/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_clnt.blast.02.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 19:56:35,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 19:56:35,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 19:56:35,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 19:56:35,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 19:56:35,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 19:56:35,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 19:56:35,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 19:56:35,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 19:56:35,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 19:56:35,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 19:56:35,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 19:56:35,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 19:56:35,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 19:56:35,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 19:56:35,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 19:56:35,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 19:56:35,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 19:56:35,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 19:56:35,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 19:56:35,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 19:56:35,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 19:56:35,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 19:56:35,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 19:56:35,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-23 19:56:35,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-23 19:56:35,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-23 19:56:35,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-23 19:56:35,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-23 19:56:35,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-23 19:56:35,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-23 19:56:35,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-23 19:56:35,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-23 19:56:35,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-23 19:56:35,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-23 19:56:35,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-23 19:56:35,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-23 19:56:35,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-23 19:56:35,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 19:56:35,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 19:56:35,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 19:56:35,090 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-23 19:56:35,096 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 19:56:35,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 19:56:35,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 19:56:35,097 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-23 19:56:35,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 19:56:35,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-23 19:56:35,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 19:56:35,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 19:56:35,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 19:56:35,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 19:56:35,098 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-23 19:56:35,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 19:56:35,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 19:56:35,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 19:56:35,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 19:56:35,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 19:56:35,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-23 19:56:35,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 19:56:35,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 19:56:35,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 19:56:35,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 19:56:35,099 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 19:56:35,099 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 19:56:35,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 19:56:35,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 19:56:35,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 19:56:35,265 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 19:56:35,266 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 19:56:35,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c [2022-02-23 19:56:35,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fbf22e2e/5a453077c6bc4d1aaa386dc0543e0aa2/FLAGbc29ad2ab [2022-02-23 19:56:35,804 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 19:56:35,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c [2022-02-23 19:56:35,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fbf22e2e/5a453077c6bc4d1aaa386dc0543e0aa2/FLAGbc29ad2ab [2022-02-23 19:56:36,104 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fbf22e2e/5a453077c6bc4d1aaa386dc0543e0aa2 [2022-02-23 19:56:36,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 19:56:36,109 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 19:56:36,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 19:56:36,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 19:56:36,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 19:56:36,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:56:36" (1/1) ... [2022-02-23 19:56:36,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ba40c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:56:36, skipping insertion in model container [2022-02-23 19:56:36,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:56:36" (1/1) ... [2022-02-23 19:56:36,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 19:56:36,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 19:56:36,428 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c[65398,65411] [2022-02-23 19:56:36,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 19:56:36,462 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 19:56:36,536 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c[65398,65411] [2022-02-23 19:56:36,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 19:56:36,550 INFO L208 MainTranslator]: Completed translation [2022-02-23 19:56:36,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:56:36 WrapperNode [2022-02-23 19:56:36,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 19:56:36,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 19:56:36,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 19:56:36,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 19:56:36,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:56:36" (1/1) ... [2022-02-23 19:56:36,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:56:36" (1/1) ... [2022-02-23 19:56:36,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:56:36" (1/1) ... [2022-02-23 19:56:36,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:56:36" (1/1) ... [2022-02-23 19:56:36,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:56:36" (1/1) ... [2022-02-23 19:56:36,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:56:36" (1/1) ... [2022-02-23 19:56:36,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:56:36" (1/1) ... [2022-02-23 19:56:36,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 19:56:36,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 19:56:36,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 19:56:36,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 19:56:36,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:56:36" (1/1) ... [2022-02-23 19:56:36,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 19:56:36,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:56:36,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-23 19:56:36,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-23 19:56:36,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 19:56:36,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 19:56:36,679 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 19:56:36,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-02-23 19:56:36,680 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-02-23 19:56:36,680 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 19:56:36,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-02-23 19:56:36,680 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-23 19:56:36,680 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-23 19:56:36,680 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-23 19:56:36,680 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 19:56:36,680 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 19:56:36,681 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 19:56:36,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 19:56:36,681 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-23 19:56:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-23 19:56:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 19:56:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-23 19:56:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-23 19:56:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-23 19:56:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-02-23 19:56:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-23 19:56:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-02-23 19:56:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-02-23 19:56:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-23 19:56:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-23 19:56:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 19:56:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-23 19:56:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 19:56:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-23 19:56:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 19:56:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-23 19:56:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-23 19:56:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 19:56:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 19:56:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 19:56:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-23 19:56:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-23 19:56:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-23 19:56:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-23 19:56:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 19:56:36,863 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 19:56:36,864 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 19:56:38,148 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 19:56:38,444 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-02-23 19:56:38,444 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-02-23 19:56:38,466 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 19:56:38,474 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 19:56:38,475 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 19:56:38,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:56:38 BoogieIcfgContainer [2022-02-23 19:56:38,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 19:56:38,478 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 19:56:38,478 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 19:56:38,479 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 19:56:38,481 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:56:38" (1/1) ... [2022-02-23 19:56:38,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 07:56:38 BasicIcfg [2022-02-23 19:56:38,526 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 19:56:38,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 19:56:38,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 19:56:38,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 19:56:38,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 07:56:36" (1/4) ... [2022-02-23 19:56:38,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e44e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:56:38, skipping insertion in model container [2022-02-23 19:56:38,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:56:36" (2/4) ... [2022-02-23 19:56:38,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e44e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:56:38, skipping insertion in model container [2022-02-23 19:56:38,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:56:38" (3/4) ... [2022-02-23 19:56:38,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e44e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 07:56:38, skipping insertion in model container [2022-02-23 19:56:38,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 07:56:38" (4/4) ... [2022-02-23 19:56:38,535 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.02.i.cil-2.cJordan [2022-02-23 19:56:38,540 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-23 19:56:38,540 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 19:56:38,587 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 19:56:38,593 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-23 19:56:38,594 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 19:56:38,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-23 19:56:38,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-23 19:56:38,629 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:56:38,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:56:38,630 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:56:38,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:56:38,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1711753218, now seen corresponding path program 1 times [2022-02-23 