/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 07:43:36,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 07:43:36,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 07:43:36,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 07:43:36,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 07:43:36,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 07:43:36,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 07:43:36,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 07:43:36,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 07:43:36,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 07:43:36,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 07:43:36,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 07:43:36,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 07:43:36,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 07:43:36,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 07:43:36,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 07:43:36,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 07:43:36,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 07:43:36,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 07:43:36,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 07:43:36,080 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 07:43:36,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 07:43:36,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 07:43:36,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 07:43:36,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 07:43:36,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 07:43:36,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 07:43:36,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 07:43:36,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 07:43:36,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 07:43:36,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 07:43:36,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 07:43:36,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 07:43:36,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 07:43:36,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 07:43:36,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 07:43:36,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 07:43:36,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 07:43:36,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 07:43:36,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 07:43:36,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 07:43:36,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 07:43:36,090 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 07:43:36,096 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 07:43:36,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 07:43:36,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 07:43:36,097 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 07:43:36,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 07:43:36,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 07:43:36,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 07:43:36,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 07:43:36,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 07:43:36,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 07:43:36,098 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 07:43:36,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 07:43:36,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 07:43:36,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 07:43:36,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 07:43:36,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 07:43:36,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 07:43:36,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 07:43:36,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:43:36,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 07:43:36,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 07:43:36,099 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 07:43:36,100 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 07:43:36,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 07:43:36,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 07:43:36,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 07:43:36,289 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 07:43:36,291 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 07:43:36,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-2.c [2022-03-20 07:43:36,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ddae5bab/566fb64829584e859d6e7c4813816997/FLAGc181df102 [2022-03-20 07:43:36,780 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 07:43:36,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-2.c [2022-03-20 07:43:36,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ddae5bab/566fb64829584e859d6e7c4813816997/FLAGc181df102 [2022-03-20 07:43:36,807 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ddae5bab/566fb64829584e859d6e7c4813816997 [2022-03-20 07:43:36,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 07:43:36,815 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 07:43:36,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 07:43:36,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 07:43:36,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 07:43:36,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:43:36" (1/1) ... [2022-03-20 07:43:36,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7656d695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:36, skipping insertion in model container [2022-03-20 07:43:36,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:43:36" (1/1) ... [2022-03-20 07:43:36,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 07:43:36,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 07:43:37,112 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_srvr.blast.13.i.cil-2.c[74353,74366] [2022-03-20 07:43:37,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:43:37,132 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 07:43:37,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-2.c[74353,74366] [2022-03-20 07:43:37,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:43:37,242 INFO L208 MainTranslator]: Completed translation [2022-03-20 07:43:37,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:37 WrapperNode [2022-03-20 07:43:37,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 07:43:37,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 07:43:37,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 07:43:37,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 07:43:37,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:37" (1/1) ... [2022-03-20 07:43:37,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:37" (1/1) ... [2022-03-20 07:43:37,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:37" (1/1) ... [2022-03-20 07:43:37,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:37" (1/1) ... [2022-03-20 07:43:37,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:37" (1/1) ... [2022-03-20 07:43:37,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:37" (1/1) ... [2022-03-20 07:43:37,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:37" (1/1) ... [2022-03-20 07:43:37,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 07:43:37,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 07:43:37,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 07:43:37,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 07:43:37,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:37" (1/1) ... [2022-03-20 07:43:37,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:43:37,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:43:37,373 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 07:43:37,378 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 07:43:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 07:43:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 07:43:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 07:43:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 07:43:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 07:43:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 07:43:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 07:43:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 07:43:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 07:43:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 07:43:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 07:43:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 07:43:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 07:43:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 07:43:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 07:43:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 07:43:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 07:43:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 07:43:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 07:43:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 07:43:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 07:43:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 07:43:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 07:43:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 07:43:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 07:43:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 07:43:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 07:43:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 07:43:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 07:43:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 07:43:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 07:43:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 07:43:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 07:43:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 07:43:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 07:43:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 07:43:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 07:43:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 07:43:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 07:43:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 07:43:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 07:43:37,548 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 07:43:37,549 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 07:43:38,249 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 07:43:38,666 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 07:43:38,667 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 07:43:38,678 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 07:43:38,685 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 07:43:38,685 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 07:43:38,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:43:38 BoogieIcfgContainer [2022-03-20 07:43:38,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 07:43:38,688 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 07:43:38,688 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 07:43:38,718 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 07:43:38,720 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:43:38" (1/1) ... [2022-03-20 07:43:38,722 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 07:43:38,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:43:38 BasicIcfg [2022-03-20 07:43:38,764 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 07:43:38,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 07:43:38,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 07:43:38,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 07:43:38,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 07:43:36" (1/4) ... [2022-03-20 07:43:38,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf0ccf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:43:38, skipping insertion in model container [2022-03-20 07:43:38,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:43:37" (2/4) ... [2022-03-20 07:43:38,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf0ccf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:43:38, skipping insertion in model container [2022-03-20 07:43:38,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:43:38" (3/4) ... [2022-03-20 07:43:38,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf0ccf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 07:43:38, skipping insertion in model container [2022-03-20 07:43:38,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:43:38" (4/4) ... [2022-03-20 07:43:38,775 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.13.i.cil-2.cJordan [2022-03-20 07:43:38,779 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 07:43:38,779 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 07:43:38,826 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 07:43:38,832 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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 07:43:38,833 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 07:43:38,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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 07:43:38,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-20 07:43:38,865 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:43:38,865 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:43:38,866 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:43:38,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:43:38,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1749012704, now seen corresponding path program 1 times [2022-03-20 07:43:38,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:43:38,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937237944] [2022-03-20 07:43:38,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:43:38,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:43:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:39,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:43:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:39,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:43:39,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:43:39,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937237944] [2022-03-20 07:43:39,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937237944] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:43:39,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:43:39,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:43:39,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961121968] [2022-03-20 07:43:39,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:43:39,315 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:43:39,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:43:39,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:43:39,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:43:39,341 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:40,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:43,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:45,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:45,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:43:45,690 INFO L93 Difference]: Finished difference Result 191 states and 312 transitions. [2022-03-20 07:43:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:43:45,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-20 07:43:45,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:43:45,699 INFO L225 Difference]: With dead ends: 191 [2022-03-20 07:43:45,699 INFO L226 Difference]: Without dead ends: 170 [2022-03-20 07:43:45,700 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 07:43:45,702 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 34 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:43:45,702 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 607 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 414 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-20 07:43:45,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-03-20 07:43:45,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 153. [2022-03-20 07:43:45,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.554054054054054) internal successors, (230), 148 states have internal predecessors, (230), 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 07:43:45,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 234 transitions. [2022-03-20 07:43:45,771 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 234 transitions. Word has length 42 [2022-03-20 07:43:45,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:43:45,771 INFO L478 AbstractCegarLoop]: Abstraction has 153 states and 234 transitions. [2022-03-20 07:43:45,771 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:43:45,771 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 234 transitions. [2022-03-20 07:43:45,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-20 07:43:45,773 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:43:45,773 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:43:45,773 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 07:43:45,773 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:43:45,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:43:45,774 INFO L85 PathProgramCache]: Analyzing trace with hash -31615949, now seen corresponding path program 1 times [2022-03-20 07:43:45,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:43:45,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790403034] [2022-03-20 07:43:45,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:43:45,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:43:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:45,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:43:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:45,931 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:43:45,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:43:45,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790403034] [2022-03-20 07:43:45,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790403034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:43:45,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:43:45,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:43:45,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172475392] [2022-03-20 07:43:45,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:43:45,933 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:43:45,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:43:45,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:43:45,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:43:45,933 INFO L87 Difference]: Start difference. First operand 153 states and 234 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 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 