/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-7390193 [2022-04-05 04:15:24,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 04:15:24,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 04:15:24,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 04:15:24,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 04:15:24,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 04:15:24,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 04:15:24,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 04:15:24,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 04:15:24,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 04:15:24,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 04:15:24,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 04:15:24,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 04:15:24,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 04:15:24,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 04:15:24,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 04:15:24,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 04:15:24,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 04:15:24,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 04:15:24,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 04:15:24,944 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 04:15:24,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 04:15:24,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 04:15:24,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 04:15:24,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 04:15:24,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 04:15:24,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 04:15:24,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 04:15:24,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 04:15:24,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 04:15:24,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-04-05 04:15:24,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 04:15:24,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 04:15:24,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 04:15:24,985 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 04:15:25,007 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 04:15:25,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 04:15:25,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 04:15:25,008 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 04:15:25,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 04:15:25,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 04:15:25,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 04:15:25,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 04:15:25,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 04:15:25,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 04:15:25,010 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 04:15:25,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 04:15:25,010 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 04:15:25,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 04:15:25,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 04:15:25,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 04:15:25,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 04:15:25,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 04:15:25,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:15:25,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 04:15:25,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 04:15:25,012 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 04:15:25,012 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 04:15:25,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 04:15:25,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 04:15:25,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 04:15:25,385 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 04:15:25,397 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 04:15:25,398 INFO L432 ainManager$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 [2022-04-05 04:15:25,488 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5c6a78a/73dc8ee3e87e4c14a7a65b3d8f657bfe/FLAGd62f399a0 [2022-04-05 04:15:26,099 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 04:15:26,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c [2022-04-05 04:15:26,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5c6a78a/73dc8ee3e87e4c14a7a65b3d8f657bfe/FLAGd62f399a0 [2022-04-05 04:15:26,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5c6a78a/73dc8ee3e87e4c14a7a65b3d8f657bfe [2022-04-05 04:15:26,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 04:15:26,500 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 04:15:26,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 04:15:26,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 04:15:26,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 04:15:26,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:15:26" (1/1) ... [2022-04-05 04:15:26,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245f9efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:26, skipping insertion in model container [2022-04-05 04:15:26,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:15:26" (1/1) ... [2022-04-05 04:15:26,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 04:15:26,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 04:15:26,869 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] [2022-04-05 04:15:26,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:15:26,884 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 04:15:26,959 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] [2022-04-05 04:15:26,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:15:26,981 INFO L208 MainTranslator]: Completed translation [2022-04-05 04:15:26,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:26 WrapperNode [2022-04-05 04:15:26,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 04:15:26,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 04:15:26,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 04:15:26,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 04:15:26,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:26" (1/1) ... [2022-04-05 04:15:26,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:26" (1/1) ... [2022-04-05 04:15:27,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:26" (1/1) ... [2022-04-05 04:15:27,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:26" (1/1) ... [2022-04-05 04:15:27,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:26" (1/1) ... [2022-04-05 04:15:27,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:26" (1/1) ... [2022-04-05 04:15:27,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:26" (1/1) ... [2022-04-05 04:15:27,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 04:15:27,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 04:15:27,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 04:15:27,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 04:15:27,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:26" (1/1) ... [2022-04-05 04:15:27,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:15:27,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:15:27,157 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) [2022-04-05 04:15:27,175 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 [2022-04-05 04:15:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 04:15:27,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 04:15:27,192 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 04:15:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-04-05 04:15:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-04-05 04:15:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 04:15:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-04-05 04:15:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-05 04:15:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-05 04:15:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-05 04:15:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 04:15:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 04:15:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 04:15:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 04:15:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-05 04:15:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 04:15:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 04:15:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 04:15:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-05 04:15:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-05 04:15:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-04-05 04:15:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-05 04:15:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-04-05 04:15:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-04-05 04:15:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-05 04:15:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-05 04:15:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 04:15:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-05 04:15:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 04:15:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-05 04:15:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 04:15:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-05 04:15:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-05 04:15:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 04:15:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 04:15:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 04:15:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-05 04:15:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-05 04:15:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-05 04:15:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-05 04:15:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 04:15:27,353 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 04:15:27,354 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 04:15:28,473 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:15:28,799 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-04-05 04:15:28,799 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-04-05 04:15:28,808 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 04:15:28,813 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 04:15:28,813 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 04:15:28,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:15:28 BoogieIcfgContainer [2022-04-05 04:15:28,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 04:15:28,815 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 04:15:28,815 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 04:15:28,816 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 04:15:28,818 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:15:28" (1/1) ... [2022-04-05 04:15:28,819 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 04:15:28,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:15:28 BasicIcfg [2022-04-05 04:15:28,846 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 04:15:28,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 04:15:28,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 04:15:28,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 04:15:28,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:15:26" (1/4) ... [2022-04-05 04:15:28,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a27254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:15:28, skipping insertion in model container [2022-04-05 04:15:28,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:26" (2/4) ... [2022-04-05 04:15:28,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a27254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:15:28, skipping insertion in model container [2022-04-05 04:15:28,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:15:28" (3/4) ... [2022-04-05 04:15:28,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a27254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 04:15:28, skipping insertion in model container [2022-04-05 04:15:28,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:15:28" (4/4) ... [2022-04-05 04:15:28,851 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.02.i.cil-2.cJordan [2022-04-05 04:15:28,854 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 04:15:28,854 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 04:15:28,881 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 04:15:28,885 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-05 04:15:28,885 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 04:15:28,906 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) [2022-04-05 04:15:28,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-05 04:15:28,912 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:28,913 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:28,913 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:28,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:28,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1711753218, now seen corresponding path program 1 times [2022-04-05 04:15:28,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:28,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996760647] [2022-04-05 04:15:28,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:28,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:29,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:29,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:15:29,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:29,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996760647] [2022-04-05 04:15:29,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996760647] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:29,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:29,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:29,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619031393] [2022-04-05 04:15:29,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:29,513 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:29,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:29,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:29,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:29,540 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) [2022-04-05 04:15:31,571 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 [] [2022-04-05 04:15:31,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:31,927 INFO L93 Difference]: Finished difference Result 142 states and 227 transitions. [2022-04-05 04:15:31,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:15:31,929 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 [2022-04-05 04:15:31,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:31,936 INFO L225 Difference]: With dead ends: 142 [2022-04-05 04:15:31,936 INFO L226 Difference]: Without dead ends: 122 [2022-04-05 04:15:31,937 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:15:31,939 INFO L913 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, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:31,939 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:15:31,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-04-05 04:15:31,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-04-05 04:15:31,979 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) [2022-04-05 04:15:31,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-04-05 04:15:31,989 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-04-05 04:15:31,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:31,990 INFO L478 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-04-05 04:15:31,990 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:31,990 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-04-05 04:15:31,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-04-05 04:15:31,993 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:31,994 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:31,994 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 04:15:31,995 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:31,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:31,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1339052155, now seen corresponding path program 1 times [2022-04-05 04:15:31,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:31,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840950496] [2022-04-05 04:15:31,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:31,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:32,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:32,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:15:32,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:32,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840950496] [2022-04-05 04:15:32,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840950496] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:32,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:32,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:15:32,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897240919] [2022-04-05 04:15:32,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:32,224 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:15:32,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:32,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:15:32,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:32,225 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) [2022-04-05 04:15:34,237 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 [] [2022-04-05 04:15:34,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:34,527 INFO L93 Difference]: Finished difference Result 221 states and 325 transitions. [2022-04-05 04:15:34,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:15:34,528 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 [2022-04-05 04:15:34,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:34,529 INFO L225 Difference]: With dead ends: 221 [2022-04-05 04:15:34,529 INFO L226 Difference]: Without dead ends: 221 [2022-04-05 04:15:34,529 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:34,530 INFO L913 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 [2022-04-05 04:15:34,530 INFO L914 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] [2022-04-05 04:15:34,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-04-05 04:15:34,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2022-04-05 04:15:34,541 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) [2022-04-05 04:15:34,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 325 transitions. [2022-04-05 04:15:34,542 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 325 transitions. Word has length 44 [2022-04-05 04:15:34,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:34,542 INFO L478 AbstractCegarLoop]: Abstraction has 221 states and 325 transitions. [2022-04-05 04:15:34,542 INFO L479 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) [2022-04-05 04:15:34,542 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 325 transitions. [2022-04-05 04:15:34,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-04-05 04:15:34,544 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:34,544 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:34,544 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 04:15:34,544 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:34,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:34,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1096281917, now seen corresponding path program 1 times [2022-04-05 04:15:34,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:34,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131453688] [2022-04-05 04:15:34,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:34,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:34,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:34,768 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:15:34,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:34,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131453688] [2022-04-05 04:15:34,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131453688] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:34,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:34,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:34,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849299609] [2022-04-05 04:15:34,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:34,769 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:34,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:34,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:34,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:34,770 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) [2022-04-05 04:15:36,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:15:37,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:37,371 INFO L93 Difference]: Finished difference Result 257 states and 379 transitions. [2022-04-05 04:15:37,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:15:37,371 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 [2022-04-05 04:15:37,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:37,373 INFO L225 Difference]: With dead ends: 257 [2022-04-05 04:15:37,373 INFO L226 Difference]: Without dead ends: 257 [2022-04-05 04:15:37,373 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:15:37,374 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 33 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:37,374 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 484 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-04-05 04:15:37,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-04-05 04:15:37,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 239. [2022-04-05 04:15:37,388 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) [2022-04-05 04:15:37,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 355 transitions. [2022-04-05 04:15:37,389 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 355 transitions. Word has length 59 [2022-04-05 04:15:37,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:37,389 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 355 transitions. [2022-04-05 04:15:37,389 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:37,389 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 355 transitions. [2022-04-05 04:15:37,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-04-05 04:15:37,391 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:37,391 INFO L499 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] [2022-04-05 04:15:37,393 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 04:15:37,393 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:37,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:37,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1707240826, now seen corresponding path program 2 times [2022-04-05 04:15:37,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:37,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988807250] [2022-04-05 04:15:37,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:37,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:37,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:37,633 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:15:37,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:37,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988807250] [2022-04-05 