19:56:38,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:56:38,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353184290] [2022-02-23 19:56:38,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:56:38,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:56:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:56:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:39,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:56:39,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:56:39,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353184290] [2022-02-23 19:56:39,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353184290] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:56:39,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:56:39,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:56:39,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775850233] [2022-02-23 19:56:39,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:56:39,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:56:39,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:56:39,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:56:39,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:56:39,204 INFO L87 Difference]: Start difference. First operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:41,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:56:41,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:56:41,658 INFO L93 Difference]: Finished difference Result 142 states and 227 transitions. [2022-02-23 19:56:41,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:56:41,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-02-23 19:56:41,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:56:41,669 INFO L225 Difference]: With dead ends: 142 [2022-02-23 19:56:41,670 INFO L226 Difference]: Without dead ends: 122 [2022-02-23 19:56:41,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:56:41,676 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:56:41,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:56:41,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-02-23 19:56:41,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-02-23 19:56:41,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 116 states have (on average 1.5) internal successors, (174), 116 states have internal predecessors, (174), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:41,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-02-23 19:56:41,725 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-02-23 19:56:41,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:56:41,726 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-02-23 19:56:41,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:41,726 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-02-23 19:56:41,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-02-23 19:56:41,729 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:56:41,729 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:56:41,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 19:56:41,730 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:56:41,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:56:41,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1339052155, now seen corresponding path program 1 times [2022-02-23 19:56:41,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:56:41,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719111743] [2022-02-23 19:56:41,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:56:41,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:56:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:41,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:56:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:41,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:56:41,963 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:56:41,963 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719111743] [2022-02-23 19:56:41,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719111743] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:56:41,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:56:41,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:56:41,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423920795] [2022-02-23 19:56:41,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:56:41,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:56:41,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:56:41,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:56:41,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:56:41,974 INFO L87 Difference]: Start difference. First operand 121 states and 178 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:43,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:56:44,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:56:44,271 INFO L93 Difference]: Finished difference Result 221 states and 325 transitions. [2022-02-23 19:56:44,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:56:44,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-02-23 19:56:44,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:56:44,273 INFO L225 Difference]: With dead ends: 221 [2022-02-23 19:56:44,273 INFO L226 Difference]: Without dead ends: 221 [2022-02-23 19:56:44,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:56:44,274 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 123 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:56:44,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 320 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:56:44,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-02-23 19:56:44,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2022-02-23 19:56:44,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 216 states have (on average 1.4861111111111112) internal successors, (321), 216 states have internal predecessors, (321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:44,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 325 transitions. [2022-02-23 19:56:44,285 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 325 transitions. Word has length 44 [2022-02-23 19:56:44,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:56:44,285 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 325 transitions. [2022-02-23 19:56:44,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:44,285 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 325 transitions. [2022-02-23 19:56:44,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-23 19:56:44,286 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:56:44,286 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:56:44,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-23 19:56:44,287 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:56:44,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:56:44,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1096281917, now seen corresponding path program 1 times [2022-02-23 19:56:44,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:56:44,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504952491] [2022-02-23 19:56:44,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:56:44,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:56:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:44,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:56:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:44,517 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:56:44,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:56:44,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504952491] [2022-02-23 19:56:44,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504952491] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:56:44,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:56:44,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:56:44,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118172506] [2022-02-23 19:56:44,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:56:44,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:56:44,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:56:44,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:56:44,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:56:44,520 INFO L87 Difference]: Start difference. First operand 221 states and 325 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:46,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:56:46,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:56:46,965 INFO L93 Difference]: Finished difference Result 257 states and 379 transitions. [2022-02-23 19:56:46,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:56:46,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-02-23 19:56:46,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:56:46,966 INFO L225 Difference]: With dead ends: 257 [2022-02-23 19:56:46,966 INFO L226 Difference]: Without dead ends: 257 [2022-02-23 19:56:46,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:56:46,967 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 33 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:56:46,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 484 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:56:46,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-02-23 19:56:46,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 239. [2022-02-23 19:56:46,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.5) internal successors, (351), 234 states have internal predecessors, (351), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:46,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 355 transitions. [2022-02-23 19:56:46,976 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 355 transitions. Word has length 59 [2022-02-23 19:56:46,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:56:46,976 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 355 transitions. [2022-02-23 19:56:46,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:46,976 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 355 transitions. [2022-02-23 19:56:46,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-23 19:56:46,978 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:56:46,978 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:56:46,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-23 19:56:46,978 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:56:46,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:56:46,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1707240826, now seen corresponding path program 2 times [2022-02-23 19:56:46,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:56:46,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176294934] [2022-02-23 19:56:46,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:56:46,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:56:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:47,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:56:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:47,136 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:56:47,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:56:47,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176294934] [2022-02-23 19:56:47,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176294934] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:56:47,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:56:47,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:56:47,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522771248] [2022-02-23 19:56:47,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:56:47,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:56:47,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:56:47,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:56:47,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:56:47,138 INFO L87 Difference]: Start difference. First operand 239 states and 355 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:49,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:56:49,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:56:49,567 INFO L93 Difference]: Finished difference Result 256 states and 377 transitions. [2022-02-23 19:56:49,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:56:49,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-02-23 19:56:49,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:56:49,569 INFO L225 Difference]: With dead ends: 256 [2022-02-23 19:56:49,570 INFO L226 Difference]: Without dead ends: 256 [2022-02-23 19:56:49,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:56:49,570 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 39 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:56:49,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 484 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:56:49,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-02-23 19:56:49,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 239. [2022-02-23 19:56:49,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.4957264957264957) internal successors, (350), 234 states have internal predecessors, (350), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:49,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 354 transitions. [2022-02-23 19:56:49,578 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 354 transitions. Word has length 73 [2022-02-23 19:56:49,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:56:49,578 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 354 transitions. [2022-02-23 19:56:49,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:49,578 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 354 transitions. [2022-02-23 19:56:49,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-23 19:56:49,580 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:56:49,580 