07:43:47,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:49,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:49,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:43:49,811 INFO L93 Difference]: Finished difference Result 272 states and 418 transitions. [2022-03-20 07:43:49,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:43:49,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 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 55 [2022-03-20 07:43:49,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:43:49,815 INFO L225 Difference]: With dead ends: 272 [2022-03-20 07:43:49,815 INFO L226 Difference]: Without dead ends: 272 [2022-03-20 07:43:49,815 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 07:43:49,816 INFO L913 BasicCegarLoop]: 263 mSDtfsCounter, 147 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:43:49,816 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 634 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 07:43:49,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-03-20 07:43:49,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 169. [2022-03-20 07:43:49,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5548780487804879) internal successors, (255), 164 states have internal predecessors, (255), 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 07:43:49,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 259 transitions. [2022-03-20 07:43:49,827 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 259 transitions. Word has length 55 [2022-03-20 07:43:49,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:43:49,827 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 259 transitions. [2022-03-20 07:43:49,827 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 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 07:43:49,827 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 259 transitions. [2022-03-20 07:43:49,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 07:43:49,828 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:43:49,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:43:49,829 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 07:43:49,829 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:43:49,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:43:49,829 INFO L85 PathProgramCache]: Analyzing trace with hash 563568954, now seen corresponding path program 1 times [2022-03-20 07:43:49,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:43:49,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180983633] [2022-03-20 07:43:49,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:43:49,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:43:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:49,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:43:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:49,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:43:49,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:43:49,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180983633] [2022-03-20 07:43:49,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180983633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:43:49,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:43:49,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:43:49,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219475284] [2022-03-20 07:43:49,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:43:49,980 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:43:49,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:43:49,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:43:49,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:43:49,982 INFO L87 Difference]: Start difference. First operand 169 states and 259 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 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 07:43:52,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:53,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:43:53,999 INFO L93 Difference]: Finished difference Result 185 states and 278 transitions. [2022-03-20 07:43:53,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:43:53,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-03-20 07:43:53,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:43:54,001 INFO L225 Difference]: With dead ends: 185 [2022-03-20 07:43:54,001 INFO L226 Difference]: Without dead ends: 185 [2022-03-20 07:43:54,001 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 07:43:54,002 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 28 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:43:54,002 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 07:43:54,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-03-20 07:43:54,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-03-20 07:43:54,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.548780487804878) internal successors, (254), 164 states have internal predecessors, (254), 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 07:43:54,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 258 transitions. [2022-03-20 07:43:54,015 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 258 transitions. Word has length 56 [2022-03-20 07:43:54,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:43:54,016 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 258 transitions. [2022-03-20 07:43:54,016 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 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 07:43:54,016 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 258 transitions. [2022-03-20 07:43:54,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 07:43:54,017 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:43:54,018 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:43:54,018 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 07:43:54,018 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:43:54,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:43:54,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1102465370, now seen corresponding path program 1 times [2022-03-20 07:43:54,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:43:54,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623653445] [2022-03-20 07:43:54,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:43:54,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:43:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:54,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:43:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:54,118 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:43:54,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:43:54,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623653445] [2022-03-20 07:43:54,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623653445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:43:54,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:43:54,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:43:54,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278429582] [2022-03-20 07:43:54,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:43:54,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:43:54,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:43:54,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:43:54,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:43:54,119 INFO L87 Difference]: Start difference. First operand 169 states and 258 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 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 07:43:55,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:58,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:43:58,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:43:58,682 INFO L93 Difference]: Finished difference Result 185 states and 277 transitions. [2022-03-20 07:43:58,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:43:58,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-03-20 07:43:58,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:43:58,684 INFO L225 Difference]: With dead ends: 185 [2022-03-20 07:43:58,684 INFO L226 Difference]: Without dead ends: 185 [2022-03-20 07:43:58,684 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 07:43:58,685 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:43:58,685 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 07:43:58,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-03-20 07:43:58,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-03-20 07:43:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5426829268292683) internal successors, (253), 164 states have internal predecessors, (253), 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 07:43:58,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 257 transitions. [2022-03-20 07:43:58,693 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 257 transitions. Word has length 56 [2022-03-20 07:43:58,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:43:58,694 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 257 transitions. [2022-03-20 07:43:58,694 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 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 07:43:58,694 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 257 transitions. [2022-03-20 07:43:58,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 07:43:58,695 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:43:58,695 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:43:58,695 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 07:43:58,696 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:43:58,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:43:58,696 INFO L85 PathProgramCache]: Analyzing trace with hash 345212314, now seen corresponding path program 1 times [2022-03-20 07:43:58,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:43:58,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937853181] [2022-03-20 07:43:58,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:43:58,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:43:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:58,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:43:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:43:58,813 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:43:58,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:43:58,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937853181] [2022-03-20 07:43:58,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937853181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:43:58,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:43:58,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:43:58,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715536599] [2022-03-20 07:43:58,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:43:58,814 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:43:58,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:43:58,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:43:58,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:43:58,815 INFO L87 Difference]: Start difference. First operand 169 states and 257 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 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 07:44:01,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:03,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:03,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:03,648 INFO L93 Difference]: Finished difference Result 183 states and 274 transitions. [2022-03-20 07:44:03,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:03,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-03-20 07:44:03,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:03,650 INFO L225 Difference]: With dead ends: 183 [2022-03-20 07:44:03,650 INFO L226 Difference]: Without dead ends: 183 [2022-03-20 07:44:03,650 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 07:44:03,651 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:03,651 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-03-20 07:44:03,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-03-20 07:44:03,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 169. [2022-03-20 07:44:03,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5365853658536586) internal successors, (252), 164 states have internal predecessors, (252), 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 07:44:03,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 256 transitions. [2022-03-20 07:44:03,656 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 256 transitions. Word has length 56 [2022-03-20 07:44:03,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:03,656 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 256 transitions. [2022-03-20 07:44:03,656 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 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 07:44:03,656 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 256 transitions. [2022-03-20 07:44:03,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 07:44:03,657 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:03,657 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:03,658 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 07:44:03,658 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:03,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:03,658 INFO L85 PathProgramCache]: Analyzing trace with hash -3480390, now seen corresponding path program 1 times [2022-03-20 07:44:03,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:03,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017509498] [2022-03-20 07:44:03,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:03,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:03,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:03,768 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:44:03,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:03,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017509498] [2022-03-20 07:44:03,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017509498] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:03,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:03,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:03,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920745784] [2022-03-20 07:44:03,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:03,769 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:03,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:03,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:03,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:03,769 INFO L87 Difference]: Start difference. First operand 169 states and 256 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 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 07:44:05,777 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 07:44:06,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:06,214 INFO L93 Difference]: Finished difference Result 287 states and 439 transitions. [2022-03-20 07:44:06,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:06,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-03-20 07:44:06,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:06,216 INFO L225 Difference]: With dead ends: 287 [2022-03-20 07:44:06,216 INFO L226 Difference]: Without dead ends: 287 [2022-03-20 07:44:06,216 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 07:44:06,217 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 145 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:06,217 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 344 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:44:06,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-20 07:44:06,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-03-20 07:44:06,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.543956043956044) internal successors, (281), 182 states have internal predecessors, (281), 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 07:44:06,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 285 transitions. [2022-03-20 07:44:06,222 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 285 transitions. Word has length 56 [2022-03-20 07:44:06,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:06,222 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 285 transitions. [2022-03-20 07:44:06,223 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 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 07:44:06,223 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 285 transitions. [2022-03-20 07:44:06,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-03-20 07:44:06,224 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:06,224 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:06,224 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 07:44:06,224 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:06,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:06,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1719924627, now seen corresponding path program 1 times [2022-03-20 07:44:06,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:06,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983059079] [2022-03-20 07:44:06,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:06,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:06,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:06,320 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:44:06,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:06,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983059079] [2022-03-20 07:44:06,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983059079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:06,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:06,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:06,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185325787] [2022-03-20 07:44:06,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:06,321 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:06,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:06,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:06,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:06,321 INFO L87 Difference]: Start difference. First operand 187 states and 285 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:09,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:10,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:10,304 INFO L93 Difference]: Finished difference Result 287 states and 436 transitions. [2022-03-20 07:44:10,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:10,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2022-03-20 07:44:10,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:10,306 INFO L225 Difference]: With dead ends: 287 [2022-03-20 07:44:10,306 INFO L226 Difference]: Without dead ends: 287 [2022-03-20 07:44:10,306 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 07:44:10,307 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 149 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:10,307 