04:15:37,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988807250] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:37,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:37,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:37,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431189156] [2022-04-05 04:15:37,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:37,637 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:37,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:37,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:37,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:37,638 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) [2022-04-05 04:15:39,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:15:40,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:40,155 INFO L93 Difference]: Finished difference Result 256 states and 377 transitions. [2022-04-05 04:15:40,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:15:40,156 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 [2022-04-05 04:15:40,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:40,157 INFO L225 Difference]: With dead ends: 256 [2022-04-05 04:15:40,157 INFO L226 Difference]: Without dead ends: 256 [2022-04-05 04:15:40,157 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:15:40,158 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 39 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:40,158 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 484 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:15:40,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-04-05 04:15:40,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 239. [2022-04-05 04:15:40,179 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) [2022-04-05 04:15:40,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 354 transitions. [2022-04-05 04:15:40,180 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 354 transitions. Word has length 73 [2022-04-05 04:15:40,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:40,180 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 354 transitions. [2022-04-05 04:15:40,181 INFO L479 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) [2022-04-05 04:15:40,181 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 354 transitions. [2022-04-05 04:15:40,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-04-05 04:15:40,182 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:40,182 INFO L499 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] [2022-04-05 04:15:40,183 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 04:15:40,183 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:40,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:40,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2069356890, now seen corresponding path program 1 times [2022-04-05 04:15:40,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:40,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716041549] [2022-04-05 04:15:40,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:40,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:40,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:15:40,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:40,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716041549] [2022-04-05 04:15:40,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716041549] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:40,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:40,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:40,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683206524] [2022-04-05 04:15:40,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:40,395 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:40,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:40,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:40,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:40,396 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) [2022-04-05 04:15:42,415 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 [] [2022-04-05 04:15:42,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:42,791 INFO L93 Difference]: Finished difference Result 421 states and 626 transitions. [2022-04-05 04:15:42,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:15:42,792 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 [2022-04-05 04:15:42,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:42,793 INFO L225 Difference]: With dead ends: 421 [2022-04-05 04:15:42,793 INFO L226 Difference]: Without dead ends: 421 [2022-04-05 04:15:42,793 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:15:42,794 INFO L913 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 [2022-04-05 04:15:42,794 INFO L914 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] [2022-04-05 04:15:42,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-04-05 04:15:42,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 263. [2022-04-05 04:15:42,808 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) [2022-04-05 04:15:42,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 389 transitions. [2022-04-05 04:15:42,809 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 389 transitions. Word has length 73 [2022-04-05 04:15:42,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:42,809 INFO L478 AbstractCegarLoop]: Abstraction has 263 states and 389 transitions. [2022-04-05 04:15:42,809 INFO L479 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) [2022-04-05 04:15:42,809 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 389 transitions. [2022-04-05 04:15:42,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-04-05 04:15:42,811 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:42,817 INFO L499 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] [2022-04-05 04:15:42,817 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 04:15:42,817 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:42,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:42,817 INFO L85 PathProgramCache]: Analyzing trace with hash -841732619, now seen corresponding path program 1 times [2022-04-05 04:15:42,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:42,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253037006] [2022-04-05 04:15:42,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:42,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:42,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:42,947 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:15:42,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:42,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253037006] [2022-04-05 04:15:42,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253037006] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:42,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:42,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:42,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074428293] [2022-04-05 04:15:42,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:42,948 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:42,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:42,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:42,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:42,948 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) [2022-04-05 04:15:44,969 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 [] [2022-04-05 04:15:45,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:45,313 INFO L93 Difference]: Finished difference Result 421 states and 623 transitions. [2022-04-05 04:15:45,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:15:45,314 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 [2022-04-05 04:15:45,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:45,315 INFO L225 Difference]: With dead ends: 421 [2022-04-05 04:15:45,315 INFO L226 Difference]: Without dead ends: 421 [2022-04-05 04:15:45,316 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:15:45,316 INFO L913 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, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:45,316 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 300 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:15:45,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-04-05 04:15:45,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 265. [2022-04-05 04:15:45,322 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) [2022-04-05 04:15:45,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 390 transitions. [2022-04-05 04:15:45,323 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 390 transitions. Word has length 74 [2022-04-05 04:15:45,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:45,323 INFO L478 AbstractCegarLoop]: Abstraction has 265 states and 390 transitions. [2022-04-05 04:15:45,323 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:45,324 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 390 transitions. [2022-04-05 04:15:45,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-04-05 04:15:45,325 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:45,325 INFO L499 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] [2022-04-05 04:15:45,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 04:15:45,325 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:45,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:45,326 INFO L85 PathProgramCache]: Analyzing trace with hash -845929674, now seen corresponding path program 1 times [2022-04-05 04:15:45,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:45,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166740755] [2022-04-05 04:15:45,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:45,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:45,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:45,505 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:15:45,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:45,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166740755] [2022-04-05 04:15:45,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166740755] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:45,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:45,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:45,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998579161] [2022-04-05 04:15:45,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:45,506 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:45,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:45,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:45,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:45,507 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) [2022-04-05 04:15:47,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:15:48,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:48,023 INFO L93 Difference]: Finished difference Result 282 states and 412 transitions. [2022-04-05 04:15:48,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:15:48,023 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 [2022-04-05 04:15:48,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:48,024 INFO L225 Difference]: With dead ends: 282 [2022-04-05 04:15:48,024 INFO L226 Difference]: Without dead ends: 282 [2022-04-05 04:15:48,025 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:15:48,025 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 33 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:48,025 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 478 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 349 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:15:48,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-04-05 04:15:48,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 265. [2022-04-05 04:15:48,029 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) [2022-04-05 04:15:48,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 389 transitions. [2022-04-05 04:15:48,030 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 389 transitions. Word has length 75 [2022-04-05 04:15:48,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:48,030 INFO L478 AbstractCegarLoop]: Abstraction has 265 states and 389 transitions. [2022-04-05 04:15:48,030 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:48,030 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 389 transitions. [2022-04-05 04:15:48,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-04-05 04:15:48,035 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:48,035 INFO L499 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] [2022-04-05 04:15:48,035 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 04:15:48,035 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:48,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:48,036 INFO L85 PathProgramCache]: Analyzing trace with hash -942089998, now seen corresponding path program 1 times [2022-04-05 04:15:48,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:48,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160429551] [2022-04-05 04:15:48,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:48,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:48,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:48,411 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:15:48,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:48,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160429551] [2022-04-05 04:15:48,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160429551] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:48,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:48,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:48,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539551302] [2022-04-05 04:15:48,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:48,411 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:48,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:48,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:48,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:48,412 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) [2022-04-05 04:15:50,420 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 [] [2022-04-05 04:15:50,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:50,851 INFO L93 Difference]: Finished difference Result 421 states and 619 transitions. [2022-04-05 04:15:50,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:15:50,852 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 [2022-04-05 04:15:50,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:50,853 INFO L225 Difference]: With dead ends: 421 [2022-04-05 04:15:50,853 INFO L226 Difference]: Without dead ends: 421 [2022-04-05 04:15:50,854 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:15:50,854 INFO L913 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, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:50,854 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:15:50,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-04-05 04:15:50,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 269. [2022-04-05 04:15:50,858 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) [2022-04-05 04:15:50,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 394 transitions. [2022-04-05 04:15:50,861 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 394 transitions. Word has length 76 [2022-04-05 04:15:50,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:50,861 INFO L478 AbstractCegarLoop]: Abstraction has 269 states and 394 transitions. [2022-04-05 04:15:50,861 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:50,861 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 394 transitions. [2022-04-05 04:15:50,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-04-05 04:15:50,862 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:50,863 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:50,863 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 04:15:50,863 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:50,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:50,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1179030540, now seen corresponding path program 1 times [2022-04-05 04:15:50,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:50,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363043575] [2022-04-05 04:15:50,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:50,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:51,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:51,141 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-05 04:15:51,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:51,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363043575] [2022-04-05 04:15:51,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363043575] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:51,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:51,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:15:51,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987168740] [2022-04-05 04:15:51,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:51,142 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:15:51,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:51,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:15:51,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:51,143 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) [2022-04-05 04:15:53,159 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 [] [2022-04-05 04:15:53,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:53,513 INFO L93 Difference]: Finished difference Result 404 states and 591 transitions. [2022-04-05 04:15:53,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:15:53,514 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 [2022-04-05 04:15:53,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:53,515 INFO L225 Difference]: With dead ends: 404 [2022-04-05 04:15:53,516 INFO L226 Difference]: Without dead ends: 404 [2022-04-05 04:15:53,516 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:53,516 INFO L913 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 [2022-04-05 04:15:53,516 INFO L914 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] [2022-04-05 04:15:53,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-04-05 04:15:53,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2022-04-05 04:15:53,522 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) [2022-04-05 04:15:53,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 591 transitions. [2022-04-05 04:15:53,523 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 591 transitions. Word has length 77 [2022-04-05 04:15:53,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:53,525 INFO L478 AbstractCegarLoop]: Abstraction has 404 states and 591 transitions. [2022-04-05 04:15:53,525 INFO L479 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) [2022-04-05 04:15:53,525 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 591 transitions. [2022-04-05 04:15:53,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-04-05 04:15:53,526 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:53,526 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:53,526 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 04:15:53,526 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:53,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:53,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1210050347, now seen corresponding path program 1 times [2022-04-05 04:15:53,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:53,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563514231] [2022-04-05 04:15:53,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:53,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:53,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:53,644 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:15:53,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:53,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563514231] [2022-04-05 04:15:53,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563514231] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:53,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:53,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:15:53,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787638546] [2022-04-05 04:15:53,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:53,645 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:15:53,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:53,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:15:53,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:53,645 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) [2022-04-05 04:15:55,653 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 [] [2022-04-05 04:15:55,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:55,854 INFO L93 Difference]: Finished difference Result 429 states and 624 transitions. [2022-04-05 04:15:55,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:15:55,854 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 [2022-04-05 04:15:55,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:55,855 INFO L225 Difference]: With dead ends: 429 [2022-04-05 04:15:55,856 INFO L226 Difference]: Without dead ends: 429 [2022-04-05 04:15:55,856 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:55,856 INFO L913 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 [2022-04-05 04:15:55,856 INFO L914 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] [2022-04-05 04:15:55,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-04-05 04:15:55,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2022-04-05 04:15:55,863 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) [2022-04-05 04:15:55,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 624 transitions. [2022-04-05 04:15:55,865 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 624 transitions. Word has length 77 [2022-04-05 04:15:55,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:55,865 INFO L478 AbstractCegarLoop]: Abstraction has 429 states and 624 transitions. [2022-04-05 04:15:55,865 INFO L479 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) [2022-04-05 04:15:55,865 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 624 transitions. [2022-04-05 04:15:55,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-04-05 04:15:55,869 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:55,869 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:55,870 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 04:15:55,870 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:55,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:55,870 INFO L85 PathProgramCache]: Analyzing trace with hash 464067919, now seen corresponding path program 1 times [2022-04-05 04:15:55,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:55,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466837851] [2022-04-05 04:15:55,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:55,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:56,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:56,018 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-05 04:15:56,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:56,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466837851] [2022-04-05 04:15:56,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466837851] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:56,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:56,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:15:56,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46628386] [2022-04-05 04:15:56,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:56,042 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:15:56,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:56,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:15:56,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:56,043 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) [2022-04-05 04:15:58,053 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 [] [2022-04-05 04:15:58,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:58,693 INFO L93 Difference]: Finished difference Result 563 states and 820 transitions. [2022-04-05 04:15:58,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:15:58,694 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 [2022-04-05 04:15:58,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:58,696 INFO L225 Difference]: With dead ends: 563 [2022-04-05 04:15:58,696 INFO L226 Difference]: Without dead ends: 563 [2022-04-05 04:15:58,696 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:58,696 INFO L913 BasicCegarLoop]: 314 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s 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, 2.