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:56:49,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-23 19:56:49,580 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:56:49,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:56:49,580 INFO L85 PathProgramCache]: Analyzing trace with hash 2069356890, now seen corresponding path program 1 times [2022-02-23 19:56:49,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:56:49,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457472560] [2022-02-23 19:56:49,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:56:49,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:56:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:49,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:56:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:49,786 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:56:49,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:56:49,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457472560] [2022-02-23 19:56:49,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457472560] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:56:49,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:56:49,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:56:49,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010569922] [2022-02-23 19:56:49,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:56:49,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:56:49,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:56:49,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:56:49,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:56:49,789 INFO L87 Difference]: Start difference. First operand 239 states and 354 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:51,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:56:52,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:56:52,205 INFO L93 Difference]: Finished difference Result 421 states and 626 transitions. [2022-02-23 19:56:52,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:56:52,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-02-23 19:56:52,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:56:52,207 INFO L225 Difference]: With dead ends: 421 [2022-02-23 19:56:52,207 INFO L226 Difference]: Without dead ends: 421 [2022-02-23 19:56:52,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:56:52,208 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 119 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:56:52,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:56:52,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-02-23 19:56:52,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 263. [2022-02-23 19:56:52,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 258 states have (on average 1.4922480620155039) internal successors, (385), 258 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:52,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 389 transitions. [2022-02-23 19:56:52,223 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 389 transitions. Word has length 73 [2022-02-23 19:56:52,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:56:52,223 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 389 transitions. [2022-02-23 19:56:52,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:52,223 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 389 transitions. [2022-02-23 19:56:52,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-23 19:56:52,227 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:56:52,228 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:56:52,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-23 19:56:52,228 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:56:52,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:56:52,228 INFO L85 PathProgramCache]: Analyzing trace with hash -841732619, now seen corresponding path program 1 times [2022-02-23 19:56:52,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:56:52,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393663173] [2022-02-23 19:56:52,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:56:52,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:56:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:52,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:56:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:52,392 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:56:52,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:56:52,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393663173] [2022-02-23 19:56:52,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393663173] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:56:52,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:56:52,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:56:52,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705419242] [2022-02-23 19:56:52,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:56:52,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:56:52,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:56:52,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:56:52,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:56:52,395 INFO L87 Difference]: Start difference. First operand 263 states and 389 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:54,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:56:54,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:56:54,809 INFO L93 Difference]: Finished difference Result 421 states and 623 transitions. [2022-02-23 19:56:54,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:56:54,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-02-23 19:56:54,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:56:54,811 INFO L225 Difference]: With dead ends: 421 [2022-02-23 19:56:54,812 INFO L226 Difference]: Without dead ends: 421 [2022-02-23 19:56:54,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:56:54,812 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 117 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:56:54,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 300 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:56:54,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-02-23 19:56:54,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 265. [2022-02-23 19:56:54,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 260 states have (on average 1.4846153846153847) internal successors, (386), 260 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:54,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 390 transitions. [2022-02-23 19:56:54,819 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 390 transitions. Word has length 74 [2022-02-23 19:56:54,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:56:54,820 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 390 transitions. [2022-02-23 19:56:54,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:54,820 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 390 transitions. [2022-02-23 19:56:54,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-23 19:56:54,821 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:56:54,821 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:56:54,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-23 19:56:54,821 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:56:54,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:56:54,821 INFO L85 PathProgramCache]: Analyzing trace with hash -845929674, now seen corresponding path program 1 times [2022-02-23 19:56:54,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:56:54,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884529223] [2022-02-23 19:56:54,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:56:54,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:56:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:54,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:56:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:54,993 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:56:54,993 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:56:54,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884529223] [2022-02-23 19:56:54,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884529223] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:56:54,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:56:54,993 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:56:54,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484593079] [2022-02-23 19:56:54,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:56:54,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:56:54,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:56:54,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:56:54,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:56:54,995 INFO L87 Difference]: Start difference. First operand 265 states and 390 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:57,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:56:57,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:56:57,366 INFO L93 Difference]: Finished difference Result 282 states and 412 transitions. [2022-02-23 19:56:57,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:56:57,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-02-23 19:56:57,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:56:57,368 INFO L225 Difference]: With dead ends: 282 [2022-02-23 19:56:57,368 INFO L226 Difference]: Without dead ends: 282 [2022-02-23 19:56:57,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:56:57,369 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 33 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:56:57,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 478 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 349 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:56:57,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-02-23 19:56:57,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 265. [2022-02-23 19:56:57,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 260 states have (on average 1.4807692307692308) internal successors, (385), 260 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:57,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 389 transitions. [2022-02-23 19:56:57,374 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 389 transitions. Word has length 75 [2022-02-23 19:56:57,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:56:57,374 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 389 transitions. [2022-02-23 19:56:57,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:57,375 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 389 transitions. [2022-02-23 19:56:57,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-23 19:56:57,375 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:56:57,375 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:56:57,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-23 19:56:57,376 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:56:57,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:56:57,376 INFO L85 PathProgramCache]: Analyzing trace with hash -942089998, now seen corresponding path program 1 times [2022-02-23 19:56:57,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:56:57,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719621272] [2022-02-23 19:56:57,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:56:57,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:56:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:57,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:56:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:56:57,511 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:56:57,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:56:57,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719621272] [2022-02-23 19:56:57,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719621272] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:56:57,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:56:57,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:56:57,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758944797] [2022-02-23 19:56:57,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:56:57,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:56:57,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:56:57,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:56:57,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:56:57,513 INFO L87 Difference]: Start difference. First operand 265 states and 389 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:59,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:56:59,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:56:59,886 INFO L93 Difference]: Finished difference Result 421 states and 619 transitions. [2022-02-23 19:56:59,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:56:59,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2022-02-23 19:56:59,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:56:59,888 INFO L225 Difference]: With dead ends: 421 [2022-02-23 19:56:59,888 INFO L226 Difference]: Without dead ends: 421 [2022-02-23 19:56:59,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:56:59,889 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 114 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:56:59,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:56:59,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-02-23 19:56:59,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 269. [2022-02-23 19:56:59,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 264 states have (on average 1.4772727272727273) internal successors, (390), 264 states have internal predecessors, (390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:59,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 