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 07:44:10,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-20 07:44:10,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-03-20 07:44:10,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5274725274725274) internal successors, (278), 182 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:10,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 282 transitions. [2022-03-20 07:44:10,311 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 282 transitions. Word has length 57 [2022-03-20 07:44:10,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:10,311 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 282 transitions. [2022-03-20 07:44:10,312 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:10,312 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 282 transitions. [2022-03-20 07:44:10,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-20 07:44:10,313 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:10,313 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:10,313 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 07:44:10,313 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:10,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:10,313 INFO L85 PathProgramCache]: Analyzing trace with hash -9441922, now seen corresponding path program 1 times [2022-03-20 07:44:10,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:10,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540948281] [2022-03-20 07:44:10,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:10,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:10,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:10,423 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:44:10,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:10,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540948281] [2022-03-20 07:44:10,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540948281] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:10,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:10,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:10,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015101868] [2022-03-20 07:44:10,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:10,424 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:10,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:10,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:10,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:10,425 INFO L87 Difference]: Start difference. First operand 187 states and 282 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 07:44:12,892 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 07:44:14,916 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 07:44:16,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:16,069 INFO L93 Difference]: Finished difference Result 200 states and 298 transitions. [2022-03-20 07:44:16,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:16,069 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 58 [2022-03-20 07:44:16,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:16,070 INFO L225 Difference]: With dead ends: 200 [2022-03-20 07:44:16,070 INFO L226 Difference]: Without dead ends: 200 [2022-03-20 07:44:16,071 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 07:44:16,071 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 20 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:16,071 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 354 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 07:44:16,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-03-20 07:44:16,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-03-20 07:44:16,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.521978021978022) internal successors, (277), 182 states have internal predecessors, (277), 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 07:44:16,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 281 transitions. [2022-03-20 07:44:16,077 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 281 transitions. Word has length 58 [2022-03-20 07:44:16,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:16,077 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 281 transitions. [2022-03-20 07:44:16,077 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 07:44:16,077 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 281 transitions. [2022-03-20 07:44:16,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-20 07:44:16,078 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:16,078 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:16,078 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 07:44:16,078 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:16,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:16,079 INFO L85 PathProgramCache]: Analyzing trace with hash -553280842, now seen corresponding path program 1 times [2022-03-20 07:44:16,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:16,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888787027] [2022-03-20 07:44:16,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:16,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:16,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:16,194 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:44:16,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:16,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888787027] [2022-03-20 07:44:16,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888787027] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:16,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:16,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:16,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423116507] [2022-03-20 07:44:16,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:16,195 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:16,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:16,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:16,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:16,196 INFO L87 Difference]: Start difference. First operand 187 states and 281 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 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 07:44:19,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:19,337 INFO L93 Difference]: Finished difference Result 190 states and 284 transitions. [2022-03-20 07:44:19,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:19,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-03-20 07:44:19,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:19,338 INFO L225 Difference]: With dead ends: 190 [2022-03-20 07:44:19,338 INFO L226 Difference]: Without dead ends: 190 [2022-03-20 07:44:19,338 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 07:44:19,339 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:19,339 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 07:44:19,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-03-20 07:44:19,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2022-03-20 07:44:19,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5164835164835164) internal successors, (276), 182 states have internal predecessors, (276), 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 07:44:19,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 280 transitions. [2022-03-20 07:44:19,343 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 280 transitions. Word has length 59 [2022-03-20 07:44:19,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:19,343 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 280 transitions. [2022-03-20 07:44:19,343 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 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 07:44:19,343 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 280 transitions. [2022-03-20 07:44:19,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-20 07:44:19,343 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:19,344 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:19,344 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 07:44:19,344 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:19,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:19,344 INFO L85 PathProgramCache]: Analyzing trace with hash -186558363, now seen corresponding path program 1 times [2022-03-20 07:44:19,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:19,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000743803] [2022-03-20 07:44:19,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:19,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:19,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:19,433 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:44:19,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:19,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000743803] [2022-03-20 07:44:19,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000743803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:19,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:19,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:19,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288245326] [2022-03-20 07:44:19,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:19,434 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:19,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:19,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:19,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:19,435 INFO L87 Difference]: Start difference. First operand 187 states and 280 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 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 07:44:21,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:23,944 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 07:44:24,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:24,417 INFO L93 Difference]: Finished difference Result 305 states and 461 transitions. [2022-03-20 07:44:24,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:24,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-03-20 07:44:24,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:24,419 INFO L225 Difference]: With dead ends: 305 [2022-03-20 07:44:24,419 INFO L226 Difference]: Without dead ends: 305 [2022-03-20 07:44:24,419 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 07:44:24,420 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 134 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:24,420 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 344 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 07:44:24,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-03-20 07:44:24,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 215. [2022-03-20 07:44:24,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5380952380952382) internal successors, (323), 210 states have internal predecessors, (323), 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 07:44:24,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 327 transitions. [2022-03-20 07:44:24,424 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 327 transitions. Word has length 59 [2022-03-20 07:44:24,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:24,424 INFO L478 AbstractCegarLoop]: Abstraction has 215 states and 327 transitions. [2022-03-20 07:44:24,424 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 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 07:44:24,425 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 327 transitions. [2022-03-20 07:44:24,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-20 07:44:24,425 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:24,425 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:24,425 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 07:44:24,425 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:24,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:24,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1871719059, now seen corresponding path program 1 times [2022-03-20 07:44:24,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:24,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508688364] [2022-03-20 07:44:24,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:24,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:24,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:24,509 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:44:24,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:24,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508688364] [2022-03-20 07:44:24,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508688364] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:24,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:24,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:24,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44356359] [2022-03-20 07:44:24,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:24,510 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:24,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:24,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:24,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:24,511 INFO L87 Difference]: Start difference. First operand 215 states and 327 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 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 07:44:26,528 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 07:44:26,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:26,866 INFO L93 Difference]: Finished difference Result 257 states and 388 transitions. [2022-03-20 07:44:26,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:26,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 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 07:44:26,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:26,867 INFO L225 Difference]: With dead ends: 257 [2022-03-20 07:44:26,867 INFO L226 Difference]: Without dead ends: 257 [2022-03-20 07:44:26,868 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 07:44:26,868 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 31 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:26,868 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 505 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 392 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:44:26,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-20 07:44:26,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 237. [2022-03-20 07:44:26,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.543103448275862) internal successors, (358), 232 states have internal predecessors, (358), 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 07:44:26,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 362 transitions. [2022-03-20 07:44:26,872 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 362 transitions. Word has length 60 [2022-03-20 07:44:26,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:26,872 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 362 transitions. [2022-03-20 07:44:26,873 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 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 07:44:26,873 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 362 transitions. [2022-03-20 07:44:26,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-20 07:44:26,873 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:26,873 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:26,873 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 07:44:26,873 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:26,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:26,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1940068921, now seen corresponding path program 1 times [2022-03-20 07:44:26,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:26,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814256893] [2022-03-20 07:44:26,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:26,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:26,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:26,988 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 07:44:26,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:26,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814256893] [2022-03-20 07:44:26,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814256893] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:26,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:26,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:26,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572970795] [2022-03-20 07:44:26,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:26,989 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:26,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:26,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:26,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:26,990 INFO L87 Difference]: Start difference. First operand 237 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:28,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:30,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:32,419 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 07:44:33,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:33,589 INFO L93 Difference]: Finished difference Result 250 states and 377 transitions. [2022-03-20 07:44:33,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:33,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-03-20 07:44:33,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:33,591 INFO L225 Difference]: With dead ends: 250 [2022-03-20 07:44:33,591 INFO L226 Difference]: Without dead ends: 250 [2022-03-20 07:44:33,591 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 07:44:33,591 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 21 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:33,592 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 576 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 400 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-20 07:44:33,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-03-20 07:44:33,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 237. [2022-03-20 07:44:33,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5387931034482758) internal successors, (357), 232 states have internal predecessors, (357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:33,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 361 transitions. [2022-03-20 07:44:33,596 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 361 transitions. Word has length 74 [2022-03-20 07:44:33,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:33,596 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 361 transitions. [2022-03-20 07:44:33,596 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:33,596 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 361 transitions. [2022-03-20 07:44:33,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-20 07:44:33,597 