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:58,696 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 476 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-04-05 04:15:58,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-04-05 04:15:58,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2022-04-05 04:15:58,703 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) [2022-04-05 04:15:58,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 820 transitions. [2022-04-05 04:15:58,705 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 820 transitions. Word has length 97 [2022-04-05 04:15:58,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:58,705 INFO L478 AbstractCegarLoop]: Abstraction has 563 states and 820 transitions. [2022-04-05 04:15:58,705 INFO L479 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) [2022-04-05 04:15:58,705 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 820 transitions. [2022-04-05 04:15:58,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-05 04:15:58,706 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:58,706 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:58,706 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 04:15:58,707 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:58,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:58,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1668406687, now seen corresponding path program 1 times [2022-04-05 04:15:58,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:58,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157621533] [2022-04-05 04:15:58,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:58,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:58,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:58,965 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-05 04:15:58,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:58,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157621533] [2022-04-05 04:15:58,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157621533] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:58,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:58,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:15:58,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199849963] [2022-04-05 04:15:58,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:58,965 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:15:58,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:58,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:15:58,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:58,966 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) [2022-04-05 04:16:00,977 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 [] [2022-04-05 04:16:01,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:01,363 INFO L93 Difference]: Finished difference Result 679 states and 990 transitions. [2022-04-05 04:16:01,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:16:01,363 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 [2022-04-05 04:16:01,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:01,365 INFO L225 Difference]: With dead ends: 679 [2022-04-05 04:16:01,365 INFO L226 Difference]: Without dead ends: 679 [2022-04-05 04:16:01,366 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:16:01,366 INFO L913 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 [2022-04-05 04:16:01,366 INFO L914 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] [2022-04-05 04:16:01,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-04-05 04:16:01,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2022-04-05 04:16:01,373 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) [2022-04-05 04:16:01,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 990 transitions. [2022-04-05 04:16:01,375 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 990 transitions. Word has length 118 [2022-04-05 04:16:01,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:01,376 INFO L478 AbstractCegarLoop]: Abstraction has 679 states and 990 transitions. [2022-04-05 04:16:01,376 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:01,376 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 990 transitions. [2022-04-05 04:16:01,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-04-05 04:16:01,377 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:01,377 INFO L499 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] [2022-04-05 04:16:01,377 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 04:16:01,378 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:01,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:01,378 INFO L85 PathProgramCache]: Analyzing trace with hash -65774092, now seen corresponding path program 1 times [2022-04-05 04:16:01,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:01,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303489648] [2022-04-05 04:16:01,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:01,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:01,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-04-05 04:16:01,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:01,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303489648] [2022-04-05 04:16:01,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303489648] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:01,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:01,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:01,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717408626] [2022-04-05 04:16:01,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:01,677 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:01,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:01,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:01,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:01,678 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) [2022-04-05 04:16:03,691 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 [] [2022-04-05 04:16:04,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:04,058 INFO L93 Difference]: Finished difference Result 1137 states and 1653 transitions. [2022-04-05 04:16:04,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:04,058 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 [2022-04-05 04:16:04,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:04,061 INFO L225 Difference]: With dead ends: 1137 [2022-04-05 04:16:04,062 INFO L226 Difference]: Without dead ends: 1137 [2022-04-05 04:16:04,062 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:16:04,063 INFO L913 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, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:04,064 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 280 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:04,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2022-04-05 04:16:04,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 784. [2022-04-05 04:16:04,088 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) [2022-04-05 04:16:04,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1150 transitions. [2022-04-05 04:16:04,090 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1150 transitions. Word has length 152 [2022-04-05 04:16:04,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:04,090 INFO L478 AbstractCegarLoop]: Abstraction has 784 states and 1150 transitions. [2022-04-05 04:16:04,090 INFO L479 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) [2022-04-05 04:16:04,090 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1150 transitions. [2022-04-05 04:16:04,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-04-05 04:16:04,092 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:04,092 INFO L499 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] [2022-04-05 04:16:04,092 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 04:16:04,092 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:04,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:04,092 INFO L85 PathProgramCache]: Analyzing trace with hash 449746357, now seen corresponding path program 1 times [2022-04-05 04:16:04,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:04,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159559548] [2022-04-05 04:16:04,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:04,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:04,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:04,358 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-04-05 04:16:04,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:04,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159559548] [2022-04-05 04:16:04,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159559548] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:04,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:04,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:04,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433565380] [2022-04-05 04:16:04,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:04,359 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:04,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:04,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:04,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:04,360 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) [2022-04-05 04:16:06,375 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 [] [2022-04-05 04:16:06,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:06,885 INFO L93 Difference]: Finished difference Result 1149 states and 1676 transitions. [2022-04-05 04:16:06,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:06,886 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 [2022-04-05 04:16:06,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:06,889 INFO L225 Difference]: With dead ends: 1149 [2022-04-05 04:16:06,889 INFO L226 Difference]: Without dead ends: 1149 [2022-04-05 04:16:06,889 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:16:06,889 INFO L913 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 [2022-04-05 04:16:06,890 INFO L914 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] [2022-04-05 04:16:06,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2022-04-05 04:16:06,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 848. [2022-04-05 04:16:06,903 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) [2022-04-05 04:16:06,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1242 transitions. [2022-04-05 04:16:06,904 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1242 transitions. Word has length 152 [2022-04-05 04:16:06,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:06,905 INFO L478 AbstractCegarLoop]: Abstraction has 848 states and 1242 transitions. [2022-04-05 04:16:06,905 INFO L479 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) [2022-04-05 04:16:06,905 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1242 transitions. [2022-04-05 04:16:06,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-04-05 04:16:06,906 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:06,906 INFO L499 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] [2022-04-05 04:16:06,906 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 04:16:06,907 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:06,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:06,907 INFO L85 PathProgramCache]: Analyzing trace with hash 52767334, now seen corresponding path program 1 times [2022-04-05 04:16:06,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:06,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747898860] [2022-04-05 04:16:06,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:06,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:07,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:07,102 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-04-05 04:16:07,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:07,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747898860] [2022-04-05 04:16:07,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747898860] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:07,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:07,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:07,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769924557] [2022-04-05 04:16:07,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:07,102 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:07,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:07,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:07,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:07,103 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) [2022-04-05 04:16:09,112 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 [] [2022-04-05 04:16:09,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:09,533 INFO L93 Difference]: Finished difference Result 1326 states and 1936 transitions. [2022-04-05 04:16:09,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:09,534 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 [2022-04-05 04:16:09,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:09,537 INFO L225 Difference]: With dead ends: 1326 [2022-04-05 04:16:09,537 INFO L226 Difference]: Without dead ends: 1326 [2022-04-05 04:16:09,538 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:16:09,538 INFO L913 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 [2022-04-05 04:16:09,538 INFO L914 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] [2022-04-05 04:16:09,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-04-05 04:16:09,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 943. [2022-04-05 04:16:09,551 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) [2022-04-05 04:16:09,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1378 transitions. [2022-04-05 04:16:09,552 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1378 transitions. Word has length 153 [2022-04-05 04:16:09,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:09,553 INFO L478 AbstractCegarLoop]: Abstraction has 943 states and 1378 transitions. [2022-04-05 04:16:09,553 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:09,553 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1378 transitions. [2022-04-05 04:16:09,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-04-05 04:16:09,554 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:09,555 INFO L499 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] [2022-04-05 04:16:09,555 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 04:16:09,555 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:09,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:09,555 INFO L85 PathProgramCache]: Analyzing trace with hash -413691918, now seen corresponding path program 2 times [2022-04-05 04:16:09,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:09,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514779729] [2022-04-05 04:16:09,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:09,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:09,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-05 04:16:09,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:09,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514779729] [2022-04-05 04:16:09,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514779729] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:09,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:09,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:09,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717934329] [2022-04-05 04:16:09,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:09,710 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:09,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:09,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:09,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:09,711 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) [2022-04-05 04:16:11,727 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 [] [2022-04-05 04:16:12,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:12,204 INFO L93 Difference]: Finished difference Result 1226 states and 1784 transitions. [2022-04-05 04:16:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:12,204 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 [2022-04-05 04:16:12,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:12,207 INFO L225 Difference]: With dead ends: 1226 [2022-04-05 04:16:12,207 INFO L226 Difference]: Without dead ends: 1226 [2022-04-05 04:16:12,207 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:16:12,208 INFO L913 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 [2022-04-05 04:16:12,208 INFO L914 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] [2022-04-05 04:16:12,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2022-04-05 04:16:12,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 943. [2022-04-05 04:16:12,221 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) [2022-04-05 04:16:12,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1374 transitions. [2022-04-05 04:16:12,222 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1374 transitions. Word has length 166 [2022-04-05 04:16:12,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:12,223 INFO L478 AbstractCegarLoop]: Abstraction has 943 states and 1374 transitions. [2022-04-05 04:16:12,223 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:12,223 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1374 transitions. [2022-04-05 04:16:12,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-04-05 04:16:12,227 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:12,227 INFO L499 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] [2022-04-05 04:16:12,227 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 04:16:12,227 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:12,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:12,228 INFO L85 PathProgramCache]: Analyzing trace with hash -811458194, now seen corresponding path program 1 times [2022-04-05 04:16:12,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:12,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090544902] [2022-04-05 04:16:12,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:12,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:12,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:12,533 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-05 04:16:12,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:12,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090544902] [2022-04-05 04:16:12,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090544902] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:12,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:12,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:12,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763658216] [2022-04-05 04:16:12,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:12,534 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:12,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:12,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:12,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:12,535 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) [2022-04-05 04:16:14,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:16:16,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:16:18,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:16:20,579 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 [] [2022-04-05 04:16:20,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:20,996 INFO L93 Difference]: Finished difference Result 1190 states and 1736 transitions. [2022-04-05 04:16:20,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:20,996 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 [2022-04-05 04:16:20,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:20,999 INFO L225 Difference]: With dead ends: 1190 [2022-04-05 04:16:20,999 INFO L226 Difference]: Without dead ends: 1190 [2022-04-05 04:16:21,000 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:16:21,000 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 89 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s 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, 8.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:21,000 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 547 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 507 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-04-05 04:16:21,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2022-04-05 04:16:21,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 943. [2022-04-05 04:16:21,016 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) [2022-04-05 04:16:21,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1370 transitions. [2022-04-05 04:16:21,018 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1370 transitions. Word has length 168 [2022-04-05 04:16:21,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:21,018 INFO L478 AbstractCegarLoop]: Abstraction has 943 states and 1370 transitions. [2022-04-05 04:16:21,018 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:21,018 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1370 transitions. [2022-04-05 04:16:21,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-04-05 04:16:21,020 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:21,020 INFO L499 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] [2022-04-05 04:16:21,020 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 04:16:21,020 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:21,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:21,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1010941213, now seen corresponding path program 3 times [2022-04-05 04:16:21,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:21,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212398202] [2022-04-05 04:16:21,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:21,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:21,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:21,214 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 294 proven. 