394 transitions. [2022-02-23 19:56:59,895 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 394 transitions. Word has length 76 [2022-02-23 19:56:59,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:56:59,895 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 394 transitions. [2022-02-23 19:56:59,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:56:59,895 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 394 transitions. [2022-02-23 19:56:59,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-23 19:56:59,896 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:56:59,896 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:56:59,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-23 19:56:59,896 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:56:59,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:56:59,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1179030540, now seen corresponding path program 1 times [2022-02-23 19:56:59,896 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:56:59,896 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976128943] [2022-02-23 19:56:59,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:56:59,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:56:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:00,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:00,060 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-02-23 19:57:00,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:00,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976128943] [2022-02-23 19:57:00,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976128943] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:00,061 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:00,061 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:57:00,061 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832377212] [2022-02-23 19:57:00,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:00,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:57:00,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:00,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:57:00,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:57:00,063 INFO L87 Difference]: Start difference. First operand 269 states and 394 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:02,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:02,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:02,446 INFO L93 Difference]: Finished difference Result 404 states and 591 transitions. [2022-02-23 19:57:02,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:57:02,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-02-23 19:57:02,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:02,448 INFO L225 Difference]: With dead ends: 404 [2022-02-23 19:57:02,448 INFO L226 Difference]: Without dead ends: 404 [2022-02-23 19:57:02,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:57:02,449 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:02,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 477 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:57:02,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-02-23 19:57:02,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2022-02-23 19:57:02,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.4711779448621554) internal successors, (587), 399 states have internal predecessors, (587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:02,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 591 transitions. [2022-02-23 19:57:02,455 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 591 transitions. Word has length 77 [2022-02-23 19:57:02,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:02,456 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 591 transitions. [2022-02-23 19:57:02,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:02,456 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 591 transitions. [2022-02-23 19:57:02,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-23 19:57:02,456 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:02,457 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:02,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-23 19:57:02,457 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:02,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:02,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1210050347, now seen corresponding path program 1 times [2022-02-23 19:57:02,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:02,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934639381] [2022-02-23 19:57:02,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:02,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:02,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:02,563 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:57:02,563 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:02,563 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934639381] [2022-02-23 19:57:02,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934639381] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:02,563 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:02,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:57:02,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101030703] [2022-02-23 19:57:02,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:02,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:57:02,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:02,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:57:02,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:57:02,564 INFO L87 Difference]: Start difference. First operand 404 states and 591 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:04,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:04,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:04,816 INFO L93 Difference]: Finished difference Result 429 states and 624 transitions. [2022-02-23 19:57:04,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:57:04,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-02-23 19:57:04,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:04,818 INFO L225 Difference]: With dead ends: 429 [2022-02-23 19:57:04,818 INFO L226 Difference]: Without dead ends: 429 [2022-02-23 19:57:04,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:57:04,818 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 16 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:04,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 358 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-23 19:57:04,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-02-23 19:57:04,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2022-02-23 19:57:04,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.4622641509433962) internal successors, (620), 424 states have internal predecessors, (620), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:04,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 624 transitions. [2022-02-23 19:57:04,825 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 624 transitions. Word has length 77 [2022-02-23 19:57:04,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:04,826 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 624 transitions. [2022-02-23 19:57:04,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:04,826 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 624 transitions. [2022-02-23 19:57:04,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-23 19:57:04,827 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:04,827 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:04,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-23 19:57:04,828 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:04,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:04,828 INFO L85 PathProgramCache]: Analyzing trace with hash 464067919, now seen corresponding path program 1 times [2022-02-23 19:57:04,829 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:04,829 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103842355] [2022-02-23 19:57:04,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:04,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:04,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:04,979 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-23 19:57:04,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:04,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103842355] [2022-02-23 19:57:05,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103842355] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:05,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:05,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:57:05,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345044934] [2022-02-23 19:57:05,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:05,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:57:05,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:05,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:57:05,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:57:05,004 INFO L87 Difference]: Start difference. First operand 429 states and 624 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:07,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:07,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:07,401 INFO L93 Difference]: Finished difference Result 563 states and 820 transitions. [2022-02-23 19:57:07,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:57:07,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-02-23 19:57:07,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:07,403 INFO L225 Difference]: With dead ends: 563 [2022-02-23 19:57:07,404 INFO L226 Difference]: Without dead ends: 563 [2022-02-23 19:57:07,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:57:07,404 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:07,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 476 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:57:07,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-02-23 19:57:07,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2022-02-23 19:57:07,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 558 states have (on average 1.4623655913978495) internal successors, (816), 558 states have internal predecessors, (816), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:07,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 820 transitions. [2022-02-23 19:57:07,413 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 820 transitions. Word has length 97 [2022-02-23 19:57:07,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:07,414 INFO L470 AbstractCegarLoop]: Abstraction has 563 states and 820 transitions. [2022-02-23 19:57:07,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:07,414 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 820 transitions. [2022-02-23 19:57:07,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-23 19:57:07,415 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:07,415 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:07,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-23 19:57:07,415 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:07,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:07,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1668406687, now seen corresponding path program 1 times [2022-02-23 19:57:07,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:07,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490706158] [2022-02-23 19:57:07,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:07,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:07,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:07,549 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-02-23 19:57:07,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:07,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490706158] [2022-02-23 19:57:07,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490706158] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:07,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:07,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:57:07,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744883603] [2022-02-23 19:57:07,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:07,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:57:07,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:07,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:57:07,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:57:07,550 INFO L87 Difference]: Start difference. First operand 563 states and 820 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:09,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:09,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:09,945 INFO L93 Difference]: Finished difference Result 679 states and 990 transitions. [2022-02-23 19:57:09,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:57:09,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-02-23 19:57:09,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:09,948 INFO L225 Difference]: With dead ends: 679 [2022-02-23 19:57:09,948 INFO L226 Difference]: Without dead ends: 679 [2022-02-23 19:57:09,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:57:09,948 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 125 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:09,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 475 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:57:09,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-02-23 19:57:09,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2022-02-23 19:57:09,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 674 states have (on average 1.4629080118694362) internal successors, (986), 674 states