/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/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 00:38:24,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 00:38:24,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 00:38:24,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-24 00:38:24,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-24 00:38:24,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-24 00:38:24,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-24 00:38:24,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-24 00:38:24,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-24 00:38:24,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-24 00:38:24,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-24 00:38:24,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-24 00:38:24,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 00:38:24,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 00:38:24,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 00:38:24,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 00:38:24,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 00:38:24,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 00:38:24,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 00:38:24,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 00:38:24,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 00:38:24,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 00:38:24,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 00:38:24,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 00:38:24,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-24 00:38:24,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 00:38:24,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 00:38:24,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 00:38:24,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-02-24 00:38:24,633 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 00:38:24,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 00:38:24,634 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-24 00:38:24,634 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-24 00:38:24,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-24 00:38:24,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-24 00:38:24,635 INFO L138 SettingsManager]: * Use SBE=true [2022-02-24 00:38:24,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 00:38:24,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 00:38:24,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 00:38:24,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 00:38:24,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 00:38:24,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 00:38:24,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 00:38:24,638 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 00:38:24,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 00:38:24,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 00:38:24,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 00:38:24,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 00:38:24,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:38:24,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 00:38:24,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-24 00:38:24,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-24 00:38:24,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-24 00:38:24,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-24 00:38:24,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 00:38:24,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-02-24 00:38:24,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-24 00:38:24,640 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-24 00:38:24,640 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 00:38:24,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 00:38:24,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 00:38:24,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 00:38:24,810 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 00:38:24,811 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 00:38:24,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c [2022-02-24 00:38:24,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/526602ad1/7d69d17bf0ac4c23b19d3f9554861c9e/FLAG506360fa1 [2022-02-24 00:38:25,287 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 00:38:25,288 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c [2022-02-24 00:38:25,304 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/526602ad1/7d69d17bf0ac4c23b19d3f9554861c9e/FLAG506360fa1 [2022-02-24 00:38:25,633 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/526602ad1/7d69d17bf0ac4c23b19d3f9554861c9e [2022-02-24 00:38:25,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 00:38:25,636 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-24 00:38:25,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 00:38:25,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 00:38:25,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 00:38:25,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:38:25" (1/1) ... [2022-02-24 00:38:25,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae2365a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:25, skipping insertion in model container [2022-02-24 00:38:25,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:38:25" (1/1) ... [2022-02-24 00:38:25,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 00:38:25,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 00:38:25,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c[65523,65536] [2022-02-24 00:38:25,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:38:25,991 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 00:38:26,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c[65523,65536] [2022-02-24 00:38:26,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:38:26,084 INFO L208 MainTranslator]: Completed translation [2022-02-24 00:38:26,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:26 WrapperNode [2022-02-24 00:38:26,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 00:38:26,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 00:38:26,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 00:38:26,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 00:38:26,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:26" (1/1) ... [2022-02-24 00:38:26,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:26" (1/1) ... [2022-02-24 00:38:26,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:26" (1/1) ... [2022-02-24 00:38:26,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:26" (1/1) ... [2022-02-24 00:38:26,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:26" (1/1) ... [2022-02-24 00:38:26,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:26" (1/1) ... [2022-02-24 00:38:26,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:26" (1/1) ... [2022-02-24 00:38:26,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 00:38:26,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 00:38:26,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 00:38:26,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 00:38:26,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:26" (1/1) ... [2022-02-24 00:38:26,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:38:26,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:38:26,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-24 00:38:26,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-24 00:38:26,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 00:38:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 00:38:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 00:38:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-02-24 00:38:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-02-24 00:38:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 00:38:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-02-24 00:38:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-24 00:38:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-24 00:38:26,257 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-24 00:38:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 00:38:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 00:38:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 00:38:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 00:38:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 00:38:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 00:38:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 00:38:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 00:38:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-24 00:38:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-24 00:38:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-02-24 