1 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-04-05 04:16:21,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:21,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212398202] [2022-04-05 04:16:21,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212398202] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:16:21,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282783590] [2022-04-05 04:16:21,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-04-05 04:16:21,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:16:21,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:16:21,238 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) [2022-04-05 04:16:21,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-05 04:16:55,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-04-05 04:16:55,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-05 04:16:55,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-05 04:16:55,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:16:55,403 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 [2022-04-05 04:16:55,423 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:16:55,424 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 [2022-04-05 04:16:55,459 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 [2022-04-05 04:16:55,471 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-04-05 04:16:55,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-05 04:16:55,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282783590] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:55,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-05 04:16:55,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-04-05 04:16:55,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917006038] [2022-04-05 04:16:55,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:55,472 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:16:55,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:55,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:16:55,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:16:55,473 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) [2022-04-05 04:16:57,488 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 [] [2022-04-05 04:16:57,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:57,878 INFO L93 Difference]: Finished difference Result 1396 states and 2018 transitions. [2022-04-05 04:16:57,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:16:57,879 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 [2022-04-05 04:16:57,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:57,882 INFO L225 Difference]: With dead ends: 1396 [2022-04-05 04:16:57,882 INFO L226 Difference]: Without dead ends: 1396 [2022-04-05 04:16:57,882 INFO L912 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 [2022-04-05 04:16:57,883 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 100 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:57,883 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 551 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 240 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:57,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2022-04-05 04:16:57,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1063. [2022-04-05 04:16:57,911 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) [2022-04-05 04:16:57,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1555 transitions. [2022-04-05 04:16:57,912 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1555 transitions. Word has length 170 [2022-04-05 04:16:57,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:57,913 INFO L478 AbstractCegarLoop]: Abstraction has 1063 states and 1555 transitions. [2022-04-05 04:16:57,913 INFO L479 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) [2022-04-05 04:16:57,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1555 transitions. [2022-04-05 04:16:57,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-04-05 04:16:57,923 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:57,923 INFO L499 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] [2022-04-05 04:16:58,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-05 04:16:58,163 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-04-05 04:16:58,163 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:58,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:58,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1077947966, now seen corresponding path program 4 times [2022-04-05 04:16:58,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:58,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899310234] [2022-04-05 04:16:58,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:58,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:58,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:58,429 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 294 proven. 1 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-04-05 04:16:58,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:58,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899310234] [2022-04-05 04:16:58,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899310234] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:16:58,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852387247] [2022-04-05 04:16:58,430 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-05 04:16:58,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:16:58,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:16:58,431 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) [2022-04-05 04:16:58,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-05 04:16:59,238 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-05 04:16:59,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-05 04:16:59,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-05 04:16:59,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:16:59,302 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:16:59,303 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 [2022-04-05 04:16:59,308 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 [2022-04-05 04:16:59,314 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 [2022-04-05 04:16:59,320 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 [2022-04-05 04:16:59,470 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-04-05 04:16:59,470 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 [2022-04-05 04:16:59,477 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 [2022-04-05 04:16:59,504 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 [2022-04-05 04:16:59,533 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:16:59,533 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 [2022-04-05 04:16:59,679 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 [2022-04-05 04:16:59,698 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:16:59,699 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 [2022-04-05 04:16:59,741 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 [2022-04-05 04:16:59,755 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 91 proven. 70 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-04-05 04:16:59,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:16:59,992 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-04-05 04:16:59,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852387247] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:16:59,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:16:59,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-05 04:16:59,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302855693] [2022-04-05 04:16:59,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:59,993 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:16:59,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:59,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:16:59,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:16:59,994 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) [2022-04-05 04:17:02,000 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 [] [2022-04-05 04:17:02,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:02,309 INFO L93 Difference]: Finished difference Result 1536 states and 2238 transitions. [2022-04-05 04:17:02,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:17:02,309 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 [2022-04-05 04:17:02,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:02,315 INFO L225 Difference]: With dead ends: 1536 [2022-04-05 04:17:02,315 INFO L226 Difference]: Without dead ends: 1536 [2022-04-05 04:17:02,315 INFO L912 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 [2022-04-05 04:17:02,316 INFO L913 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, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:02,316 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 318 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 216 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:17:02,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2022-04-05 04:17:02,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1083. [2022-04-05 04:17:02,358 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) [2022-04-05 04:17:02,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1590 transitions. [2022-04-05 04:17:02,360 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1590 transitions. Word has length 170 [2022-04-05 04:17:02,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:02,360 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1590 transitions. [2022-04-05 04:17:02,360 INFO L479 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) [2022-04-05 04:17:02,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1590 transitions. [2022-04-05 04:17:02,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-04-05 04:17:02,362 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:02,362 INFO L499 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] [2022-04-05 04:17:02,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-05 04:17:02,579 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:02,579 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:02,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:02,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1273457422, now seen corresponding path program 1 times [2022-04-05 04:17:02,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:02,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578755083] [2022-04-05 04:17:02,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:02,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:02,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:02,812 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 294 proven. 1 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-04-05 04:17:02,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:02,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578755083] [2022-04-05 04:17:02,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578755083] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:02,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151561226] [2022-04-05 04:17:02,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:02,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:02,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:17:02,813 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) [2022-04-05 04:17:02,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-05 04:17:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:03,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 1531 conjuncts, 16 conjunts are in the unsatisfiable core [2022-04-05 04:17:03,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:17:03,815 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:17:03,815 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 [2022-04-05 04:17:03,819 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 [2022-04-05 04:17:03,827 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 [2022-04-05 04:17:03,834 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 [2022-04-05 04:17:03,915 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 [2022-04-05 04:17:03,968 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:17:03,969 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 [2022-04-05 04:17:04,063 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:17:04,063 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 [2022-04-05 04:17:04,091 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 [2022-04-05 04:17:04,150 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 256 proven. 40 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-04-05 04:17:04,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:17:04,341 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-04-05 04:17:04,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151561226] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:04,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:17:04,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-05 04:17:04,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127259661] [2022-04-05 04:17:04,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:04,342 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:17:04,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:04,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:17:04,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:17:04,343 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) [2022-04-05 04:17:06,359 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 [] [2022-04-05 04:17:06,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:06,637 INFO L93 Difference]: Finished difference Result 1436 states and 2078 transitions. [2022-04-05 04:17:06,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:17:06,638 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 [2022-04-05 04:17:06,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:06,641 INFO L225 Difference]: With dead ends: 1436 [2022-04-05 04:17:06,641 INFO L226 Difference]: Without dead ends: 1436 [2022-04-05 04:17:06,642 INFO L912 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 [2022-04-05 04:17:06,652 INFO L913 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, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:06,652 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 290 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:17:06,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2022-04-05 04:17:06,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1083. [2022-04-05 04:17:06,665 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) [2022-04-05 04:17:06,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1575 transitions. [2022-04-05 04:17:06,666 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1575 transitions. Word has length 171 [2022-04-05 04:17:06,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:06,667 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1575 transitions. [2022-04-05 04:17:06,687 INFO L479 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) [2022-04-05 04:17:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1575 transitions. [2022-04-05 04:17:06,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-04-05 04:17:06,689 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:06,689 INFO L499 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] [2022-04-05 04:17:06,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-05 04:17:06,907 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:06,907 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:06,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:06,908 INFO L85 PathProgramCache]: Analyzing trace with hash -251034012, now seen corresponding path program 1 times [2022-04-05 04:17:06,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:06,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928184550] [2022-04-05 04:17:06,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:06,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:07,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:07,253 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 295 proven. 1 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-04-05 04:17:07,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:07,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928184550] [2022-04-05 04:17:07,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928184550] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:07,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052348581] [2022-04-05 04:17:07,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:07,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:07,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:17:07,255 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) [2022-04-05 04:17:07,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-05 04:17:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:08,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 1534 conjuncts, 16 conjunts are in the unsatisfiable core [2022-04-05 04:17:08,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:17:08,282 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:17:08,282 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 [2022-04-05 04:17:08,287 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 [2022-04-05 04:17:08,292 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 [2022-04-05 04:17:08,297 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 [2022-04-05 04:17:08,397 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 [2022-04-05 04:17:08,431 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:17:08,432 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 [2022-04-05 04:17:08,532 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:17:08,532 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 [2022-04-05 04:17:08,579 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 [2022-04-05 04:17:08,657 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 259 proven. 40 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-04-05 04:17:08,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:17:08,905 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-04-05 04:17:08,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052348581] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:08,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:17:08,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-05 04:17:08,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238792735] [2022-04-05 04:17:08,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:08,906 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:17:08,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:08,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:17:08,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:17:08,907 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) [2022-04-05 04:17:10,913 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 [] [2022-04-05 04:17:11,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:11,152 INFO L93 Difference]: Finished difference Result 1428 states and 2053 transitions. [2022-04-05 04:17:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:17:11,153 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 [2022-04-05 04:17:11,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:11,156 INFO L225 Difference]: With dead ends: 1428 [2022-04-05 04:17:11,156 INFO L226 Difference]: Without dead ends: 1428 [2022-04-05 04:17:11,156 INFO L912 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 [2022-04-05 04:17:11,159 INFO L913 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 [2022-04-05 04:17:11,159 INFO L914 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] [2022-04-05 04:17:11,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2022-04-05 04:17:11,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1083. [2022-04-05 04:17:11,171 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) [2022-04-05 04:17:11,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1560 transitions. [2022-04-05 04:17:11,173 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1560 transitions. Word has length 172 [2022-04-05 04:17:11,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:11,173 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1560 transitions. [2022-04-05 04:17:11,173 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:11,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1560 transitions. [2022-04-05 04:17:11,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-04-05 04:17:11,175 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:11,175 INFO L499 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] [2022-04-05 04:17:11,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-05 04:17:11,396 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:11,397 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:11,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:11,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1563134140, now seen corresponding path program 1 times [2022-04-05 04:17:11,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:11,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891754228] [2022-04-05 04:17:11,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:11,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:11,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:11,610 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-05 04:17:11,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:11,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891754228] [2022-04-05 04:17:11,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891754228] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:11,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:11,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:11,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684197486] [2022-04-05 04:17:11,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:11,611 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:11,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:11,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:11,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:11,611 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) [2022-04-05 04:17:13,627 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 [] [2022-04-05 04:17:14,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:14,112 INFO L93 Difference]: Finished difference Result 1428 states and 2043 transitions. [2022-04-05 04:17:14,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:14,114 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 [2022-04-05 04:17:14,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:14,119 INFO L225 Difference]: With dead ends: 1428 [2022-04-05 04:17:14,119 INFO L226 Difference]: Without dead ends: 1428 [2022-04-05 04:17:14,119 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:17:14,119 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 106 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:14,120 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 282 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:17:14,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2022-04-05 04:17:14,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1088. [2022-04-05 04:17:14,134 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) [2022-04-05 04:17:14,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1560 transitions. [2022-04-05 04:17:14,139 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1560 transitions. Word has length 172 [2022-04-05 04:17:14,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:14,139 INFO L478 AbstractCegarLoop]: Abstraction has 1088 states and 1560 transitions. [2022-04-05 04:17:14,139 INFO L479 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) [2022-04-05 04:17:14,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1560 transitions. [2022-04-05 04:17:14,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-04-05 04:17:14,142 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:14,142 INFO L499 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] [2022-04-05 04:17:14,142 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 04:17:14,142 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:14,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:14,143 INFO L85 PathProgramCache]: Analyzing trace with hash -179683901, now seen corresponding path program 1 times [2022-04-05 04:17:14,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:14,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809748407] [2022-04-05 04:17:14,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:14,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:14,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 245 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-04-05 04:17:14,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:14,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809748407] [2022-04-05 04:17:14,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809748407] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:14,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130226835] [2022-04-05 04:17:14,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:14,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:14,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:17:14,512 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) [2022-04-05 04:17:14,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-05 04:17:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:15,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-05 04:17:15,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:17:15,793 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:17:15,794 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 [2022-04-05 04:17:15,812 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 [2022-04-05 04:17:15,819 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 [2022-04-05 04:17:15,825 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 [2022-04-05 04:17:15,965 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-04-05 04:17:15,982 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 [2022-04-05 04:17:16,028 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:17:16,028 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 [2022-04-05 04:17:16,225 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 [2022-04-05 04:17:16,256 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:17:16,256 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 [2022-04-05 04:17:16,317 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 [2022-04-05 04:17:16,333 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 98 proven. 