have internal predecessors, (986), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:09,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 990 transitions. [2022-02-23 19:57:09,958 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 990 transitions. Word has length 118 [2022-02-23 19:57:09,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:09,958 INFO L470 AbstractCegarLoop]: Abstraction has 679 states and 990 transitions. [2022-02-23 19:57:09,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 990 transitions. [2022-02-23 19:57:09,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-02-23 19:57:09,962 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:09,962 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:09,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-23 19:57:09,962 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:09,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:09,963 INFO L85 PathProgramCache]: Analyzing trace with hash -65774092, now seen corresponding path program 1 times [2022-02-23 19:57:09,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:09,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394929099] [2022-02-23 19:57:09,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:09,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:10,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:10,180 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-02-23 19:57:10,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:10,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394929099] [2022-02-23 19:57:10,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394929099] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:10,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:10,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:57:10,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088482062] [2022-02-23 19:57:10,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:10,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:57:10,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:10,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:57:10,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:57:10,181 INFO L87 Difference]: Start difference. First operand 679 states and 990 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:12,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:12,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:12,551 INFO L93 Difference]: Finished difference Result 1137 states and 1653 transitions. [2022-02-23 19:57:12,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:57:12,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-02-23 19:57:12,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:12,555 INFO L225 Difference]: With dead ends: 1137 [2022-02-23 19:57:12,555 INFO L226 Difference]: Without dead ends: 1137 [2022-02-23 19:57:12,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:57:12,556 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 109 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:12,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 280 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:57:12,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2022-02-23 19:57:12,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 784. [2022-02-23 19:57:12,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 779 states have (on average 1.4711168164313222) internal successors, (1146), 779 states have internal predecessors, (1146), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:12,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1150 transitions. [2022-02-23 19:57:12,569 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1150 transitions. Word has length 152 [2022-02-23 19:57:12,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:12,569 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1150 transitions. [2022-02-23 19:57:12,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:12,569 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1150 transitions. [2022-02-23 19:57:12,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-02-23 19:57:12,570 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:12,571 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:12,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-23 19:57:12,571 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:12,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:12,571 INFO L85 PathProgramCache]: Analyzing trace with hash 449746357, now seen corresponding path program 1 times [2022-02-23 19:57:12,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:12,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123857075] [2022-02-23 19:57:12,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:12,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:12,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:12,725 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-02-23 19:57:12,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:12,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123857075] [2022-02-23 19:57:12,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123857075] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:12,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:12,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:57:12,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893041117] [2022-02-23 19:57:12,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:12,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:57:12,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:12,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:57:12,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:57:12,727 INFO L87 Difference]: Start difference. First operand 784 states and 1150 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:14,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:15,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:15,220 INFO L93 Difference]: Finished difference Result 1149 states and 1676 transitions. [2022-02-23 19:57:15,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:57:15,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-02-23 19:57:15,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:15,223 INFO L225 Difference]: With dead ends: 1149 [2022-02-23 19:57:15,224 INFO L226 Difference]: Without dead ends: 1149 [2022-02-23 19:57:15,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:57:15,224 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 101 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:15,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 571 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 545 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 19:57:15,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2022-02-23 19:57:15,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 848. [2022-02-23 19:57:15,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 843 states have (on average 1.468564650059312) internal successors, (1238), 843 states have internal predecessors, (1238), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:15,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1242 transitions. [2022-02-23 19:57:15,237 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1242 transitions. Word has length 152 [2022-02-23 19:57:15,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:15,238 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 1242 transitions. [2022-02-23 19:57:15,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:15,238 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1242 transitions. [2022-02-23 19:57:15,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-23 19:57:15,239 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:15,239 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:15,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-23 19:57:15,239 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:15,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:15,240 INFO L85 PathProgramCache]: Analyzing trace with hash 52767334, now seen corresponding path program 1 times [2022-02-23 19:57:15,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:15,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428652759] [2022-02-23 19:57:15,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:15,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:15,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:15,427 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-02-23 19:57:15,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:15,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428652759] [2022-02-23 19:57:15,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428652759] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:15,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:15,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:57:15,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156690522] [2022-02-23 19:57:15,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:15,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:57:15,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:15,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:57:15,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:57:15,429 INFO L87 Difference]: Start difference. First operand 848 states and 1242 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:17,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:17,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:17,861 INFO L93 Difference]: Finished difference Result 1326 states and 1936 transitions. [2022-02-23 19:57:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:57:17,861 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 153 [2022-02-23 19:57:17,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:17,865 INFO L225 Difference]: With dead ends: 1326 [2022-02-23 19:57:17,865 INFO L226 Difference]: Without dead ends: 1326 [2022-02-23 19:57:17,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:57:17,866 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 111 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:17,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 506 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:57:17,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-02-23 19:57:17,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 943. [2022-02-23 19:57:17,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 938 states have (on average 1.464818763326226) internal successors, (1374), 938 states have internal predecessors, (1374), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:17,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1378 transitions. [2022-02-23 19:57:17,879 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1378 transitions. Word has length 153 [2022-02-23 19:57:17,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:17,880 INFO L470 AbstractCegarLoop]: Abstraction has 943 states and 1378 transitions. [2022-02-23 19:57:17,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:17,880 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1378 transitions. [2022-02-23 19:57:17,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-02-23 19:57:17,882 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:17,882 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:17,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-23 19:57:17,882 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:17,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:17,882 INFO L85 PathProgramCache]: Analyzing trace with hash -413691918, now seen corresponding path program 2 times [2022-02-23 19:57:17,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:17,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43680493] [2022-02-23 19:57:17,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:17,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:18,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:18,034 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-02-23 19:57:18,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:18,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43680493] [2022-02-23 19:57:18,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43680493] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:18,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:18,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:57:18,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976314730] [2022-02-23 19:57:18,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:18,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:57:18,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:18,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:57:18,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:57:18,037 INFO L87 Difference]: Start difference. First operand 943 states and 1378 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:20,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:20,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:20,509 INFO L93 Difference]: Finished difference Result 1226 states and 1784 transitions. [2022-02-23 19:57:20,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:57:20,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-02-23 19:57:20,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:20,512 INFO L225 Difference]: With dead ends: 1226 [2022-02-23 19:57:20,513 INFO L226 Difference]: Without dead ends: 1226 [2022-02-23 19:57:20,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:57:20,513 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 100 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:20,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 561 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 