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:33,597 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:33,597 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 07:44:33,597 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:33,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:33,597 INFO L85 PathProgramCache]: Analyzing trace with hash -534019623, now seen corresponding path program 1 times [2022-03-20 07:44:33,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:33,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051601890] [2022-03-20 07:44:33,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:33,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:33,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:33,691 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:44:33,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:33,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051601890] [2022-03-20 07:44:33,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051601890] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:33,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:33,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:33,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166936699] [2022-03-20 07:44:33,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:33,692 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:33,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:33,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:33,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:33,693 INFO L87 Difference]: Start difference. First operand 237 states and 361 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 07:44:37,793 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 07:44:38,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:38,140 INFO L93 Difference]: Finished difference Result 255 states and 384 transitions. [2022-03-20 07:44:38,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:38,140 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 74 [2022-03-20 07:44:38,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:38,141 INFO L225 Difference]: With dead ends: 255 [2022-03-20 07:44:38,141 INFO L226 Difference]: Without dead ends: 255 [2022-03-20 07:44:38,141 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 07:44:38,142 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 35 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:38,142 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 07:44:38,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-20 07:44:38,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237. [2022-03-20 07:44:38,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5344827586206897) internal successors, (356), 232 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 07:44:38,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 360 transitions. [2022-03-20 07:44:38,146 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 360 transitions. Word has length 74 [2022-03-20 07:44:38,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:38,146 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 360 transitions. [2022-03-20 07:44:38,147 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 07:44:38,147 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 360 transitions. [2022-03-20 07:44:38,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-20 07:44:38,147 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:38,147 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:38,147 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 07:44:38,148 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:38,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:38,148 INFO L85 PathProgramCache]: Analyzing trace with hash -801809009, now seen corresponding path program 1 times [2022-03-20 07:44:38,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:38,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986678819] [2022-03-20 07:44:38,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:38,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:38,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:38,269 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 07:44:38,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:38,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986678819] [2022-03-20 07:44:38,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986678819] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:38,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:38,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 07:44:38,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195420809] [2022-03-20 07:44:38,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:38,269 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 07:44:38,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:38,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 07:44:38,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:44:38,270 INFO L87 Difference]: Start difference. First operand 237 states and 360 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 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 07:44:39,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:40,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:42,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:43,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:44,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:44,305 INFO L93 Difference]: Finished difference Result 246 states and 371 transitions. [2022-03-20 07:44:44,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 07:44:44,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 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 75 [2022-03-20 07:44:44,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:44,306 INFO L225 Difference]: With dead ends: 246 [2022-03-20 07:44:44,306 INFO L226 Difference]: Without dead ends: 246 [2022-03-20 07:44:44,306 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 07:44:44,307 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:44,307 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 633 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 07:44:44,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-03-20 07:44:44,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-03-20 07:44:44,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5228215767634854) internal successors, (367), 241 states have internal predecessors, (367), 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 07:44:44,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 371 transitions. [2022-03-20 07:44:44,311 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 371 transitions. Word has length 75 [2022-03-20 07:44:44,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:44,311 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 371 transitions. [2022-03-20 07:44:44,311 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 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 07:44:44,312 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 371 transitions. [2022-03-20 07:44:44,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-20 07:44:44,312 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:44,312 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:44,312 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 07:44:44,312 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:44,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:44,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1681571247, now seen corresponding path program 1 times [2022-03-20 07:44:44,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:44,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241229397] [2022-03-20 07:44:44,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:44,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:44,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:44,394 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:44:44,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:44,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241229397] [2022-03-20 07:44:44,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241229397] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:44,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:44,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:44,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684507102] [2022-03-20 07:44:44,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:44,395 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:44,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:44,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:44,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:44,396 INFO L87 Difference]: Start difference. First operand 246 states and 371 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 07:44:47,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:48,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:50,927 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 07:44:51,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:51,274 INFO L93 Difference]: Finished difference Result 273 states and 405 transitions. [2022-03-20 07:44:51,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:51,275 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 75 [2022-03-20 07:44:51,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:51,276 INFO L225 Difference]: With dead ends: 273 [2022-03-20 07:44:51,276 INFO L226 Difference]: Without dead ends: 273 [2022-03-20 07:44:51,276 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 07:44:51,276 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 39 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:51,276 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-03-20 07:44:51,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-03-20 07:44:51,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 246. [2022-03-20 07:44:51,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5186721991701244) internal successors, (366), 241 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:44:51,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 370 transitions. [2022-03-20 07:44:51,280 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 370 transitions. Word has length 75 [2022-03-20 07:44:51,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:51,280 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 370 transitions. [2022-03-20 07:44:51,280 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 07:44:51,281 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 370 transitions. [2022-03-20 07:44:51,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-20 07:44:51,281 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:51,281 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:51,281 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 07:44:51,281 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:51,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:51,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1399153773, now seen corresponding path program 1 times [2022-03-20 07:44:51,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:51,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907732648] [2022-03-20 07:44:51,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:51,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:51,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:51,378 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:44:51,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:51,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907732648] [2022-03-20 07:44:51,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907732648] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:51,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:51,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:51,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77552946] [2022-03-20 07:44:51,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:51,380 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:51,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:51,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:51,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:51,380 INFO L87 Difference]: Start difference. First operand 246 states and 370 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 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 07:44:52,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:54,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:44:55,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:44:55,430 INFO L93 Difference]: Finished difference Result 355 states and 531 transitions. [2022-03-20 07:44:55,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:44:55,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 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 07:44:55,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:44:55,431 INFO L225 Difference]: With dead ends: 355 [2022-03-20 07:44:55,431 INFO L226 Difference]: Without dead ends: 355 [2022-03-20 07:44:55,431 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 07:44:55,432 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 148 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:44:55,432 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 07:44:55,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-03-20 07:44:55,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 246. [2022-03-20 07:44:55,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5020746887966805) internal successors, (362), 241 states have internal predecessors, (362), 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 07:44:55,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 366 transitions. [2022-03-20 07:44:55,436 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 366 transitions. Word has length 77 [2022-03-20 07:44:55,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:44:55,436 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 366 transitions. [2022-03-20 07:44:55,436 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 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 07:44:55,436 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 366 transitions. [2022-03-20 07:44:55,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 07:44:55,437 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:44:55,437 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:44:55,437 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 07:44:55,437 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:44:55,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:44:55,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1192836383, now seen corresponding path program 1 times [2022-03-20 07:44:55,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:44:55,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918686944] [2022-03-20 07:44:55,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:44:55,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:44:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:55,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:44:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:44:55,535 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:44:55,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:44:55,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918686944] [2022-03-20 07:44:55,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918686944] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:44:55,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:44:55,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:44:55,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205557111] [2022-03-20 07:44:55,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:44:55,536 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:44:55,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:44:55,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:44:55,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:44:55,536 INFO L87 Difference]: Start difference. First operand 246 states and 366 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 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 07:44:58,019 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 07:45:00,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:01,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:01,087 INFO L93 Difference]: Finished difference Result 355 states and 527 transitions. [2022-03-20 07:45:01,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:01,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 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 07:45:01,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:01,088 INFO L225 Difference]: With dead ends: 355 [2022-03-20 07:45:01,088 INFO L226 Difference]: Without dead ends: 355 [2022-03-20 07:45:01,088 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 07:45:01,089 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 146 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:01,089 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 07:45:01,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-03-20 07:45:01,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 246. [2022-03-20 07:45:01,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.4854771784232366) internal successors, (358), 241 states have internal predecessors, (358), 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 07:45:01,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 362 transitions. [2022-03-20 07:45:01,093 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 362 transitions. Word has length 78 [2022-03-20 07:45:01,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:01,093 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 362 transitions. [2022-03-20 07:45:01,093 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 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 07:45:01,093 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 362 transitions. [2022-03-20 07:45:01,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 07:45:01,094 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:01,094 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:01,094 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 07:45:01,094 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:01,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:01,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1089053230, now seen corresponding path program 1 times [2022-03-20 07:45:01,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:01,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993805467] [2022-03-20 07:45:01,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:01,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:01,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:01,236 