [13461985] [2022-03-20 17:38:18,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [13461985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:38:18,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:38:18,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:38:18,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309458704] [2022-03-20 17:38:18,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:38:18,160 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:38:18,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:38:18,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:38:18,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:38:18,160 INFO L87 Difference]: Start difference. First operand 1443 states and 2117 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:38:20,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:38:20,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:38:20,674 INFO L93 Difference]: Finished difference Result 3096 states and 4489 transitions. [2022-03-20 17:38:20,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:38:20,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 207 [2022-03-20 17:38:20,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:38:20,677 INFO L225 Difference]: With dead ends: 3096 [2022-03-20 17:38:20,677 INFO L226 Difference]: Without dead ends: 1664 [2022-03-20 17:38:20,679 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:38:20,679 INFO L913 BasicCegarLoop]: 103 mSDtfsCounter, 80 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:38:20,679 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 292 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 376 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:38:20,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2022-03-20 17:38:20,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1453. [2022-03-20 17:38:20,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1448 states have (on average 1.4696132596685083) internal successors, (2128), 1448 states have internal predecessors, (2128), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:38:20,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2132 transitions. [2022-03-20 17:38:20,813 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2132 transitions. Word has length 207 [2022-03-20 17:38:20,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:38:20,813 INFO L478 AbstractCegarLoop]: Abstraction has 1453 states and 2132 transitions. [2022-03-20 17:38:20,813 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:38:20,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2132 transitions. [2022-03-20 17:38:20,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-03-20 17:38:20,815 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:38:20,815 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:38:20,815 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 17:38:20,815 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:38:20,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:38:20,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1085024224, now seen corresponding path program 1 times [2022-03-20 17:38:20,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:38:20,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [48003941] [2022-03-20 17:38:32,251 WARN L232 SmtUtils]: Spent 11.13s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:38:45,247 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:38:45,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1085024224, now seen corresponding path program 2 times [2022-03-20 17:38:45,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:38:45,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162923068] [2022-03-20 17:38:45,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:38:45,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:38:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:38:45,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:38:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:38:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-03-20 17:38:45,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:38:45,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162923068] [2022-03-20 17:38:45,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162923068] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:38:45,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:38:45,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:38:45,402 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:38:45,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [48003941] [2022-03-20 17:38:45,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [48003941] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:38:45,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:38:45,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:38:45,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856879291] [2022-03-20 17:38:45,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:38:45,402 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:38:45,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:38:45,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:38:45,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:38:45,403 INFO L87 Difference]: Start difference. First operand 1453 states and 2132 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:38:47,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:38:47,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:38:47,897 INFO L93 Difference]: Finished difference Result 3101 states and 4494 transitions. [2022-03-20 17:38:47,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:38:47,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 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 224 [2022-03-20 17:38:47,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:38:47,900 INFO L225 Difference]: With dead ends: 3101 [2022-03-20 17:38:47,900 INFO L226 Difference]: Without dead ends: 1664 [2022-03-20 17:38:47,902 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:38:47,902 INFO L913 BasicCegarLoop]: 106 mSDtfsCounter, 99 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:38:47,902 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 300 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:38:47,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2022-03-20 17:38:48,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1453. [2022-03-20 17:38:48,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1448 states have (on average 1.4530386740331491) internal successors, (2104), 1448 states have internal predecessors, (2104), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:38:48,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2108 transitions. [2022-03-20 17:38:48,040 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2108 transitions. Word has length 224 [2022-03-20 17:38:48,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:38:48,041 INFO L478 AbstractCegarLoop]: Abstraction has 1453 states and 2108 transitions. [2022-03-20 17:38:48,041 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:38:48,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2108 transitions. [2022-03-20 17:38:48,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-03-20 17:38:48,042 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:38:48,043 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:38:48,043 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 17:38:48,043 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:38:48,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:38:48,043 INFO L85 PathProgramCache]: Analyzing trace with hash -496155121, now seen corresponding path program 1 times [2022-03-20 17:38:48,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:38:48,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [766075998] [2022-03-20 17:38:59,970 WARN L232 SmtUtils]: Spent 11.29s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:39:07,672 WARN L232 SmtUtils]: Spent 5.39s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:39:14,122 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:39:14,123 INFO L85 PathProgramCache]: Analyzing trace with hash -496155121, now seen corresponding path program 2 times [2022-03-20 17:39:14,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:39:14,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52799009] [2022-03-20 17:39:14,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:39:14,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:39:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:39:14,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:39:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:39:14,280 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-03-20 17:39:14,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:39:14,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52799009] [2022-03-20 17:39:14,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52799009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:39:14,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:39:14,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:39:14,280 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:39:14,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [766075998] [2022-03-20 17:39:14,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [766075998] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:39:14,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:39:14,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:39:14,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984142533] [2022-03-20 17:39:14,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:39:14,281 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:39:14,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:39:14,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:39:14,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:39:14,281 INFO L87 Difference]: Start difference. First operand 1453 states and 2108 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:39:16,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:39:16,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:39:16,783 INFO L93 Difference]: Finished difference Result 3097 states and 4441 transitions. [2022-03-20 17:39:16,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:39:16,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 225 [2022-03-20 17:39:16,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:39:16,786 INFO L225 Difference]: With dead ends: 3097 [2022-03-20 17:39:16,786 INFO L226 Difference]: Without dead ends: 1660 [2022-03-20 17:39:16,787 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:39:16,788 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 100 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:39:16,788 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 308 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 381 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:39:16,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2022-03-20 17:39:16,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1453. [2022-03-20 17:39:16,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1448 states have (on average 1.4364640883977902) internal successors, (2080), 1448 states have internal predecessors, (2080), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:39:16,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2084 transitions. [2022-03-20 17:39:16,925 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2084 transitions. Word has length 225 [2022-03-20 17:39:16,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:39:16,926 INFO L478 AbstractCegarLoop]: Abstraction has 1453 states and 2084 transitions. [2022-03-20 17:39:16,926 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:39:16,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2084 transitions. [2022-03-20 17:39:16,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-20 17:39:16,927 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:39:16,928 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:39:16,928 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 17:39:16,928 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:39:16,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:39:16,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1454761395, now seen corresponding path program 1 times [2022-03-20 17:39:16,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:39:16,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [823742200] [2022-03-20 17:39:16,929 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:39:16,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1454761395, now seen corresponding path program 2 times [2022-03-20 17:39:16,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:39:16,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397442637] [2022-03-20 17:39:16,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:39:16,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:39:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:39:18,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:39:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:39:18,751 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 2 proven. 282 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-03-20 17:39:18,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:39:18,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397442637] [2022-03-20 17:39:18,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397442637] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 17:39:18,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925409190] [2022-03-20 17:39:18,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 17:39:18,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 17:39:18,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 17:39:18,753 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 17:39:18,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 17:40:01,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 17:40:01,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 17:40:01,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 319 conjunts are in the unsatisfiable core [2022-03-20 17:40:01,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 17:40:02,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 17:40:02,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 17:40:02,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 17:40:02,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41437 treesize of output 38261 [2022-03-20 17:40:02,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,140 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38116 treesize of output 38000 [2022-03-20 17:40:02,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 17:40:02,430 INFO L190 IndexEqualityManager]: detected not equals via solver