19:57:20,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2022-02-23 19:57:20,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 943. [2022-02-23 19:57:20,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 938 states have (on average 1.4605543710021323) internal successors, (1370), 938 states have internal predecessors, (1370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:20,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1374 transitions. [2022-02-23 19:57:20,526 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1374 transitions. Word has length 166 [2022-02-23 19:57:20,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:20,526 INFO L470 AbstractCegarLoop]: Abstraction has 943 states and 1374 transitions. [2022-02-23 19:57:20,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:20,526 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1374 transitions. [2022-02-23 19:57:20,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-23 19:57:20,528 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:20,528 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:20,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-23 19:57:20,528 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:20,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:20,529 INFO L85 PathProgramCache]: Analyzing trace with hash -811458194, now seen corresponding path program 1 times [2022-02-23 19:57:20,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:20,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529393585] [2022-02-23 19:57:20,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:20,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:20,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:20,676 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-02-23 19:57:20,676 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:20,676 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529393585] [2022-02-23 19:57:20,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529393585] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:20,676 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:20,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:57:20,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742215219] [2022-02-23 19:57:20,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:20,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:57:20,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:20,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:57:20,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:57:20,678 INFO L87 Difference]: Start difference. First operand 943 states and 1374 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:22,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:24,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:26,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:28,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:28,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:28,585 INFO L93 Difference]: Finished difference Result 1190 states and 1736 transitions. [2022-02-23 19:57:28,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:57:28,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-02-23 19:57:28,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:28,588 INFO L225 Difference]: With dead ends: 1190 [2022-02-23 19:57:28,588 INFO L226 Difference]: Without dead ends: 1190 [2022-02-23 19:57:28,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:57:28,589 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 89 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:28,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 547 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 507 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-02-23 19:57:28,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2022-02-23 19:57:28,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 943. [2022-02-23 19:57:28,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 938 states have (on average 1.4562899786780383) internal successors, (1366), 938 states have internal predecessors, (1366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:28,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1370 transitions. [2022-02-23 19:57:28,601 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1370 transitions. Word has length 168 [2022-02-23 19:57:28,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:28,601 INFO L470 AbstractCegarLoop]: Abstraction has 943 states and 1370 transitions. [2022-02-23 19:57:28,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:28,602 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1370 transitions. [2022-02-23 19:57:28,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-02-23 19:57:28,603 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:28,603 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:28,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-23 19:57:28,604 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:28,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:28,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1010941213, now seen corresponding path program 3 times [2022-02-23 19:57:28,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:28,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359286922] [2022-02-23 19:57:28,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:28,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:28,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:28,806 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 294 proven. 1 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-02-23 19:57:28,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:28,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359286922] [2022-02-23 19:57:28,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359286922] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:57:28,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93356142] [2022-02-23 19:57:28,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-23 19:57:28,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:57:28,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:57:28,808 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) [2022-02-23 19:57:28,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-23 19:58:03,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-23 19:58:03,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-23 19:58:03,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-23 19:58:03,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:58:03,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-23 19:58:03,595 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 19:58:03,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-23 19:58:03,645 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 19:58:03,662 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-02-23 19:58:03,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 19:58:03,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93356142] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:03,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 19:58:03,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-02-23 19:58:03,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695997592] [2022-02-23 19:58:03,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:03,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:58:03,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:03,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:58:03,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-23 19:58:03,664 INFO L87 Difference]: Start difference. First operand 943 states and 1370 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:05,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:05,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:05,961 INFO L93 Difference]: Finished difference Result 1396 states and 2018 transitions. [2022-02-23 19:58:05,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:58:05,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 170 [2022-02-23 19:58:05,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:05,965 INFO L225 Difference]: With dead ends: 1396 [2022-02-23 19:58:05,965 INFO L226 Difference]: Without dead ends: 1396 [2022-02-23 19:58:05,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-02-23 19:58:05,966 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 100 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:05,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 551 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 240 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:58:05,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2022-02-23 19:58:05,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1063. [2022-02-23 19:58:05,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 1058 states have (on average 1.4659735349716445) internal successors, (1551), 1058 states have internal predecessors, (1551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:05,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1555 transitions. [2022-02-23 19:58:05,980 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1555 transitions. Word has length 170 [2022-02-23 19:58:05,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:05,980 INFO L470 AbstractCegarLoop]: Abstraction has 1063 states and 1555 transitions. [2022-02-23 19:58:05,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:05,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1555 transitions. [2022-02-23 19:58:05,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-02-23 19:58:05,982 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:05,982 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:06,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-23 19:58:06,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-02-23 19:58:06,196 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:06,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:06,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1077947966, now seen corresponding path program 4 times [2022-02-23 19:58:06,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:06,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357525942] [2022-02-23 19:58:06,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:06,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:06,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:06,406 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 294 proven. 1 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-02-23 19:58:06,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:06,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357525942] [2022-02-23 19:58:06,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357525942] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:58:06,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515343937] [2022-02-23 19:58:06,407 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-23 19:58:06,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:58:06,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:58:06,408 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:58:06,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-23 19:58:07,127 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-23 19:58:07,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-23 19:58:07,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-23 19:58:07,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:58:07,205 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-23 19:58:07,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-02-23 19:58:07,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-02-23 19:58:07,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-23 19:58:07,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-23 19:58:07,453 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-02-23 19:58:07,454 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 21 [2022-02-23 19:58:07,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-02-23 19:58:07,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-02-23 19:58:07,534 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 19:58:07,534 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 19:58:07,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-23 19:58:07,716 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 19:58:07,716 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-23 19:58:07,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 19:58:07,780 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 91 proven. 