00:38:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-24 00:38:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-02-24 00:38:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-02-24 00:38:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-24 00:38:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-24 00:38:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 00:38:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 00:38:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 00:38:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-24 00:38:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 00:38:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-24 00:38:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-24 00:38:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 00:38:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 00:38:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 00:38:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-24 00:38:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-24 00:38:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-24 00:38:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-24 00:38:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 00:38:26,408 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 00:38:26,409 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 00:38:27,666 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 00:38:28,017 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-02-24 00:38:28,018 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-02-24 00:38:28,034 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 00:38:28,040 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 00:38:28,040 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 00:38:28,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:38:28 BoogieIcfgContainer [2022-02-24 00:38:28,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 00:38:28,042 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-24 00:38:28,042 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-24 00:38:28,045 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-24 00:38:28,047 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:38:28" (1/1) ... [2022-02-24 00:38:28,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:38:28 BasicIcfg [2022-02-24 00:38:28,104 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-24 00:38:28,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 00:38:28,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 00:38:28,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 00:38:28,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:38:25" (1/4) ... [2022-02-24 00:38:28,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a4c087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:38:28, skipping insertion in model container [2022-02-24 00:38:28,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:26" (2/4) ... [2022-02-24 00:38:28,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a4c087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:38:28, skipping insertion in model container [2022-02-24 00:38:28,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:38:28" (3/4) ... [2022-02-24 00:38:28,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a4c087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:38:28, skipping insertion in model container [2022-02-24 00:38:28,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:38:28" (4/4) ... [2022-02-24 00:38:28,114 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-1.cqvasr [2022-02-24 00:38:28,117 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-24 00:38:28,118 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 00:38:28,150 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 00:38:28,154 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-24 00:38:28,154 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 00:38:28,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 00:38:28,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-24 00:38:28,172 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:28,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:38:28,173 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:28,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:28,176 INFO L85 PathProgramCache]: Analyzing trace with hash -106935299, now seen corresponding path program 1 times [2022-02-24 00:38:28,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:28,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316124813] [2022-02-24 00:38:28,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:28,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:28,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:28,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:38:28,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:28,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316124813] [2022-02-24 00:38:28,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316124813] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:28,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:28,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:38:28,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830120428] [2022-02-24 00:38:28,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:28,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:38:28,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:28,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:38:28,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:38:28,699 INFO L87 Difference]: Start difference. First operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:30,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:38:31,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:31,154 INFO L93 Difference]: Finished difference Result 271 states and 444 transitions. [2022-02-24 00:38:31,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:38:31,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-02-24 00:38:31,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:31,163 INFO L225 Difference]: With dead ends: 271 [2022-02-24 00:38:31,163 INFO L226 Difference]: Without dead ends: 124 [2022-02-24 00:38:31,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:38:31,167 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 7 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:38:31,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 558 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 321 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:38:31,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-02-24 00:38:31,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2022-02-24 00:38:31,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 118 states have (on average 1.4915254237288136) internal successors, (176), 118 states have internal predecessors, (176), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:31,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 180 transitions. [2022-02-24 00:38:31,214 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 180 transitions. Word has length 30 [2022-02-24 00:38:31,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:31,215 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 180 transitions. [2022-02-24 00:38:31,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:31,216 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 180 transitions. [2022-02-24 00:38:31,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-02-24 00:38:31,217 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:31,218 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:38:31,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 00:38:31,218 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:31,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:31,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1091565072, now seen corresponding path program 1 times [2022-02-24 00:38:31,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:31,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899715063] [2022-02-24 00:38:31,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:31,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:31,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:31,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:38:31,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:31,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899715063] [2022-02-24 00:38:31,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899715063] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:31,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:31,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:38:31,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284031745] [2022-02-24 