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:45:01,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:01,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993805467] [2022-03-20 07:45:01,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993805467] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:01,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:01,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:01,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979048993] [2022-03-20 07:45:01,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:01,237 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:01,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:01,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:01,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:01,238 INFO L87 Difference]: Start difference. First operand 246 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:02,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:03,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:05,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:07,417 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 07:45:07,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:07,871 INFO L93 Difference]: Finished difference Result 353 states and 517 transitions. [2022-03-20 07:45:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:07,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-20 07:45:07,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:07,873 INFO L225 Difference]: With dead ends: 353 [2022-03-20 07:45:07,873 INFO L226 Difference]: Without dead ends: 353 [2022-03-20 07:45:07,873 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 07:45:07,873 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 90 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:07,873 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 513 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-20 07:45:07,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-03-20 07:45:07,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 277. [2022-03-20 07:45:07,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.4926470588235294) internal successors, (406), 272 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:07,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 410 transitions. [2022-03-20 07:45:07,877 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 410 transitions. Word has length 82 [2022-03-20 07:45:07,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:07,878 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 410 transitions. [2022-03-20 07:45:07,878 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:07,878 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 410 transitions. [2022-03-20 07:45:07,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 07:45:07,878 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:07,878 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:07,878 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 07:45:07,879 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:07,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:07,879 INFO L85 PathProgramCache]: Analyzing trace with hash -63561231, now seen corresponding path program 1 times [2022-03-20 07:45:07,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:07,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454534913] [2022-03-20 07:45:07,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:07,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:07,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:08,012 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:45:08,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:08,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454534913] [2022-03-20 07:45:08,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454534913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:08,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:08,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:08,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924328669] [2022-03-20 07:45:08,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:08,013 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:08,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:08,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:08,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:08,013 INFO L87 Difference]: Start difference. First operand 277 states and 410 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:11,318 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 07:45:13,339 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 07:45:13,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:13,772 INFO L93 Difference]: Finished difference Result 335 states and 491 transitions. [2022-03-20 07:45:13,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:13,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-20 07:45:13,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:13,774 INFO L225 Difference]: With dead ends: 335 [2022-03-20 07:45:13,774 INFO L226 Difference]: Without dead ends: 335 [2022-03-20 07:45:13,774 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 07:45:13,775 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 37 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:13,775 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 605 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 467 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 07:45:13,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-03-20 07:45:13,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 301. [2022-03-20 07:45:13,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4966216216216217) internal successors, (443), 296 states have internal predecessors, (443), 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 07:45:13,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 447 transitions. [2022-03-20 07:45:13,779 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 447 transitions. Word has length 82 [2022-03-20 07:45:13,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:13,779 INFO L478 AbstractCegarLoop]: Abstraction has 301 states and 447 transitions. [2022-03-20 07:45:13,779 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:13,779 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 447 transitions. [2022-03-20 07:45:13,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 07:45:13,780 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:13,780 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:13,780 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 07:45:13,780 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:13,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:13,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2130514276, now seen corresponding path program 1 times [2022-03-20 07:45:13,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:13,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382183741] [2022-03-20 07:45:13,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:13,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:13,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:13,874 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:45:13,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:13,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382183741] [2022-03-20 07:45:13,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382183741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:13,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:13,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:13,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800730859] [2022-03-20 07:45:13,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:13,875 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:13,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:13,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:13,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:13,876 INFO L87 Difference]: Start difference. First operand 301 states and 447 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 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 07:45:15,883 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 07:45:16,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:16,280 INFO L93 Difference]: Finished difference Result 400 states and 594 transitions. [2022-03-20 07:45:16,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:16,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 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 87 [2022-03-20 07:45:16,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:16,282 INFO L225 Difference]: With dead ends: 400 [2022-03-20 07:45:16,282 INFO L226 Difference]: Without dead ends: 400 [2022-03-20 07:45:16,282 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 07:45:16,283 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 149 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:16,283 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 346 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:45:16,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-03-20 07:45:16,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 301. [2022-03-20 07:45:16,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4763513513513513) internal successors, (437), 296 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:16,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 441 transitions. [2022-03-20 07:45:16,287 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 441 transitions. Word has length 87 [2022-03-20 07:45:16,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:16,287 INFO L478 AbstractCegarLoop]: Abstraction has 301 states and 441 transitions. [2022-03-20 07:45:16,287 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 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 07:45:16,287 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 441 transitions. [2022-03-20 07:45:16,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 07:45:16,288 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:16,288 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:16,288 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 07:45:16,288 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:16,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:16,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1861806618, now seen corresponding path program 1 times [2022-03-20 07:45:16,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:16,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423754968] [2022-03-20 07:45:16,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:16,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:16,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:16,368 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:45:16,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:16,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423754968] [2022-03-20 07:45:16,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423754968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:16,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:16,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:16,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712095144] [2022-03-20 07:45:16,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:16,369 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:16,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:16,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:16,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:16,370 INFO L87 Difference]: Start difference. First operand 301 states and 441 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 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 07:45:19,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:19,337 INFO L93 Difference]: Finished difference Result 429 states and 638 transitions. [2022-03-20 07:45:19,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:19,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 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 87 [2022-03-20 07:45:19,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:19,338 INFO L225 Difference]: With dead ends: 429 [2022-03-20 07:45:19,338 INFO L226 Difference]: Without dead ends: 429 [2022-03-20 07:45:19,338 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 07:45:19,339 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 120 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:19,339 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 07:45:19,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-03-20 07:45:19,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 351. [2022-03-20 07:45:19,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 346 states have (on average 1.5115606936416186) internal successors, (523), 346 states have internal predecessors, (523), 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 07:45:19,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 527 transitions. [2022-03-20 07:45:19,344 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 527 transitions. Word has length 87 [2022-03-20 07:45:19,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:19,344 INFO L478 AbstractCegarLoop]: Abstraction has 351 states and 527 transitions. [2022-03-20 07:45:19,344 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 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 07:45:19,344 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 527 transitions. [2022-03-20 07:45:19,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-20 07:45:19,345 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:19,345 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:19,345 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 07:45:19,345 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:19,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:19,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1882382522, now seen corresponding path program 1 times [2022-03-20 07:45:19,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:19,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378345848] [2022-03-20 07:45:19,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:19,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:19,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:19,428 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:45:19,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:19,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378345848] [2022-03-20 07:45:19,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378345848] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:19,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:19,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:19,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316285591] [2022-03-20 07:45:19,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:19,429 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:19,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:19,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:19,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:19,429 INFO L87 Difference]: Start difference. First operand 351 states and 527 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 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 07:45:22,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:23,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:24,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:24,915 INFO L93 Difference]: Finished difference Result 411 states and 613 transitions. [2022-03-20 07:45:24,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:24,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-03-20 07:45:24,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:24,917 INFO L225 Difference]: With dead ends: 411 [2022-03-20 07:45:24,917 INFO L226 Difference]: Without dead ends: 411 [2022-03-20 07:45:24,917 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 07:45:24,918 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 71 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:24,918 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 483 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 07:45:24,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-03-20 07:45:24,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 362. [2022-03-20 07:45:24,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5210084033613445) internal successors, (543), 357 states have internal predecessors, (543), 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 07:45:24,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 547 transitions. [2022-03-20 07:45:24,923 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 547 transitions. Word has length 88 [2022-03-20 07:45:24,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:24,923 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 547 transitions. [2022-03-20 07:45:24,923 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 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 07:45:24,923 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 547 transitions. [2022-03-20 07:45:24,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-20 07:45:24,924 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:24,924 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:24,924 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 07:45:24,925 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:24,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:24,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1616616152, now seen corresponding path program 1 times [2022-03-20 07:45:24,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:24,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177139248] [2022-03-20 07:45:24,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:24,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:25,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:25,023 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:45:25,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:25,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177139248] [2022-03-20 07:45:25,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177139248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:25,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:25,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:25,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673064093] [2022-03-20 07:45:25,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:25,024 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:25,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:25,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:25,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:25,024 INFO L87 Difference]: Start difference. First operand 362 states and 547 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:26,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:29,078 WARN