70 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-02-23 19:58:07,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 19:58:08,001 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-02-23 19:58:08,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515343937] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 19:58:08,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 19:58:08,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-02-23 19:58:08,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322298618] [2022-02-23 19:58:08,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:08,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:58:08,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:08,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:58:08,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-23 19:58:08,002 INFO L87 Difference]: Start difference. First operand 1063 states and 1555 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:10,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:10,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:10,264 INFO L93 Difference]: Finished difference Result 1536 states and 2238 transitions. [2022-02-23 19:58:10,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:58:10,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 170 [2022-02-23 19:58:10,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:10,268 INFO L225 Difference]: With dead ends: 1536 [2022-02-23 19:58:10,268 INFO L226 Difference]: Without dead ends: 1536 [2022-02-23 19:58:10,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-23 19:58:10,269 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 96 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:10,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 318 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 216 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-23 19:58:10,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2022-02-23 19:58:10,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1083. [2022-02-23 19:58:10,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.471243042671614) internal successors, (1586), 1078 states have internal predecessors, (1586), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:10,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1590 transitions. [2022-02-23 19:58:10,303 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1590 transitions. Word has length 170 [2022-02-23 19:58:10,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:10,303 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1590 transitions. [2022-02-23 19:58:10,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:10,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1590 transitions. [2022-02-23 19:58:10,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-23 19:58:10,305 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:10,305 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:10,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-23 19:58:10,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:58:10,519 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:10,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:10,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1273457422, now seen corresponding path program 1 times [2022-02-23 19:58:10,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:10,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226719087] [2022-02-23 19:58:10,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:10,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:10,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:10,689 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 294 proven. 1 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-02-23 19:58:10,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:10,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226719087] [2022-02-23 19:58:10,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226719087] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:58:10,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691071205] [2022-02-23 19:58:10,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:10,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:58:10,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:58:10,690 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:58:10,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-23 19:58:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:11,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 1531 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-23 19:58:11,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:58:11,478 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-23 19:58:11,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-02-23 19:58:11,485 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-02-23 19:58:11,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-23 19:58:11,499 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-23 19:58:11,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2022-02-23 19:58:11,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-02-23 19:58:11,634 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 19:58:11,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 19:58:11,715 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 19:58:11,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 19:58:11,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 19:58:11,829 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 256 proven. 40 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-02-23 19:58:11,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 19:58:12,090 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-02-23 19:58:12,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691071205] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 19:58:12,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 19:58:12,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-02-23 19:58:12,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893299995] [2022-02-23 19:58:12,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:12,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:58:12,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:12,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:58:12,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-23 19:58:12,091 INFO L87 Difference]: Start difference. First operand 1083 states and 1590 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:14,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:14,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:14,351 INFO L93 Difference]: Finished difference Result 1436 states and 2078 transitions. [2022-02-23 19:58:14,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:58:14,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-02-23 19:58:14,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:14,355 INFO L225 Difference]: With dead ends: 1436 [2022-02-23 19:58:14,356 INFO L226 Difference]: Without dead ends: 1436 [2022-02-23 19:58:14,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-23 19:58:14,356 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 108 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:14,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 290 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-23 19:58:14,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2022-02-23 19:58:14,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1083. [2022-02-23 19:58:14,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4573283858998145) internal successors, (1571), 1078 states have internal predecessors, (1571), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:14,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1575 transitions. [2022-02-23 19:58:14,370 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1575 transitions. Word has length 171 [2022-02-23 19:58:14,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:14,371 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1575 transitions. [2022-02-23 19:58:14,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:14,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1575 transitions. [2022-02-23 19:58:14,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-02-23 19:58:14,373 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:14,373 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:14,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-23 19:58:14,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:58:14,582 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:14,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:14,583 INFO L85 PathProgramCache]: Analyzing trace with hash -251034012, now seen corresponding path program 1 times [2022-02-23 19:58:14,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:14,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625646421] [2022-02-23 19:58:14,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:14,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:14,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:14,752 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 295 proven. 1 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-02-23 19:58:14,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:14,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625646421] [2022-02-23 19:58:14,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625646421] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:58:14,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508370118] [2022-02-23 19:58:14,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:14,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:58:14,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:58:14,756 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:58:14,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-23 19:58:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:15,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 1534 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-23 19:58:15,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:58:15,611 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-23 19:58:15,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-02-23 19:58:15,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-02-23 19:58:15,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-23 19:58:15,627 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-23 19:58:15,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2022-02-23 19:58:15,753 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-02-23 19:58:15,791 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 19:58:15,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 19:58:15,878 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 19:58:15,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 19:58:15,920 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 19:58:15,999 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 259 proven. 40 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-02-23 19:58:15,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 19:58:16,221 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-02-23 19:58:16,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508370118] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 19:58:16,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 19:58:16,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-02-23 19:58:16,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448335201] [2022-02-23 19:58:16,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:16,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:58:16,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:16,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:58:16,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-23 19:58:16,223 INFO L87 Difference]: Start difference. First operand 1083 states and 1575 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:18,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:18,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:18,465 INFO L93 Difference]: Finished difference Result 1428 states and 2053 transitions. [2022-02-23 19:58:18,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:58:18,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-02-23 19:58:18,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:18,469 INFO L225 Difference]: With dead ends: 1428 [2022-02-23 19:58:18,469 INFO L226 Difference]: Without dead ends: 1428 [2022-02-23 19:58:18,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-23 19:58:18,470 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 109 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:18,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 284 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-23 19:58:18,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2022-02-23 19:58:18,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1083. [2022-02-23 19:58:18,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.443413729128015) internal successors, (1556), 1078 states have internal predecessors, (1556), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:18,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1560 transitions. [2022-02-23 19:58:18,484 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1560 transitions. Word has length 172 [2022-02-23 19:58:18,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:18,484 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1560 transitions. [2022-02-23 19:58:18,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:18,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1560 transitions. [2022-02-23 19:58:18,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-02-23 19:58:18,486 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:18,486 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 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] [2022-02-23 19:58:18,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-23 19:58:18,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:58:18,691 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:18,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:18,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1563134140, now seen corresponding path program 1 times [2022-02-23 19:58:18,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:18,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376976641] [2022-02-23 19:58:18,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:18,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:18,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:18,839 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-02-23 19:58:18,839 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:18,839 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376976641] [2022-02-23 19:58:18,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376976641] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:18,839 