00:38:31,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:31,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:38:31,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:31,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:38:31,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:38:31,440 INFO L87 Difference]: Start difference. First operand 123 states and 180 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:33,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:38:33,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:33,705 INFO L93 Difference]: Finished difference Result 333 states and 496 transitions. [2022-02-24 00:38:33,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:38:33,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-02-24 00:38:33,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:33,708 INFO L225 Difference]: With dead ends: 333 [2022-02-24 00:38:33,708 INFO L226 Difference]: Without dead ends: 226 [2022-02-24 00:38:33,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:38:33,709 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 125 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:38:33,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 323 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-24 00:38:33,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-02-24 00:38:33,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2022-02-24 00:38:33,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.4751131221719458) internal successors, (326), 221 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:33,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 330 transitions. [2022-02-24 00:38:33,722 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 330 transitions. Word has length 45 [2022-02-24 00:38:33,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:33,723 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 330 transitions. [2022-02-24 00:38:33,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:33,723 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 330 transitions. [2022-02-24 00:38:33,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-24 00:38:33,724 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:33,725 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:38:33,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 00:38:33,725 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:33,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:33,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1300196515, now seen corresponding path program 1 times [2022-02-24 00:38:33,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:33,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4442783] [2022-02-24 00:38:33,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:33,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:33,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:33,905 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:38:33,905 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:33,905 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4442783] [2022-02-24 00:38:33,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4442783] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:33,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:33,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:38:33,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326487585] [2022-02-24 00:38:33,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:33,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:38:33,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:33,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:38:33,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:38:33,908 INFO L87 Difference]: Start difference. First operand 226 states and 330 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:35,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:38:36,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:36,267 INFO L93 Difference]: Finished difference Result 368 states and 543 transitions. [2022-02-24 00:38:36,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:38:36,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2022-02-24 00:38:36,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:36,270 INFO L225 Difference]: With dead ends: 368 [2022-02-24 00:38:36,270 INFO L226 Difference]: Without dead ends: 261 [2022-02-24 00:38:36,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:38:36,271 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 31 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:38:36,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 490 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:38:36,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-02-24 00:38:36,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 244. [2022-02-24 00:38:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.4895397489539748) internal successors, (356), 239 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:36,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 360 transitions. [2022-02-24 00:38:36,286 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 360 transitions. Word has length 60 [2022-02-24 00:38:36,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:36,287 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 360 transitions. [2022-02-24 00:38:36,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:36,287 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 360 transitions. [2022-02-24 00:38:36,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-24 00:38:36,288 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:36,288 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:38:36,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 00:38:36,289 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:36,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:36,289 INFO L85 PathProgramCache]: Analyzing trace with hash 894178960, now seen corresponding path program 2 times [2022-02-24 00:38:36,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:36,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939908293] [2022-02-24 00:38:36,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:36,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:36,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:36,463 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:38:36,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:36,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939908293] [2022-02-24 00:38:36,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939908293] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:36,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:36,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:38:36,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310544258] [2022-02-24 00:38:36,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:36,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:38:36,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:36,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:38:36,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:38:36,464 INFO L87 Difference]: Start difference. First operand 244 states and 360 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:38,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:38:38,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:38,832 INFO L93 Difference]: Finished difference Result 655 states and 976 transitions. [2022-02-24 00:38:38,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:38:38,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-02-24 00:38:38,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:38,835 INFO L225 Difference]: With dead ends: 655 [2022-02-24 00:38:38,835 INFO L226 Difference]: Without dead ends: 427 [2022-02-24 00:38:38,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:38:38,837 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 113 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:38:38,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 302 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 381 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:38:38,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-02-24 00:38:38,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 266. [2022-02-24 00:38:38,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.4827586206896552) internal successors, (387), 261 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:38,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 391 transitions. [2022-02-24 00:38:38,850 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 391 transitions. Word has length 75 [2022-02-24 00:38:38,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:38,850 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 391 transitions. [2022-02-24 00:38:38,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:38,851 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 391 transitions. [2022-02-24 00:38:38,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-24 