L534 Checker$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 07:45:31,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:31,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:31,496 INFO L93 Difference]: Finished difference Result 451 states and 675 transitions. [2022-03-20 07:45:31,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:31,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-03-20 07:45:31,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:31,498 INFO L225 Difference]: With dead ends: 451 [2022-03-20 07:45:31,498 INFO L226 Difference]: Without dead ends: 451 [2022-03-20 07:45:31,498 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 07:45:31,498 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 142 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:31,499 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 472 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-20 07:45:31,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-03-20 07:45:31,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 362. [2022-03-20 07:45:31,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5070028011204482) internal successors, (538), 357 states have internal predecessors, (538), 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 07:45:31,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 542 transitions. [2022-03-20 07:45:31,503 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 542 transitions. Word has length 96 [2022-03-20 07:45:31,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:31,503 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 542 transitions. [2022-03-20 07:45:31,503 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:31,503 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 542 transitions. [2022-03-20 07:45:31,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-20 07:45:31,503 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:31,504 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:31,504 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 07:45:31,504 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:31,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:31,505 INFO L85 PathProgramCache]: Analyzing trace with hash -368196464, now seen corresponding path program 1 times [2022-03-20 07:45:31,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:31,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822549624] [2022-03-20 07:45:31,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:31,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:31,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:31,593 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:45:31,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:31,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822549624] [2022-03-20 07:45:31,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822549624] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:31,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:31,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:31,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222314624] [2022-03-20 07:45:31,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:31,594 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:31,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:31,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:31,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:31,595 INFO L87 Difference]: Start difference. First operand 362 states and 542 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:32,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:35,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:36,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:37,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:37,249 INFO L93 Difference]: Finished difference Result 441 states and 656 transitions. [2022-03-20 07:45:37,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:37,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-20 07:45:37,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:37,252 INFO L225 Difference]: With dead ends: 441 [2022-03-20 07:45:37,252 INFO L226 Difference]: Without dead ends: 441 [2022-03-20 07:45:37,252 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 07:45:37,253 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 139 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:37,253 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 368 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 07:45:37,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-03-20 07:45:37,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 362. [2022-03-20 07:45:37,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4901960784313726) internal successors, (532), 357 states have internal predecessors, (532), 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 07:45:37,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 536 transitions. [2022-03-20 07:45:37,259 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 536 transitions. Word has length 97 [2022-03-20 07:45:37,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:37,259 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 536 transitions. [2022-03-20 07:45:37,259 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:37,259 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 536 transitions. [2022-03-20 07:45:37,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-20 07:45:37,260 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:37,260 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:37,260 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 07:45:37,260 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:37,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:37,260 INFO L85 PathProgramCache]: Analyzing trace with hash -102121424, now seen corresponding path program 1 times [2022-03-20 07:45:37,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:37,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339318339] [2022-03-20 07:45:37,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:37,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:37,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:37,359 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:45:37,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:37,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339318339] [2022-03-20 07:45:37,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339318339] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:37,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:37,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:45:37,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936858742] [2022-03-20 07:45:37,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:37,360 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:45:37,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:37,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:45:37,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:45:37,361 INFO L87 Difference]: Start difference. First operand 362 states and 536 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:38,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:40,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:42,957 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 07:45:43,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:43,358 INFO L93 Difference]: Finished difference Result 399 states and 586 transitions. [2022-03-20 07:45:43,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:45:43,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-20 07:45:43,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:43,359 INFO L225 Difference]: With dead ends: 399 [2022-03-20 07:45:43,359 INFO L226 Difference]: Without dead ends: 399 [2022-03-20 07:45:43,360 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 07:45:43,360 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 77 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:43,360 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 515 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 07:45:43,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-03-20 07:45:43,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 362. [2022-03-20 07:45:43,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4873949579831933) internal successors, (531), 357 states have internal predecessors, (531), 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 07:45:43,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 535 transitions. [2022-03-20 07:45:43,364 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 535 transitions. Word has length 104 [2022-03-20 07:45:43,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:43,364 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 535 transitions. [2022-03-20 07:45:43,364 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:43,364 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 535 transitions. [2022-03-20 07:45:43,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-20 07:45:43,365 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:43,365 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:43,365 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 07:45:43,365 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:43,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:43,366 INFO L85 PathProgramCache]: Analyzing trace with hash -81784049, now seen corresponding path program 1 times [2022-03-20 07:45:43,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:43,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912863662] [2022-03-20 07:45:43,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:43,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:43,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:43,459 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-20 07:45:43,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:43,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912863662] [2022-03-20 07:45:43,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912863662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:43,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:43,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:45:43,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215373386] [2022-03-20 07:45:43,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:43,460 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:45:43,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:43,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:45:43,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:45:43,461 INFO L87 Difference]: Start difference. First operand 362 states and 535 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 07:45:44,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:46,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:48,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:48,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:48,623 INFO L93 Difference]: Finished difference Result 693 states and 1026 transitions. [2022-03-20 07:45:48,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:45:48,624 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 104 [2022-03-20 07:45:48,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:48,626 INFO L225 Difference]: With dead ends: 693 [2022-03-20 07:45:48,626 INFO L226 Difference]: Without dead ends: 693 [2022-03-20 07:45:48,626 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 07:45:48,626 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:48,626 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 432 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 280 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-20 07:45:48,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2022-03-20 07:45:48,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2022-03-20 07:45:48,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 688 states have (on average 1.4854651162790697) internal successors, (1022), 688 states have internal predecessors, (1022), 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 07:45:48,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1026 transitions. [2022-03-20 07:45:48,633 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1026 transitions. Word has length 104 [2022-03-20 07:45:48,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:48,633 INFO L478 AbstractCegarLoop]: Abstraction has 693 states and 1026 transitions. [2022-03-20 07:45:48,633 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 07:45:48,634 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1026 transitions. [2022-03-20 07:45:48,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-20 07:45:48,635 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:48,635 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:48,635 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 07:45:48,635 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:48,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:48,635 INFO L85 PathProgramCache]: Analyzing trace with hash -2012403154, now seen corresponding path program 1 times [2022-03-20 07:45:48,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:48,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907871161] [2022-03-20 07:45:48,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:48,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:48,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:48,713 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 07:45:48,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:48,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907871161] [2022-03-20 07:45:48,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907871161] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:48,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:48,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:45:48,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719869277] [2022-03-20 07:45:48,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:48,714 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:45:48,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:48,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:45:48,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:45:48,715 INFO L87 Difference]: Start difference. First operand 693 states and 1026 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:50,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:52,486 WARN L534 Checker$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 07:45:54,507 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 07:45:54,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:54,739 INFO L93 Difference]: Finished difference Result 720 states and 1061 transitions. [2022-03-20 07:45:54,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:45:54,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-20 07:45:54,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:54,741 INFO L225 Difference]: With dead ends: 720 [2022-03-20 07:45:54,741 INFO L226 Difference]: Without dead ends: 720 [2022-03-20 07:45:54,741 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 07:45:54,741 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:54,742 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 248 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 07:45:54,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-03-20 07:45:54,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2022-03-20 07:45:54,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 715 states have (on average 1.4783216783216784) internal successors, (1057), 715 states have internal predecessors, (1057), 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 07:45:54,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1061 transitions. [2022-03-20 07:45:54,748 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1061 transitions. Word has length 104 [2022-03-20 07:45:54,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:54,748 INFO L478 AbstractCegarLoop]: Abstraction has 720 states and 1061 transitions. [2022-03-20 07:45:54,748 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:54,748 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1061 transitions. [2022-03-20 07:45:54,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-20 07:45:54,749 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:54,750 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:54,750 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 07:45:54,750 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:54,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:54,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1592886323, now seen corresponding path program 1 times [2022-03-20 07:45:54,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:54,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14778219] [2022-03-20 07:45:54,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:54,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:54,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:54,817 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-03-20 07:45:54,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:54,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14778219] [2022-03-20 07:45:54,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14778219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:54,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:54,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:45:54,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135320403] [2022-03-20 07:45:54,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:54,818 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:45:54,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:54,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:45:54,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:45:54,818 INFO L87 Difference]: Start difference. First operand 720 states and 1061 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:56,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:45:58,491 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 07:45:59,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:45:59,680 INFO L93 Difference]: Finished difference Result 722 states and 1063 transitions. [2022-03-20 07:45:59,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:45:59,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-20 07:45:59,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:45:59,682 INFO L225 Difference]: With dead ends: 722 [2022-03-20 07:45:59,683 INFO L226 Difference]: Without dead ends: 722 [2022-03-20 07:45:59,683 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 07:45:59,683 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:45:59,683 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 07:45:59,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-03-20 