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:58:18,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:58:18,839 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737130722] [2022-02-23 19:58:18,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:18,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:58:18,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:18,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:58:18,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:58:18,840 INFO L87 Difference]: Start difference. First operand 1083 states and 1560 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:20,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:21,238 INFO L93 Difference]: Finished difference Result 1428 states and 2043 transitions. [2022-02-23 19:58:21,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:58:21,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-02-23 19:58:21,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:21,243 INFO L225 Difference]: With dead ends: 1428 [2022-02-23 19:58:21,244 INFO L226 Difference]: Without dead ends: 1428 [2022-02-23 19:58:21,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:58:21,244 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 106 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:21,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 282 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:58:21,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2022-02-23 19:58:21,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1088. [2022-02-23 19:58:21,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1083 states have (on average 1.4367497691597415) internal successors, (1556), 1083 states have internal predecessors, (1556), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:21,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1560 transitions. [2022-02-23 19:58:21,258 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1560 transitions. Word has length 172 [2022-02-23 19:58:21,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:21,258 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1560 transitions. [2022-02-23 19:58:21,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:21,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1560 transitions. [2022-02-23 19:58:21,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-02-23 19:58:21,260 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:21,260 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:21,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-23 19:58:21,260 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:21,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:21,261 INFO L85 PathProgramCache]: Analyzing trace with hash -179683901, now seen corresponding path program 1 times [2022-02-23 19:58:21,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:21,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162464236] [2022-02-23 19:58:21,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:21,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:21,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:21,434 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 245 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-02-23 19:58:21,434 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:21,435 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162464236] [2022-02-23 19:58:21,435 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162464236] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:58:21,435 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126876681] [2022-02-23 19:58:21,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:21,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:58:21,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:58:21,440 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:58:21,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-23 19:58:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:22,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-23 19:58:22,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:58:22,331 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-23 19:58:22,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-02-23 19:58:22,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-02-23 19:58:22,342 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-23 19:58:22,349 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-23 19:58:22,480 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-02-23 19:58:22,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-02-23 19:58:22,522 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 19:58:22,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 19:58:22,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-23 19:58:22,658 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 19:58:22,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-23 19:58:22,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 19:58:22,707 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 98 proven. 70 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-02-23 19:58:22,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 19:58:22,892 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-02-23 19:58:22,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126876681] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 19:58:22,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 19:58:22,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-02-23 19:58:22,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43105141] [2022-02-23 19:58:22,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:22,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:58:22,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:22,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:58:22,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-23 19:58:22,894 INFO L87 Difference]: Start difference. First operand 1088 states and 1560 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:24,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:25,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:25,169 INFO L93 Difference]: Finished difference Result 1622 states and 2312 transitions. [2022-02-23 19:58:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:58:25,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-02-23 19:58:25,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:25,173 INFO L225 Difference]: With dead ends: 1622 [2022-02-23 19:58:25,174 INFO L226 Difference]: Without dead ends: 1622 [2022-02-23 19:58:25,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-23 19:58:25,174 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 86 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:25,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 523 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 221 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:58:25,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-02-23 19:58:25,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1338. [2022-02-23 19:58:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1333 states have (on average 1.433608402100525) internal successors, (1911), 1333 states have internal predecessors, (1911), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:25,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1915 transitions. [2022-02-23 19:58:25,189 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1915 transitions. Word has length 175 [2022-02-23 19:58:25,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:25,190 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 1915 transitions. [2022-02-23 19:58:25,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:25,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1915 transitions. [2022-02-23 19:58:25,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-02-23 19:58:25,192 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:25,192 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:25,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-23 19:58:25,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-02-23 19:58:25,408 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:25,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:25,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2038074052, now seen corresponding path program 1 times [2022-02-23 19:58:25,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:25,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727722517] [2022-02-23 19:58:25,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:25,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:25,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:25,613 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-02-23 19:58:25,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:25,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727722517] [2022-02-23 19:58:25,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727722517] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:25,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:58:25,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:58:25,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126570768] [2022-02-23 19:58:25,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:25,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:58:25,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:25,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:58:25,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:58:25,614 INFO L87 Difference]: Start difference. First operand 1338 states and 1915 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:27,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:27,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:27,958 INFO L93 Difference]: Finished difference Result 1430 states and 2020 transitions. [2022-02-23 19:58:27,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:58:27,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-02-23 19:58:27,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:27,969 INFO L225 Difference]: With dead ends: 1430 [2022-02-23 19:58:27,969 INFO L226 Difference]: Without dead ends: 1430 [2022-02-23 19:58:27,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:58:27,970 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 30 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:27,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 477 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:58:27,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2022-02-23 19:58:27,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1338. [2022-02-23 19:58:27,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1333 states have (on average 1.4298574643660915) internal successors, (1906), 1333 states have internal predecessors, (1906), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:27,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1910 transitions. [2022-02-23 19:58:27,984 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1910 transitions. Word has length 175 [2022-02-23 19:58:27,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:27,984 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 1910 transitions. [2022-02-23 19:58:27,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:27,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1910 transitions. [2022-02-23 19:58:27,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-02-23 19:58:27,986 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:27,986 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:27,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-23 19:58:27,986 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:27,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:27,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1203351578, now seen corresponding path program 2 times [2022-02-23 19:58:27,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:27,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811088652] [2022-02-23 19:58:27,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:27,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:28,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:28,215 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 298 proven. 1 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-02-23 19:58:28,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:28,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811088652] [2022-02-23 19:58:28,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811088652] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:58:28,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599806649] [2022-02-23 19:58:28,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-23 19:58:28,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:58:28,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:58:28,216 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:58:28,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-23 19:58:45,994 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-23 19:58:45,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-23 19:58:46,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 1691 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-23 19:58:46,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:58:46,064 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-23 19:58:46,064 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-02-23 19:58:46,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-02-23 19:58:46,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-23 19:58:46,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-23 19:58:46,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2022-02-23 19:58:46,162 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3