70 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-04-05 04:17:16,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:17:16,533 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-04-05 04:17:16,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130226835] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:16,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:17:16,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-05 04:17:16,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705841914] [2022-04-05 04:17:16,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:16,534 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:17:16,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:16,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:17:16,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:17:16,535 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) [2022-04-05 04:17:18,541 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 [] [2022-04-05 04:17:18,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:18,798 INFO L93 Difference]: Finished difference Result 1622 states and 2312 transitions. [2022-04-05 04:17:18,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:17:18,798 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 [2022-04-05 04:17:18,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:18,802 INFO L225 Difference]: With dead ends: 1622 [2022-04-05 04:17:18,802 INFO L226 Difference]: Without dead ends: 1622 [2022-04-05 04:17:18,802 INFO L912 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 [2022-04-05 04:17:18,806 INFO L913 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, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:18,806 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 523 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 221 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 04:17:18,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-04-05 04:17:18,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1338. [2022-04-05 04:17:18,876 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) [2022-04-05 04:17:18,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1915 transitions. [2022-04-05 04:17:18,877 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1915 transitions. Word has length 175 [2022-04-05 04:17:18,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:18,878 INFO L478 AbstractCegarLoop]: Abstraction has 1338 states and 1915 transitions. [2022-04-05 04:17:18,878 INFO L479 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) [2022-04-05 04:17:18,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1915 transitions. [2022-04-05 04:17:18,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-04-05 04:17:18,879 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:18,880 INFO L499 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] [2022-04-05 04:17:18,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-05 04:17:19,099 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-04-05 04:17:19,099 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:19,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:19,100 INFO L85 PathProgramCache]: Analyzing trace with hash 2038074052, now seen corresponding path program 1 times [2022-04-05 04:17:19,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:19,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895905801] [2022-04-05 04:17:19,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:19,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:19,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:19,452 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-04-05 04:17:19,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:19,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895905801] [2022-04-05 04:17:19,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895905801] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:19,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:19,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:19,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445558386] [2022-04-05 04:17:19,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:19,454 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:19,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:19,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:19,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:19,457 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) [2022-04-05 04:17:21,480 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 [] [2022-04-05 04:17:21,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:21,787 INFO L93 Difference]: Finished difference Result 1430 states and 2020 transitions. [2022-04-05 04:17:21,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:21,787 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 [2022-04-05 04:17:21,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:21,792 INFO L225 Difference]: With dead ends: 1430 [2022-04-05 04:17:21,792 INFO L226 Difference]: Without dead ends: 1430 [2022-04-05 04:17:21,792 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:17:21,793 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 30 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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 [2022-04-05 04:17:21,793 INFO L914 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] [2022-04-05 04:17:21,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2022-04-05 04:17:21,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1338. [2022-04-05 04:17:21,831 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) [2022-04-05 04:17:21,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1910 transitions. [2022-04-05 04:17:21,833 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1910 transitions. Word has length 175 [2022-04-05 04:17:21,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:21,833 INFO L478 AbstractCegarLoop]: Abstraction has 1338 states and 1910 transitions. [2022-04-05 04:17:21,833 INFO L479 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) [2022-04-05 04:17:21,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1910 transitions. [2022-04-05 04:17:21,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-04-05 04:17:21,835 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:21,835 INFO L499 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] [2022-04-05 04:17:21,835 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-05 04:17:21,835 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:21,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:21,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1203351578, now seen corresponding path program 2 times [2022-04-05 04:17:21,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:21,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664976411] [2022-04-05 04:17:21,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:21,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:22,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:22,029 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 298 proven. 1 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-04-05 04:17:22,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:22,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664976411] [2022-04-05 04:17:22,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664976411] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:22,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448920959] [2022-04-05 04:17:22,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-05 04:17:22,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:22,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:17:22,030 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) [2022-04-05 04:17:22,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-05 04:17:40,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-05 04:17:40,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-05 04:17:40,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 1691 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-05 04:17:40,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:17:40,888 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:17:40,888 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 [2022-04-05 04:17:40,894 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 [2022-04-05 04:17:40,901 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 [2022-04-05 04:17:40,911 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 [2022-04-05 04:17:41,078 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 [2022-04-05 04:17:41,228 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-04-05 04:17:41,238 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 [2022-04-05 04:17:41,268 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:17:41,269 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 [2022-04-05 04:17:41,404 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 [2022-04-05 04:17:41,422 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:17:41,422 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 [2022-04-05 04:17:41,437 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 [2022-04-05 04:17:41,476 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 161 proven. 66 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-04-05 04:17:41,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:17:41,701 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-04-05 04:17:41,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448920959] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:41,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:17:41,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-05 04:17:41,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603869499] [2022-04-05 04:17:41,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:41,702 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:17:41,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:41,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:17:41,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:17:41,703 INFO L87 Difference]: Start difference. First operand 1338 states and 1910 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) [2022-04-05 04:17:43,716 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 [] [2022-04-05 04:17:43,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:43,941 INFO L93 Difference]: Finished difference Result 1673 states and 2358 transitions. [2022-04-05 04:17:43,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:17:43,944 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 189 [2022-04-05 04:17:43,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:43,948 INFO L225 Difference]: With dead ends: 1673 [2022-04-05 04:17:43,948 INFO L226 Difference]: Without dead ends: 1673 [2022-04-05 04:17:43,949 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:17:43,950 INFO L913 BasicCegarLoop]: 109 mSDtfsCounter, 108 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:43,950 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 304 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 204 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 04:17:43,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2022-04-05 04:17:43,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1338. [2022-04-05 04:17:43,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1333 states have (on average 1.4073518379594898) internal successors, (1876), 1333 states have internal predecessors, (1876), 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) [2022-04-05 04:17:43,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1880 transitions. [2022-04-05 04:17:43,994 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1880 transitions. Word has length 189 [2022-04-05 04:17:43,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:43,994 INFO L478 AbstractCegarLoop]: Abstraction has 1338 states and 1880 transitions. [2022-04-05 04:17:43,995 INFO L479 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) [2022-04-05 04:17:43,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1880 transitions. [2022-04-05 04:17:43,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-04-05 04:17:43,997 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:43,997 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:44,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-05 04:17:44,223 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:44,224 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:44,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1848552726, now seen corresponding path program 1 times [2022-04-05 04:17:44,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:44,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417817207] [2022-04-05 04:17:44,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:44,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:44,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:44,426 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 318 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-04-05 04:17:44,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:44,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417817207] [2022-04-05 04:17:44,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417817207] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:44,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121907365] [2022-04-05 04:17:44,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:44,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:44,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:17:44,427 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:17:44,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-04-05 04:17:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:45,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 1657 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-05 04:17:45,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:17:45,563 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:17:45,564 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 [2022-04-05 04:17:45,567 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 [2022-04-05 04:17:45,571 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 [2022-04-05 04:17:45,576 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 [2022-04-05 04:17:45,655 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 13 [2022-04-05 04:17:45,671 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 [2022-04-05 04:17:45,686 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 [2022-04-05 04:17:45,723 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:17:45,724 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 [2022-04-05 04:17:45,975 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 [2022-04-05 04:17:46,014 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:17:46,015 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 [2022-04-05 04:17:46,031 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 [2022-04-05 04:17:46,078 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 181 proven. 69 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-04-05 04:17:46,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:17:46,283 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-04-05 04:17:46,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121907365] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:46,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:17:46,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-05 04:17:46,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924844442] [2022-04-05 04:17:46,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:46,284 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:17:46,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:46,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:17:46,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:17:46,284 INFO L87 Difference]: Start difference. First operand 1338 states and 1880 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:48,291 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 [] [2022-04-05 04:17:48,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:48,532 INFO L93 Difference]: Finished difference Result 1674 states and 2329 transitions. [2022-04-05 04:17:48,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:17:48,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 191 [2022-04-05 04:17:48,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:48,537 INFO L225 Difference]: With dead ends: 1674 [2022-04-05 04:17:48,537 INFO L226 Difference]: Without dead ends: 1674 [2022-04-05 04:17:48,537 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:17:48,537 INFO L913 BasicCegarLoop]: 102 mSDtfsCounter, 113 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:48,537 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 286 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 04:17:48,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2022-04-05 04:17:48,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1338. [2022-04-05 04:17:48,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1333 states have (on average 1.3848462115528881) internal successors, (1846), 1333 states have internal predecessors, (1846), 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) [2022-04-05 04:17:48,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1850 transitions. [2022-04-05 04:17:48,581 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1850 transitions. Word has length 191 [2022-04-05 04:17:48,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:48,581 INFO L478 AbstractCegarLoop]: Abstraction has 1338 states and 1850 transitions. [2022-04-05 04:17:48,581 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:48,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1850 transitions. [2022-04-05 04:17:48,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-04-05 04:17:48,585 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:48,585 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:48,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-04-05 04:17:48,803 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:48,803 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:48,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:48,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1373065834, now seen corresponding path program 1 times [2022-04-05 04:17:48,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:48,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263946958] [2022-04-05 04:17:48,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:48,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:49,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:49,031 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2022-04-05 04:17:49,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:49,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263946958] [2022-04-05 04:17:49,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263946958] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:49,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:49,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:49,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315590394] [2022-04-05 04:17:49,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:49,032 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:49,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:49,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:49,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:49,032 INFO L87 Difference]: Start difference. First operand 1338 states and 1850 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) [2022-04-05 04:17:51,042 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 [] [2022-04-05 04:17:51,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:51,362 INFO L93 Difference]: Finished difference Result 1480 states and 2025 transitions. [2022-04-05 04:17:51,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:51,363 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 193 [2022-04-05 04:17:51,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:51,367 INFO L225 Difference]: With dead ends: 1480 [2022-04-05 04:17:51,367 INFO L226 Difference]: Without dead ends: 1480 [2022-04-05 04:17:51,367 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:17:51,367 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 18 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:51,367 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 468 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 336 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:17:51,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-04-05 04:17:51,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1448. [2022-04-05 04:17:51,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1443 states have (on average 1.3762993762993763) internal successors, (1986), 1443 states have internal predecessors, (1986), 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) [2022-04-05 04:17:51,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1990 transitions. [2022-04-05 04:17:51,401 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1990 transitions. Word has length 193 [2022-04-05 04:17:51,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:51,401 INFO L478 AbstractCegarLoop]: Abstraction has 1448 states and 1990 transitions. [2022-04-05 04:17:51,401 INFO L479 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) [2022-04-05 04:17:51,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1990 transitions. [2022-04-05 04:17:51,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-04-05 04:17:51,417 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:51,417 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:51,418 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 04:17:51,418 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:51,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:51,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1237345439, now seen corresponding path program 1 times [2022-04-05 04:17:51,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:51,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982368644] [2022-04-05 04:17:51,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:51,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:51,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:51,651 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 349 proven. 