07:45:59,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2022-03-20 07:45:59,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 717 states have (on average 1.4769874476987448) internal successors, (1059), 717 states have internal predecessors, (1059), 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 07:45:59,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1063 transitions. [2022-03-20 07:45:59,690 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1063 transitions. Word has length 104 [2022-03-20 07:45:59,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:45:59,690 INFO L478 AbstractCegarLoop]: Abstraction has 722 states and 1063 transitions. [2022-03-20 07:45:59,690 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:45:59,690 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1063 transitions. [2022-03-20 07:45:59,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-03-20 07:45:59,691 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:45:59,691 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:45:59,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 07:45:59,691 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:45:59,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:45:59,692 INFO L85 PathProgramCache]: Analyzing trace with hash -276398424, now seen corresponding path program 1 times [2022-03-20 07:45:59,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:45:59,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113570266] [2022-03-20 07:45:59,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:45:59,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:45:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:59,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:45:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:45:59,811 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:45:59,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:45:59,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113570266] [2022-03-20 07:45:59,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113570266] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:45:59,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:45:59,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:45:59,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195708561] [2022-03-20 07:45:59,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:45:59,813 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:45:59,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:45:59,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:45:59,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:45:59,814 INFO L87 Difference]: Start difference. First operand 722 states and 1063 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:01,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:03,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:05,233 WARN L534 Checker$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 07:46:05,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:05,483 INFO L93 Difference]: Finished difference Result 1058 states and 1566 transitions. [2022-03-20 07:46:05,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:46:05,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-03-20 07:46:05,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:05,486 INFO L225 Difference]: With dead ends: 1058 [2022-03-20 07:46:05,486 INFO L226 Difference]: Without dead ends: 1058 [2022-03-20 07:46:05,486 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 07:46:05,487 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 164 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:05,487 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 379 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 244 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 07:46:05,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-03-20 07:46:05,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1056. [2022-03-20 07:46:05,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1051 states have (on average 1.4852521408182684) internal successors, (1561), 1051 states have internal predecessors, (1561), 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 07:46:05,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1565 transitions. [2022-03-20 07:46:05,508 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1565 transitions. Word has length 106 [2022-03-20 07:46:05,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:05,508 INFO L478 AbstractCegarLoop]: Abstraction has 1056 states and 1565 transitions. [2022-03-20 07:46:05,508 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:05,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1565 transitions. [2022-03-20 07:46:05,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-20 07:46:05,509 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:05,509 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:46:05,509 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 07:46:05,509 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:05,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:05,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1937733360, now seen corresponding path program 1 times [2022-03-20 07:46:05,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:05,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894954682] [2022-03-20 07:46:05,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:05,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:05,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:05,585 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:46:05,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:05,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894954682] [2022-03-20 07:46:05,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894954682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:46:05,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:46:05,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:46:05,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220227600] [2022-03-20 07:46:05,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:46:05,586 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:46:05,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:46:05,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:46:05,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:46:05,587 INFO L87 Difference]: Start difference. First operand 1056 states and 1565 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:08,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:10,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:10,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:10,597 INFO L93 Difference]: Finished difference Result 1392 states and 2054 transitions. [2022-03-20 07:46:10,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:46:10,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-03-20 07:46:10,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:10,601 INFO L225 Difference]: With dead ends: 1392 [2022-03-20 07:46:10,601 INFO L226 Difference]: Without dead ends: 1392 [2022-03-20 07:46:10,601 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 07:46:10,602 INFO L913 BasicCegarLoop]: 382 mSDtfsCounter, 149 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:10,602 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 576 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 427 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 07:46:10,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-03-20 07:46:10,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1390. [2022-03-20 07:46:10,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1385 states have (on average 1.47942238267148) internal successors, (2049), 1385 states have internal predecessors, (2049), 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 07:46:10,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2053 transitions. [2022-03-20 07:46:10,614 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2053 transitions. Word has length 112 [2022-03-20 07:46:10,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:10,614 INFO L478 AbstractCegarLoop]: Abstraction has 1390 states and 2053 transitions. [2022-03-20 07:46:10,615 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:10,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2053 transitions. [2022-03-20 07:46:10,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-03-20 07:46:10,616 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:10,616 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:46:10,616 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 07:46:10,616 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:10,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:10,617 INFO L85 PathProgramCache]: Analyzing trace with hash -2105249294, now seen corresponding path program 1 times [2022-03-20 07:46:10,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:10,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127342071] [2022-03-20 07:46:10,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:10,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:10,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:10,705 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:46:10,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:10,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127342071] [2022-03-20 07:46:10,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127342071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:46:10,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:46:10,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:46:10,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73350615] [2022-03-20 07:46:10,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:46:10,706 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:46:10,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:46:10,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:46:10,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:46:10,706 INFO L87 Difference]: Start difference. First operand 1390 states and 2053 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:11,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:13,733 WARN L534 Checker$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 07:46:15,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:17,785 WARN L534 Checker$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 07:46:18,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:18,207 INFO L93 Difference]: Finished difference Result 1700 states and 2501 transitions. [2022-03-20 07:46:18,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:46:18,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 129 [2022-03-20 07:46:18,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:18,212 INFO L225 Difference]: With dead ends: 1700 [2022-03-20 07:46:18,212 INFO L226 Difference]: Without dead ends: 1700 [2022-03-20 07:46:18,212 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 07:46:18,213 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 109 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:18,213 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 380 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 466 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-03-20 07:46:18,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2022-03-20 07:46:18,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1394. [2022-03-20 07:46:18,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1389 states have (on average 1.4838012958963283) internal successors, (2061), 1389 states have internal predecessors, (2061), 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 07:46:18,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 2065 transitions. [2022-03-20 07:46:18,227 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 2065 transitions. Word has length 129 [2022-03-20 07:46:18,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:18,227 INFO L478 AbstractCegarLoop]: Abstraction has 1394 states and 2065 transitions. [2022-03-20 07:46:18,227 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:18,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 2065 transitions. [2022-03-20 07:46:18,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-20 07:46:18,229 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:18,229 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:46:18,229 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 07:46:18,229 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:18,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:18,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1588802902, now seen corresponding path program 1 times [2022-03-20 07:46:18,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:18,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475418032] [2022-03-20 07:46:18,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:18,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:18,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:18,326 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 07:46:18,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:18,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475418032] [2022-03-20 07:46:18,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475418032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:46:18,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:46:18,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:46:18,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429341879] [2022-03-20 07:46:18,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:46:18,327 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:46:18,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:46:18,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:46:18,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:46:18,327 INFO L87 Difference]: Start difference. First operand 1394 states and 2065 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:19,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:21,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:21,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:21,974 INFO L93 Difference]: Finished difference Result 1731 states and 2565 transitions. [2022-03-20 07:46:21,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:46:21,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-20 07:46:21,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:21,979 INFO L225 Difference]: With dead ends: 1731 [2022-03-20 07:46:21,979 INFO L226 Difference]: Without dead ends: 1731 [2022-03-20 07:46:21,979 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 07:46:21,979 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:21,980 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 07:46:21,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2022-03-20 07:46:21,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1729. [2022-03-20 07:46:21,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1729 states, 1724 states have (on average 1.4849187935034802) internal successors, (2560), 1724 states have internal predecessors, (2560), 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 07:46:21,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 2564 transitions. [2022-03-20 07:46:21,998 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 2564 transitions. Word has length 134 [2022-03-20 07:46:21,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:21,999 INFO L478 AbstractCegarLoop]: Abstraction has 1729 states and 2564 transitions. [2022-03-20 07:46:21,999 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:21,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 2564 transitions. [2022-03-20 07:46:22,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-20 07:46:22,001 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:22,001 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:46:22,001 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 07:46:22,002 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:22,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:22,002 INFO L85 PathProgramCache]: Analyzing trace with hash -2111385345, now seen corresponding path program 1 times [2022-03-20 07:46:22,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:22,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114833797] [2022-03-20 07:46:22,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:22,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:22,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:22,115 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:46:22,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:22,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114833797] [2022-03-20 07:46:22,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114833797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:46:22,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:46:22,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:46:22,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579028084] [2022-03-20 07:46:22,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:46:22,116 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:46:22,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:46:22,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:46:22,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:46:22,116 INFO L87 Difference]: Start difference. First operand 1729 states and 2564 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:24,123 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 07:46:24,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:24,602 INFO L93 Difference]: Finished difference Result 2436 states and 3618 transitions. [2022-03-20 07:46:24,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:46:24,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-20 07:46:24,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:24,608 INFO L225 Difference]: With dead ends: 2436 [2022-03-20 07:46:24,608 INFO L226 Difference]: Without dead ends: 2436 [2022-03-20 07:46:24,608 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 07:46:24,609 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 115 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:24,609 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 378 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:46:24,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2022-03-20 07:46:24,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2049. [2022-03-20 07:46:24,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 2044 states have (on average 1.4921722113502935) internal successors, (3050), 2044 states have internal predecessors, (3050), 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 07:46:24,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 3054 transitions. [2022-03-20 07:46:24,626 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 3054 transitions. Word has length 157 [2022-03-20 