1 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-04-05 04:17:51,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:51,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982368644] [2022-04-05 04:17:51,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982368644] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:51,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590888271] [2022-04-05 04:17:51,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:51,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:51,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:17:51,669 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:17:51,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-04-05 04:17:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:52,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 1619 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-05 04:17:52,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:17:52,954 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:17:52,954 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 [2022-04-05 04:17:52,958 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 [2022-04-05 04:17:52,979 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 [2022-04-05 04:17:52,982 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 [2022-04-05 04:17:53,112 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-04-05 04:17:53,113 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 [2022-04-05 04:17:53,120 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 [2022-04-05 04:17:53,136 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 [2022-04-05 04:17:53,166 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:17:53,166 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 [2022-04-05 04:17:53,302 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 [2022-04-05 04:17:53,320 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:17:53,321 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 [2022-04-05 04:17:53,356 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 [2022-04-05 04:17:53,393 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 219 proven. 70 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-04-05 04:17:53,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:17:53,592 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-04-05 04:17:53,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590888271] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:53,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:17:53,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-05 04:17:53,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296692974] [2022-04-05 04:17:53,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:53,592 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:17:53,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:53,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:17:53,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:17:53,593 INFO L87 Difference]: Start difference. First operand 1448 states and 1990 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2022-04-05 04:17:55,599 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 [] [2022-04-05 04:17:55,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:55,782 INFO L93 Difference]: Finished difference Result 1719 states and 2366 transitions. [2022-04-05 04:17:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:17:55,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 195 [2022-04-05 04:17:55,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:55,787 INFO L225 Difference]: With dead ends: 1719 [2022-04-05 04:17:55,787 INFO L226 Difference]: Without dead ends: 1719 [2022-04-05 04:17:55,787 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:17:55,787 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 82 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:55,788 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 502 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 208 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 04:17:55,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2022-04-05 04:17:55,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1472. [2022-04-05 04:17:55,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1467 states have (on average 1.3633265167007498) internal successors, (2000), 1467 states have internal predecessors, (2000), 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) [2022-04-05 04:17:55,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2004 transitions. [2022-04-05 04:17:55,804 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2004 transitions. Word has length 195 [2022-04-05 04:17:55,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:55,804 INFO L478 AbstractCegarLoop]: Abstraction has 1472 states and 2004 transitions. [2022-04-05 04:17:55,805 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2022-04-05 04:17:55,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2004 transitions. [2022-04-05 04:17:55,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-04-05 04:17:55,806 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:55,807 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:55,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-04-05 04:17:56,031 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-04-05 04:17:56,047 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:56,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:56,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1104839985, now seen corresponding path program 1 times [2022-04-05 04:17:56,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:56,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486463507] [2022-04-05 04:17:56,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:56,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:56,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:56,380 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 350 proven. 1 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-04-05 04:17:56,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:56,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486463507] [2022-04-05 04:17:56,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486463507] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:56,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649644386] [2022-04-05 04:17:56,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:56,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:56,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:17:56,383 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:17:56,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-04-05 04:17:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:57,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 1622 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-05 04:17:57,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:17:57,701 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:17:57,701 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 [2022-04-05 04:17:57,704 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 [2022-04-05 04:17:57,709 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 [2022-04-05 04:17:57,718 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 [2022-04-05 04:17:57,829 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 [2022-04-05 04:17:57,863 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-04-05 04:17:57,863 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 [2022-04-05 04:17:57,871 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 [2022-04-05 04:17:57,927 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:17:57,927 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 [2022-04-05 04:17:58,091 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 [2022-04-05 04:17:58,111 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:17:58,112 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 [2022-04-05 04:17:58,144 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 [2022-04-05 04:17:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 221 proven. 70 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-04-05 04:17:58,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:17:58,382 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-04-05 04:17:58,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649644386] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:58,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:17:58,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-05 04:17:58,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141661195] [2022-04-05 04:17:58,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:58,383 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:17:58,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:58,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:17:58,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:17:58,384 INFO L87 Difference]: Start difference. First operand 1472 states and 2004 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2022-04-05 04:18:00,392 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 [] [2022-04-05 04:18:00,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:00,613 INFO L93 Difference]: Finished difference Result 1705 states and 2337 transitions. [2022-04-05 04:18:00,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:18:00,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 196 [2022-04-05 04:18:00,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:00,631 INFO L225 Difference]: With dead ends: 1705 [2022-04-05 04:18:00,631 INFO L226 Difference]: Without dead ends: 1705 [2022-04-05 04:18:00,631 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:18:00,631 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 77 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:00,631 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 494 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 206 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 04:18:00,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2022-04-05 04:18:00,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1476. [2022-04-05 04:18:00,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1471 states have (on average 1.3555404486743712) internal successors, (1994), 1471 states have internal predecessors, (1994), 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) [2022-04-05 04:18:00,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 1998 transitions. [2022-04-05 04:18:00,650 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 1998 transitions. Word has length 196 [2022-04-05 04:18:00,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:00,650 INFO L478 AbstractCegarLoop]: Abstraction has 1476 states and 1998 transitions. [2022-04-05 04:18:00,651 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2022-04-05 04:18:00,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 1998 transitions. [2022-04-05 04:18:00,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-04-05 04:18:00,659 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:00,659 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:00,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-04-05 04:18:00,895 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-04-05 04:18:00,895 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:00,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:00,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1358486231, now seen corresponding path program 1 times [2022-04-05 04:18:00,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:00,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52228174] [2022-04-05 04:18:00,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:00,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:01,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:01,195 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 347 proven. 1 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-04-05 04:18:01,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:01,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52228174] [2022-04-05 04:18:01,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52228174] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:18:01,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725189646] [2022-04-05 04:18:01,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:01,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:18:01,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:18:01,243 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:18:01,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-04-05 04:18:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:02,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-05 04:18:02,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:18:02,740 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:18:02,740 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 [2022-04-05 04:18:02,743 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 [2022-04-05 04:18:02,747 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 [2022-04-05 04:18:02,752 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 [2022-04-05 04:18:02,818 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-04-05 04:18:02,829 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 [2022-04-05 04:18:02,831 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 [2022-04-05 04:18:02,855 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:18:02,856 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 [2022-04-05 04:18:02,994 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 [2022-04-05 04:18:03,011 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:18:03,011 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 [2022-04-05 04:18:03,044 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 [2022-04-05 04:18:03,055 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 116 proven. 80 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-04-05 04:18:03,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:18:03,244 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2022-04-05 04:18:03,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725189646] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:18:03,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:18:03,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-05 04:18:03,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9207031] [2022-04-05 04:18:03,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:03,245 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:18:03,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:03,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:18:03,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:18:03,246 INFO L87 Difference]: Start difference. First operand 1476 states and 1998 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2022-04-05 04:18:05,255 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 [] [2022-04-05 04:18:05,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:05,483 INFO L93 Difference]: Finished difference Result 1680 states and 2299 transitions. [2022-04-05 04:18:05,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:18:05,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 199 [2022-04-05 04:18:05,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:05,491 INFO L225 Difference]: With dead ends: 1680 [2022-04-05 04:18:05,491 INFO L226 Difference]: Without dead ends: 1680 [2022-04-05 04:18:05,491 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:18:05,492 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 69 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:05,492 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 489 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 205 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 04:18:05,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2022-04-05 04:18:05,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1356. [2022-04-05 04:18:05,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 1351 states have (on average 1.3612139156180607) internal successors, (1839), 1351 states have internal predecessors, (1839), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:05,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 1843 transitions. [2022-04-05 04:18:05,524 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 1843 transitions. Word has length 199 [2022-04-05 04:18:05,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:05,525 INFO L478 AbstractCegarLoop]: Abstraction has 1356 states and 1843 transitions. [2022-04-05 04:18:05,525 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2022-04-05 04:18:05,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 1843 transitions. [2022-04-05 04:18:05,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-04-05 04:18:05,527 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:05,527 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:05,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-04-05 04:18:05,750 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:18:05,751 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:05,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:05,751 INFO L85 PathProgramCache]: Analyzing trace with hash 246135667, now seen corresponding path program 1 times [2022-04-05 04:18:05,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:05,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782137413] [2022-04-05 04:18:05,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:05,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:05,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:05,987 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 347 proven. 1 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-04-05 04:18:05,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:05,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782137413] [2022-04-05 04:18:05,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782137413] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:18:05,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216141748] [2022-04-05 04:18:05,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:05,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:18:05,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:18:05,989 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:18:06,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-04-05 04:18:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:07,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 16 conjunts are in the unsatisfiable core [2022-04-05 04:18:07,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:18:07,349 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:18:07,350 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 [2022-04-05 04:18:07,353 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 [2022-04-05 04:18:07,358 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 [2022-04-05 04:18:07,362 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 [2022-04-05 04:18:07,478 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 [2022-04-05 04:18:07,481 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 [2022-04-05 04:18:07,524 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:18:07,524 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 [2022-04-05 04:18:07,616 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:18:07,616 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 [2022-04-05 04:18:07,641 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 [2022-04-05 04:18:07,725 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 317 proven. 