07:46:24,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:24,627 INFO L478 AbstractCegarLoop]: Abstraction has 2049 states and 3054 transitions. [2022-03-20 07:46:24,627 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:24,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 3054 transitions. [2022-03-20 07:46:24,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-20 07:46:24,629 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:24,629 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:46:24,630 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 07:46:24,630 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:24,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:24,630 INFO L85 PathProgramCache]: Analyzing trace with hash 2033495211, now seen corresponding path program 1 times [2022-03-20 07:46:24,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:24,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805111512] [2022-03-20 07:46:24,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:24,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:24,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:24,721 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:46:24,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:24,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805111512] [2022-03-20 07:46:24,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805111512] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:46:24,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:46:24,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:46:24,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490936788] [2022-03-20 07:46:24,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:46:24,722 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:46:24,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:46:24,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:46:24,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:46:24,723 INFO L87 Difference]: Start difference. First operand 2049 states and 3054 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 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 07:46:25,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:27,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:29,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:30,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:30,444 INFO L93 Difference]: Finished difference Result 2380 states and 3529 transitions. [2022-03-20 07:46:30,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:46:30,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 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 07:46:30,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:30,450 INFO L225 Difference]: With dead ends: 2380 [2022-03-20 07:46:30,450 INFO L226 Difference]: Without dead ends: 2380 [2022-03-20 07:46:30,450 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 07:46:30,451 INFO L913 BasicCegarLoop]: 268 mSDtfsCounter, 72 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:30,451 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 648 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 07:46:30,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2022-03-20 07:46:30,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 2197. [2022-03-20 07:46:30,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 2192 states have (on average 1.4972627737226278) internal successors, (3282), 2192 states have internal predecessors, (3282), 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 07:46:30,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3286 transitions. [2022-03-20 07:46:30,470 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3286 transitions. Word has length 163 [2022-03-20 07:46:30,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:30,470 INFO L478 AbstractCegarLoop]: Abstraction has 2197 states and 3286 transitions. [2022-03-20 07:46:30,470 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 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 07:46:30,470 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3286 transitions. [2022-03-20 07:46:30,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-20 07:46:30,473 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:30,473 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:46:30,473 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 07:46:30,473 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:30,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:30,473 INFO L85 PathProgramCache]: Analyzing trace with hash 809864280, now seen corresponding path program 1 times [2022-03-20 07:46:30,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:30,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046240239] [2022-03-20 07:46:30,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:30,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:30,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:30,574 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:46:30,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:30,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046240239] [2022-03-20 07:46:30,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046240239] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:46:30,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:46:30,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:46:30,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189714289] [2022-03-20 07:46:30,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:46:30,575 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:46:30,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:46:30,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:46:30,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:46:30,576 INFO L87 Difference]: Start difference. First operand 2197 states and 3286 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 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 07:46:33,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:34,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:35,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:36,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:36,066 INFO L93 Difference]: Finished difference Result 2524 states and 3720 transitions. [2022-03-20 07:46:36,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:46:36,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 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 07:46:36,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:36,071 INFO L225 Difference]: With dead ends: 2524 [2022-03-20 07:46:36,071 INFO L226 Difference]: Without dead ends: 2524 [2022-03-20 07:46:36,071 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 07:46:36,073 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 110 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:36,073 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 366 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 07:46:36,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2022-03-20 07:46:36,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 2197. [2022-03-20 07:46:36,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 2192 states have (on average 1.4927007299270072) internal successors, (3272), 2192 states have internal predecessors, (3272), 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 07:46:36,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3276 transitions. [2022-03-20 07:46:36,092 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3276 transitions. Word has length 164 [2022-03-20 07:46:36,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:36,092 INFO L478 AbstractCegarLoop]: Abstraction has 2197 states and 3276 transitions. [2022-03-20 07:46:36,119 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 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 07:46:36,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3276 transitions. [2022-03-20 07:46:36,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 07:46:36,121 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:36,122 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:46:36,122 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 07:46:36,122 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:36,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:36,122 INFO L85 PathProgramCache]: Analyzing trace with hash 243838419, now seen corresponding path program 1 times [2022-03-20 07:46:36,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:36,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835823907] [2022-03-20 07:46:36,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:36,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:36,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:36,459 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-20 07:46:36,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:36,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835823907] [2022-03-20 07:46:36,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835823907] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:46:36,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:46:36,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 07:46:36,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994827807] [2022-03-20 07:46:36,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:46:36,460 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 07:46:36,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:46:36,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 07:46:36,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 07:46:36,460 INFO L87 Difference]: Start difference. First operand 2197 states and 3276 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:37,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:39,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:40,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:41,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:43,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:46:44,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:46:44,504 INFO L93 Difference]: Finished difference Result 2205 states and 3286 transitions. [2022-03-20 07:46:44,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 07:46:44,504 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-03-20 07:46:44,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:46:44,509 INFO L225 Difference]: With dead ends: 2205 [2022-03-20 07:46:44,509 INFO L226 Difference]: Without dead ends: 2197 [2022-03-20 07:46:44,509 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-20 07:46:44,510 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:46:44,510 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 443 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-03-20 07:46:44,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2022-03-20 07:46:44,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 2197. [2022-03-20 07:46:44,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 2192 states have (on average 1.4922445255474452) internal successors, (3271), 2192 states have internal predecessors, (3271), 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 07:46:44,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3275 transitions. [2022-03-20 07:46:44,527 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3275 transitions. Word has length 171 [2022-03-20 07:46:44,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:46:44,527 INFO L478 AbstractCegarLoop]: Abstraction has 2197 states and 3275 transitions. [2022-03-20 07:46:44,527 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:46:44,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3275 transitions. [2022-03-20 07:46:44,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 07:46:44,529 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:46:44,529 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:46:44,529 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 07:46:44,530 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:46:44,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:46:44,530 INFO L85 PathProgramCache]: Analyzing trace with hash -717786796, now seen corresponding path program 1 times [2022-03-20 07:46:44,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:46:44,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588767079] [2022-03-20 07:46:44,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:44,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:46:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:45,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:46:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:45,320 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 146 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:46:45,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:46:45,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588767079] [2022-03-20 07:46:45,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588767079] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:46:45,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988557799] [2022-03-20 07:46:45,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:46:45,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:46:45,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:46:45,323 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 07:46:45,328 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 07:46:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:46:46,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 190 conjunts are in the unsatisfiable core [2022-03-20 07:46:46,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:46:46,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:46,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:46,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:46,655 INFO L356 Elim1Store]: treesize reduction 1040, result has 8.0 percent of original size [2022-03-20 07:46:46,658 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 45941213 treesize of output 9986154 [2022-03-20 07:46:47,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:47,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:56,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:46:57,171 INFO L244 Elim1Store]: Index analysis took 335 ms [2022-03-20 07:51:36,169 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-20 07:51:36,191 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 07:51:36,370 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,SelfDestructingSolverStorable36 [2022-03-20 07:51:36,371 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 312591 column 7: canceled at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:186) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:166) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:154) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:126) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:110) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:95) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:90) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:904) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:865) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:783) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:425) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 312591 column 7: canceled at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:197) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:264) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:184) ... 56 more [2022-03-20 07:51:36,375 INFO L158 Benchmark]: Toolchain (without parser) took 479560.24ms. Allocated memory was 174.1MB in the beginning and 6.4GB in the end (delta: 6.3GB). Free memory was 121.0MB in the beginning and 3.2GB in the end (delta: -3.1GB). Peak memory consumption was 6.5GB. Max. memory is 8.0GB. [2022-03-20 07:51:36,375 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 174.1MB. Free memory was 139.6MB in the beginning and 139.4MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 07:51:36,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.17ms. Allocated memory is still 174.1MB. Free memory was 120.7MB in the beginning and 128.7MB in the end (delta: -8.0MB). Peak memory consumption was 14.4MB. Max. memory is 8.0GB. [2022-03-20 07:51:36,375 INFO L158 Benchmark]: Boogie Preprocessor took 98.82ms. Allocated memory is still 174.1MB. Free memory was 128.7MB in the beginning and 120.9MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-20 07:51:36,375 INFO L158 Benchmark]: RCFGBuilder took 1345.18ms. Allocated memory was 174.1MB in the beginning and 233.8MB in the end (delta: 59.8MB). Free memory was 120.9MB in the beginning and 161.4MB in the end (delta: -40.5MB). Peak memory consumption was 37.1MB. Max. memory is 8.0GB. [2022-03-20 07:51:36,375 INFO L158 Benchmark]: IcfgTransformer took 76.02ms. Allocated memory is still 233.8MB. Free memory was 161.4MB in the beginning and 156.1MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-03-20 07:51:36,375 INFO L158 Benchmark]: TraceAbstraction took 477609.21ms. Allocated memory was 233.8MB in the beginning and 6.4GB in the end (delta: 6.2GB). Free memory was 155.6MB in the beginning and 3.2GB in the end (delta: -3.1GB). Peak memory consumption was 6.4GB. Max. memory is 8.0GB. [2022-03-20 07:51:36,376 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 174.1MB. Free memory was 139.6MB in the beginning and 139.4MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 427.17ms. Allocated memory is still 174.1MB. Free memory was 120.7MB in the beginning and 128.7MB in the end (delta: -8.0MB). Peak memory consumption was 14.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 98.82ms. Allocated memory is still 174.1MB. Free memory was 128.7MB in the beginning and 120.9MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1345.18ms. Allocated memory was 174.1MB in the beginning and 233.8MB in the end (delta: 59.8MB). Free memory was 120.9MB in the beginning and 161.4MB in the end (delta: -40.5MB). Peak memory consumption was 37.1MB. Max. memory is 8.0GB. * IcfgTransformer took 76.02ms. Allocated memory is still 233.8MB. Free memory was 161.4MB in the beginning and 156.1MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * TraceAbstraction took 477609.21ms. Allocated memory was 233.8MB in the beginning and 6.4GB in the end (delta: 6.2GB). Free memory was 155.6MB in the beginning and 3.2GB in the end (delta: -3.1GB). Peak memory consumption was 6.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 312591 column 7: canceled de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 312591 column 7: canceled: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:186) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-03-20 07:51:36,586 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-03-20 07:51:36,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...