50 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-04-05 04:18:07,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:18:07,956 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-04-05 04:18:07,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216141748] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:18:07,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:18:07,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-05 04:18:07,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744222290] [2022-04-05 04:18:07,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:07,957 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:18:07,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:07,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:18:07,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:18:07,958 INFO L87 Difference]: Start difference. First operand 1356 states and 1843 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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) [2022-04-05 04:18:09,966 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 [] [2022-04-05 04:18:10,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:10,195 INFO L93 Difference]: Finished difference Result 1412 states and 1909 transitions. [2022-04-05 04:18:10,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:18:10,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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 205 [2022-04-05 04:18:10,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:10,217 INFO L225 Difference]: With dead ends: 1412 [2022-04-05 04:18:10,217 INFO L226 Difference]: Without dead ends: 1412 [2022-04-05 04:18:10,218 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:18:10,218 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 105 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:10,218 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 476 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 04:18:10,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2022-04-05 04:18:10,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1128. [2022-04-05 04:18:10,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1123 states have (on average 1.335707925200356) internal successors, (1500), 1123 states have internal predecessors, (1500), 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) [2022-04-05 04:18:10,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1504 transitions. [2022-04-05 04:18:10,231 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1504 transitions. Word has length 205 [2022-04-05 04:18:10,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:10,231 INFO L478 AbstractCegarLoop]: Abstraction has 1128 states and 1504 transitions. [2022-04-05 04:18:10,231 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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) [2022-04-05 04:18:10,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1504 transitions. [2022-04-05 04:18:10,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-04-05 04:18:10,250 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:10,251 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:10,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-04-05 04:18:10,471 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-04-05 04:18:10,471 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:10,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:10,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1709317833, now seen corresponding path program 1 times [2022-04-05 04:18:10,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:10,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120089603] [2022-04-05 04:18:10,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:10,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:10,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:10,852 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-04-05 04:18:10,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:10,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120089603] [2022-04-05 04:18:10,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120089603] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:10,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:10,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:10,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718748564] [2022-04-05 04:18:10,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:10,853 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:10,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:10,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:10,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:10,854 INFO L87 Difference]: Start difference. First operand 1128 states and 1504 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:12,864 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 [] [2022-04-05 04:18:13,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:13,225 INFO L93 Difference]: Finished difference Result 1490 states and 1989 transitions. [2022-04-05 04:18:13,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:13,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2022-04-05 04:18:13,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:13,228 INFO L225 Difference]: With dead ends: 1490 [2022-04-05 04:18:13,228 INFO L226 Difference]: Without dead ends: 1490 [2022-04-05 04:18:13,228 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:18:13,228 INFO L913 BasicCegarLoop]: 105 mSDtfsCounter, 89 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:13,228 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 294 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:18:13,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2022-04-05 04:18:13,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1280. [2022-04-05 04:18:13,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1275 states have (on average 1.3490196078431373) internal successors, (1720), 1275 states have internal predecessors, (1720), 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) [2022-04-05 04:18:13,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1724 transitions. [2022-04-05 04:18:13,238 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1724 transitions. Word has length 219 [2022-04-05 04:18:13,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:13,238 INFO L478 AbstractCegarLoop]: Abstraction has 1280 states and 1724 transitions. [2022-04-05 04:18:13,239 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:13,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1724 transitions. [2022-04-05 04:18:13,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-04-05 04:18:13,240 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:13,240 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:13,241 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-05 04:18:13,241 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:13,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:13,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1241001243, now seen corresponding path program 1 times [2022-04-05 04:18:13,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:13,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012156353] [2022-04-05 04:18:13,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:13,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:13,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:13,401 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-04-05 04:18:13,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:13,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012156353] [2022-04-05 04:18:13,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012156353] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:13,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:13,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:13,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650188404] [2022-04-05 04:18:13,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:13,403 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:13,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:13,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:13,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:13,403 INFO L87 Difference]: Start difference. First operand 1280 states and 1724 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:15,412 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 [] [2022-04-05 04:18:15,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:15,783 INFO L93 Difference]: Finished difference Result 1550 states and 2105 transitions. [2022-04-05 04:18:15,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:15,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 220 [2022-04-05 04:18:15,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:15,785 INFO L225 Difference]: With dead ends: 1550 [2022-04-05 04:18:15,785 INFO L226 Difference]: Without dead ends: 1550 [2022-04-05 04:18:15,785 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:18:15,786 INFO L913 BasicCegarLoop]: 102 mSDtfsCounter, 88 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:15,786 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 288 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:18:15,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2022-04-05 04:18:15,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1344. [2022-04-05 04:18:15,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1339 states have (on average 1.3771471247199403) internal successors, (1844), 1339 states have internal predecessors, (1844), 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) [2022-04-05 04:18:15,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1848 transitions. [2022-04-05 04:18:15,797 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1848 transitions. Word has length 220 [2022-04-05 04:18:15,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:15,797 INFO L478 AbstractCegarLoop]: Abstraction has 1344 states and 1848 transitions. [2022-04-05 04:18:15,797 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:15,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1848 transitions. [2022-04-05 04:18:15,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-04-05 04:18:15,799 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:15,799 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:15,799 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-05 04:18:15,799 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:15,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:15,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1863950338, now seen corresponding path program 1 times [2022-04-05 04:18:15,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:15,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981562243] [2022-04-05 04:18:15,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:15,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:15,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:15,976 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-04-05 04:18:15,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:15,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981562243] [2022-04-05 04:18:15,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981562243] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:15,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:15,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:15,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667721955] [2022-04-05 04:18:15,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:15,977 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:15,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:15,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:15,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:15,978 INFO L87 Difference]: Start difference. First operand 1344 states and 1848 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:17,991 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 [] [2022-04-05 04:18:18,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:18,348 INFO L93 Difference]: Finished difference Result 1550 states and 2101 transitions. [2022-04-05 04:18:18,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:18,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 220 [2022-04-05 04:18:18,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:18,351 INFO L225 Difference]: With dead ends: 1550 [2022-04-05 04:18:18,351 INFO L226 Difference]: Without dead ends: 1550 [2022-04-05 04:18:18,351 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:18:18,352 INFO L913 BasicCegarLoop]: 102 mSDtfsCounter, 86 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:18,352 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 288 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:18:18,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2022-04-05 04:18:18,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1348. [2022-04-05 04:18:18,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1343 states have (on average 1.37602382725242) internal successors, (1848), 1343 states have internal predecessors, (1848), 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) [2022-04-05 04:18:18,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1852 transitions. [2022-04-05 04:18:18,362 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1852 transitions. Word has length 220 [2022-04-05 04:18:18,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:18,363 INFO L478 AbstractCegarLoop]: Abstraction has 1348 states and 1852 transitions. [2022-04-05 04:18:18,363 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:18,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1852 transitions. [2022-04-05 04:18:18,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-04-05 04:18:18,364 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:18,364 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:18,365 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-05 04:18:18,365 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:18,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:18,365 INFO L85 PathProgramCache]: Analyzing trace with hash -2069306641, now seen corresponding path program 1 times [2022-04-05 04:18:18,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:18,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84645757] [2022-04-05 04:18:18,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:18,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:18,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:18,551 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-04-05 04:18:18,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:18,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84645757] [2022-04-05 04:18:18,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84645757] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:18,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:18,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:18,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668780894] [2022-04-05 04:18:18,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:18,552 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:18,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:18,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:18,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:18,552 INFO L87 Difference]: Start difference. First operand 1348 states and 1852 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:20,568 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 [] [2022-04-05 04:18:20,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:20,915 INFO L93 Difference]: Finished difference Result 1542 states and 2089 transitions. [2022-04-05 04:18:20,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:20,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 221 [2022-04-05 04:18:20,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:20,918 INFO L225 Difference]: With dead ends: 1542 [2022-04-05 04:18:20,918 INFO L226 Difference]: Without dead ends: 1542 [2022-04-05 04:18:20,918 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:18:20,918 INFO L913 BasicCegarLoop]: 103 mSDtfsCounter, 83 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:20,918 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 290 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:18:20,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2022-04-05 04:18:20,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1352. [2022-04-05 04:18:20,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 1347 states have (on average 1.3749072011878247) internal successors, (1852), 1347 states have internal predecessors, (1852), 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) [2022-04-05 04:18:20,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1856 transitions. [2022-04-05 04:18:20,930 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1856 transitions. Word has length 221 [2022-04-05 04:18:20,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:20,930 INFO L478 AbstractCegarLoop]: Abstraction has 1352 states and 1856 transitions. [2022-04-05 04:18:20,930 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:20,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1856 transitions. [2022-04-05 04:18:20,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-04-05 04:18:20,932 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:20,932 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:20,933 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-05 04:18:20,933 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:20,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:20,934 INFO L85 PathProgramCache]: Analyzing trace with hash 105351703, now seen corresponding path program 1 times [2022-04-05 04:18:20,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:20,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831331754] [2022-04-05 04:18:20,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:20,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:21,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:21,228 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-04-05 04:18:21,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:21,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831331754] [2022-04-05 04:18:21,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831331754] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:21,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:21,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:21,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768995498] [2022-04-05 04:18:21,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:21,230 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:21,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:21,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:21,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:21,230 INFO L87 Difference]: Start difference. First operand 1352 states and 1856 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:23,247 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 [] [2022-04-05 04:18:23,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:23,586 INFO L93 Difference]: Finished difference Result 1530 states and 2069 transitions. [2022-04-05 04:18:23,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:23,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 222 [2022-04-05 04:18:23,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:23,589 INFO L225 Difference]: With dead ends: 1530 [2022-04-05 04:18:23,589 INFO L226 Difference]: Without dead ends: 1526 [2022-04-05 04:18:23,589 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:18:23,589 INFO L913 BasicCegarLoop]: 106 mSDtfsCounter, 79 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:23,590 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 296 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:18:23,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1526 states. [2022-04-05 04:18:23,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1526 to 1360. [2022-04-05 04:18:23,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1355 states have (on average 1.3756457564575646) internal successors, (1864), 1355 states have internal predecessors, (1864), 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) [2022-04-05 04:18:23,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 1868 transitions. [2022-04-05 04:18:23,602 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 1868 transitions. Word has length 222 [2022-04-05 04:18:23,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:23,602 INFO L478 AbstractCegarLoop]: Abstraction has 1360 states and 1868 transitions. [2022-04-05 04:18:23,603 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:23,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1868 transitions. [2022-04-05 04:18:23,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-04-05 04:18:23,604 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:23,604 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:23,604 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-05 04:18:23,605 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:23,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:23,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1790899510, now seen corresponding path program 2 times [2022-04-05 04:18:23,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:23,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303017789] [2022-04-05 04:18:23,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:23,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:23,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:23,836 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 442 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-04-05 04:18:23,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:23,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303017789] [2022-04-05 04:18:23,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303017789] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:23,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:23,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:23,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550966879] [2022-04-05 04:18:23,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:23,838 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:23,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:23,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:23,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:23,839 INFO L87 Difference]: Start difference. First operand 1360 states and 1868 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:25,854 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 [] [2022-04-05 04:18:26,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:26,204 INFO L93 Difference]: Finished difference Result 1694 states and 2289 transitions. [2022-04-05 04:18:26,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:26,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 250 [2022-04-05 04:18:26,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:26,207 INFO L225 Difference]: With dead ends: 1694 [2022-04-05 04:18:26,207 INFO L226 Difference]: Without dead ends: 1694 [2022-04-05 04:18:26,207 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:18:26,207 INFO L913 BasicCegarLoop]: 107 mSDtfsCounter, 86 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:26,207 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 298 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:18:26,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-04-05 04:18:26,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1492. [2022-04-05 04:18:26,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1487 states have (on average 1.3691997310020174) internal successors, (2036), 1487 states have internal predecessors, (2036), 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) [2022-04-05 04:18:26,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 2040 transitions. [2022-04-05 04:18:26,251 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 2040 transitions. Word has length 250 [2022-04-05 04:18:26,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:26,251 INFO L478 AbstractCegarLoop]: Abstraction has 1492 states and 2040 transitions. [2022-04-05 04:18:26,252 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:26,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 2040 transitions. [2022-04-05 04:18:26,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-04-05 04:18:26,254 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:26,254 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:26,254 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-05 04:18:26,254 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:26,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:26,254 INFO L85 PathProgramCache]: Analyzing trace with hash 664401366, now seen corresponding path program 1 times [2022-04-05 04:18:26,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:26,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978362139] [2022-04-05 04:18:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:26,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:26,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:26,588 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 446 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-04-05 04:18:26,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:26,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978362139] [2022-04-05 04:18:26,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978362139] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:26,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:26,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:26,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789234218] [2022-04-05 04:18:26,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:26,590 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:26,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:26,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:26,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:26,591 INFO L87 Difference]: Start difference. First operand 1492 states and 2040 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:28,607 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 [] [2022-04-05 04:18:28,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:28,957 INFO L93 Difference]: Finished difference Result 1822 states and 2453 transitions. [2022-04-05 04:18:28,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:28,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 250 [2022-04-05 04:18:28,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:28,959 INFO L225 Difference]: With dead ends: 1822 [2022-04-05 04:18:28,959 INFO L226 Difference]: Without dead ends: 1822 [2022-04-05 04:18:28,959 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:18:28,960 INFO L913 BasicCegarLoop]: 108 mSDtfsCounter, 84 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:28,960 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 300 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:18:28,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2022-04-05 04:18:28,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1628. [2022-04-05 04:18:28,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1623 states have (on average 1.3653727664818238) internal successors, (2216), 1623 states have internal predecessors, (2216), 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) [2022-04-05 04:18:28,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2220 transitions. [2022-04-05 04:18:28,983 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2220 transitions. Word has length 250 [2022-04-05 04:18:28,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:28,983 INFO L478 AbstractCegarLoop]: Abstraction has 1628 states and 2220 transitions. [2022-04-05 04:18:28,983 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:28,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2220 transitions. [2022-04-05 04:18:28,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-04-05 04:18:28,985 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:28,986 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:28,986 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-05 04:18:28,986 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:28,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:28,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1517995278, now seen corresponding path program 1 times [2022-04-05 04:18:28,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:28,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886927572] [2022-04-05 04:18:28,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:28,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:29,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:29,178 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 444 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-04-05 04:18:29,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:29,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886927572] [2022-04-05 04:18:29,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886927572] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:29,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:29,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:29,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050372350] [2022-04-05 04:18:29,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:29,179 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:29,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:29,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:29,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:29,179 INFO L87 Difference]: Start difference. First operand 1628 states and 2220 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:31,190 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 [] [2022-04-05 04:18:31,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:31,537 INFO L93 Difference]: Finished difference Result 1794 states and 2405 transitions. [2022-04-05 04:18:31,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:31,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 252 [2022-04-05 04:18:31,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:31,539 INFO L225 Difference]: With dead ends: 1794 [2022-04-05 04:18:31,539 INFO L226 Difference]: Without dead ends: 1794 [2022-04-05 04:18:31,539 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:18:31,540 INFO L913 BasicCegarLoop]: 107 mSDtfsCounter, 85 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:31,541 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 298 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:18:31,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2022-04-05 04:18:31,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1628. [2022-04-05 04:18:31,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1623 states have (on average 1.3579790511398644) internal successors, (2204), 1623 states have internal predecessors, (2204), 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) [2022-04-05 04:18:31,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2208 transitions. [2022-04-05 04:18:31,552 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2208 transitions. Word has length 252 [2022-04-05 04:18:31,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:31,552 INFO L478 AbstractCegarLoop]: Abstraction has 1628 states and 2208 transitions. [2022-04-05 04:18:31,552 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:31,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2208 transitions. [2022-04-05 04:18:31,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-04-05 04:18:31,554 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:31,554 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:31,554 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-05 04:18:31,554 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:31,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:31,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1056612690, now seen corresponding path program 1 times [2022-04-05 04:18:31,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:31,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358709613] [2022-04-05 04:18:31,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:31,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:31,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:31,706 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 426 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-04-05 04:18:31,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:31,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358709613] [2022-04-05 04:18:31,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358709613] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:31,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:31,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:31,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222511287] [2022-04-05 04:18:31,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:31,707 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:31,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:31,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:31,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:31,707 INFO L87 Difference]: Start difference. First operand 1628 states and 2208 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:33,717 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 [] [2022-04-05 04:18:33,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:33,985 INFO L93 Difference]: Finished difference Result 1642 states and 2218 transitions. [2022-04-05 04:18:33,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:33,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 252 [2022-04-05 04:18:33,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:33,988 INFO L225 Difference]: With dead ends: 1642 [2022-04-05 04:18:33,988 INFO L226 Difference]: Without dead ends: 1642 [2022-04-05 04:18:33,988 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:18:33,988 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 14 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:33,988 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 460 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 330 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:18:33,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2022-04-05 04:18:33,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1628. [2022-04-05 04:18:33,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1623 states have (on average 1.3555144793592113) internal successors, (2200), 1623 states have internal predecessors, (2200), 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) [2022-04-05 04:18:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2204 transitions. [2022-04-05 04:18:33,999 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2204 transitions. Word has length 252 [2022-04-05 04:18:34,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:34,000 INFO L478 AbstractCegarLoop]: Abstraction has 1628 states and 2204 transitions. [2022-04-05 04:18:34,000 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:34,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2204 transitions. [2022-04-05 04:18:34,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-04-05 04:18:34,002 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:34,002 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:34,002 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-05 04:18:34,002 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:34,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:34,002 INFO L85 PathProgramCache]: Analyzing trace with hash 13485327, now seen corresponding path program 1 times [2022-04-05 04:18:34,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:34,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026756381] [2022-04-05 04:18:34,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:34,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:34,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:34,188 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 532 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2022-04-05 04:18:34,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:34,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026756381] [2022-04-05 04:18:34,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026756381] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:34,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:34,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:34,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029203517] [2022-04-05 04:18:34,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:34,189 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:34,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:34,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:34,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:34,189 INFO L87 Difference]: Start difference. First operand 1628 states and 2204 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:36,200 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 [] [2022-04-05 04:18:36,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:36,469 INFO L93 Difference]: Finished difference Result 1744 states and 2344 transitions. [2022-04-05 04:18:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:36,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 274 [2022-04-05 04:18:36,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:36,472 INFO L225 Difference]: With dead ends: 1744 [2022-04-05 04:18:36,472 INFO L226 Difference]: Without dead ends: 1744 [2022-04-05 04:18:36,472 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:18:36,474 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 12 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:36,474 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 456 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:18:36,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-04-05 04:18:36,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1732. [2022-04-05 04:18:36,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1727 states have (on average 1.3456861609727853) internal successors, (2324), 1727 states have internal predecessors, (2324), 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) [2022-04-05 04:18:36,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2328 transitions. [2022-04-05 04:18:36,487 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2328 transitions. Word has length 274 [2022-04-05 04:18:36,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:36,487 INFO L478 AbstractCegarLoop]: Abstraction has 1732 states and 2328 transitions. [2022-04-05 04:18:36,487 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:36,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2328 transitions. [2022-04-05 04:18:36,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-04-05 04:18:36,489 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:36,489 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:36,490 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-05 04:18:36,490 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:36,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:36,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1425199128, now seen corresponding path program 1 times [2022-04-05 04:18:36,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:36,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466067459] [2022-04-05 04:18:36,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:36,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:36,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:36,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-04-05 04:18:36,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:36,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466067459] [2022-04-05 04:18:36,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466067459] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:36,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:36,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:36,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026629139] [2022-04-05 04:18:36,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:36,722 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:36,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:36,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:36,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:36,722 INFO L87 Difference]: Start difference. First operand 1732 states and 2328 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:38,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:18:39,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:39,061 INFO L93 Difference]: Finished difference Result 1898 states and 2517 transitions. [2022-04-05 04:18:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:39,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 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 298 [2022-04-05 04:18:39,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:39,066 INFO L225 Difference]: With dead ends: 1898 [2022-04-05 04:18:39,066 INFO L226 Difference]: Without dead ends: 1898 [2022-04-05 04:18:39,066 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:18:39,066 INFO L913 BasicCegarLoop]: 107 mSDtfsCounter, 83 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:39,066 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 298 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:18:39,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2022-04-05 04:18:39,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1732. [2022-04-05 04:18:39,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1727 states have (on average 1.3410538506079908) internal successors, (2316), 1727 states have internal predecessors, (2316), 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) [2022-04-05 04:18:39,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2320 transitions. [2022-04-05 04:18:39,078 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2320 transitions. Word has length 298 [2022-04-05 04:18:39,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:39,078 INFO L478 AbstractCegarLoop]: Abstraction has 1732 states and 2320 transitions. [2022-04-05 04:18:39,078 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:39,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2320 transitions. [2022-04-05 04:18:39,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-04-05 04:18:39,096 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:39,096 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:39,096 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-05 04:18:39,097 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:39,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:39,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2074742642, now seen corresponding path program 1 times [2022-04-05 04:18:39,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:39,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780748445] [2022-04-05 04:18:39,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:39,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:42,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:42,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 546 proven. 238 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2022-04-05 04:18:42,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:42,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780748445] [2022-04-05 04:18:42,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780748445] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:18:42,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859338346] [2022-04-05 04:18:42,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:42,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:18:42,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:18:42,387 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:18:42,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-04-05 04:18:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:44,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 2085 conjuncts, 176 conjunts are in the unsatisfiable core [2022-04-05 04:18:44,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:18:44,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:18:44,708 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 40 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13354 treesize of output 937 [2022-04-05 04:18:45,338 INFO L244 Elim1Store]: Index analysis took 149 ms [2022-04-05 04:19:07,119 WARN L230 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-04-05 04:19:07,120 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-04-05 04:19:07,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2022-04-05 04:19:07,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-04-05 04:19:07,320 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-04-05 04:19:07,321 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:186) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:166) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:154) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:110) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:95) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:90) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:904) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:865) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:783) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:425) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:412) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:197) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:264) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:184) ... 56 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 74 more [2022-04-05 04:19:07,325 INFO L158 Benchmark]: Toolchain (without parser) took 220825.00ms. Allocated memory was 167.8MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 111.9MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2022-04-05 04:19:07,325 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 167.8MB. Free memory was 130.6MB in the beginning and 130.6MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-05 04:19:07,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.86ms. Allocated memory was 167.8MB in the beginning and 266.3MB in the end (delta: 98.6MB). Free memory was 111.7MB in the beginning and 220.8MB in the end (delta: -109.1MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. [2022-04-05 04:19:07,325 INFO L158 Benchmark]: Boogie Preprocessor took 101.11ms. Allocated memory is still 266.3MB. Free memory was 220.8MB in the beginning and 213.5MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-04-05 04:19:07,325 INFO L158 Benchmark]: RCFGBuilder took 1730.68ms. Allocated memory is still 266.3MB. Free memory was 213.5MB in the beginning and 125.9MB in the end (delta: 87.6MB). Peak memory consumption was 88.1MB. Max. memory is 8.0GB. [2022-04-05 04:19:07,325 INFO L158 Benchmark]: IcfgTransformer took 30.57ms. Allocated memory is still 266.3MB. Free memory was 125.9MB in the beginning and 121.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-04-05 04:19:07,325 INFO L158 Benchmark]: TraceAbstraction took 218477.71ms. Allocated memory was 266.3MB in the beginning and 3.2GB in the end (delta: 2.9GB). Free memory was 120.7MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2022-04-05 04:19:07,326 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 167.8MB. Free memory was 130.6MB in the beginning and 130.6MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 480.86ms. Allocated memory was 167.8MB in the beginning and 266.3MB in the end (delta: 98.6MB). Free memory was 111.7MB in the beginning and 220.8MB in the end (delta: -109.1MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 101.11ms. Allocated memory is still 266.3MB. Free memory was 220.8MB in the beginning and 213.5MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1730.68ms. Allocated memory is still 266.3MB. Free memory was 213.5MB in the beginning and 125.9MB in the end (delta: 87.6MB). Peak memory consumption was 88.1MB. Max. memory is 8.0GB. * IcfgTransformer took 30.57ms. Allocated memory is still 266.3MB. Free memory was 125.9MB in the beginning and 121.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * TraceAbstraction took 218477.71ms. Allocated memory was 266.3MB in the beginning and 3.2GB in the end (delta: 2.9GB). Free memory was 120.7MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:186) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...