00:38:38,860 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:38,860 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:38:38,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 00:38:38,861 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:38,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:38,861 INFO L85 PathProgramCache]: Analyzing trace with hash -765124944, now seen corresponding path program 1 times [2022-02-24 00:38:38,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:38,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459902723] [2022-02-24 00:38:38,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:38,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:39,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:39,049 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:38:39,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:39,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459902723] [2022-02-24 00:38:39,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459902723] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:39,050 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:39,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:38:39,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204740704] [2022-02-24 00:38:39,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:39,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:38:39,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:39,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:38:39,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:38:39,052 INFO L87 Difference]: Start difference. First operand 266 states and 391 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:41,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:38:41,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:41,456 INFO L93 Difference]: Finished difference Result 678 states and 1005 transitions. [2022-02-24 00:38:41,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:38:41,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-02-24 00:38:41,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:41,458 INFO L225 Difference]: With dead ends: 678 [2022-02-24 00:38:41,458 INFO L226 Difference]: Without dead ends: 428 [2022-02-24 00:38:41,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:38:41,459 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 120 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:38:41,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:38:41,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-02-24 00:38:41,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 268. [2022-02-24 00:38:41,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.4752851711026616) internal successors, (388), 263 states have internal predecessors, (388), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:41,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 392 transitions. [2022-02-24 00:38:41,470 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 392 transitions. Word has length 75 [2022-02-24 00:38:41,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:41,470 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 392 transitions. [2022-02-24 00:38:41,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:41,470 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 392 transitions. [2022-02-24 00:38:41,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-24 00:38:41,471 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:41,471 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:38:41,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 00:38:41,471 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:41,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:41,472 INFO L85 PathProgramCache]: Analyzing trace with hash 420689370, now seen corresponding path program 1 times [2022-02-24 00:38:41,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:41,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801413044] [2022-02-24 00:38:41,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:41,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:41,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:38:41,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:41,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801413044] [2022-02-24 00:38:41,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801413044] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:41,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:41,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:38:41,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166503100] [2022-02-24 00:38:41,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:41,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:38:41,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:41,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:38:41,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:38:41,648 INFO L87 Difference]: Start difference. First operand 268 states and 392 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:43,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:38:44,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:44,073 INFO L93 Difference]: Finished difference Result 680 states and 1003 transitions. [2022-02-24 00:38:44,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:38:44,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2022-02-24 00:38:44,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:44,076 INFO L225 Difference]: With dead ends: 680 [2022-02-24 00:38:44,076 INFO L226 Difference]: Without dead ends: 428 [2022-02-24 00:38:44,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:38:44,077 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 118 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:38:44,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 306 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:38:44,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-02-24 00:38:44,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 270. [2022-02-24 00:38:44,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.4679245283018867) internal successors, (389), 265 states have internal predecessors, (389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:44,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 393 transitions. [2022-02-24 00:38:44,086 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 393 transitions. Word has length 76 [2022-02-24 00:38:44,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:44,086 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 393 transitions. [2022-02-24 00:38:44,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:44,086 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 393 transitions. [2022-02-24 00:38:44,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-24 00:38:44,087 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:44,087 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:38:44,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 00:38:44,087 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:44,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:44,088 INFO L85 PathProgramCache]: Analyzing trace with hash -70572812, now seen corresponding path program 1 times [2022-02-24 00:38:44,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:44,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877068535] [2022-02-24 00:38:44,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:44,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:44,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:44,236 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:38:44,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:44,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877068535] [2022-02-24 00:38:44,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877068535] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:44,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:44,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:38:44,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841413558] [2022-02-24 00:38:44,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:44,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:38:44,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:44,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:38:44,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:38:44,238 INFO L87 Difference]: Start difference. First operand 270 states and 393 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:46,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:38:46,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:46,625 INFO L93 Difference]: Finished difference Result 682 states and 1001 transitions. [2022-02-24 00:38:46,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:38:46,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-02-24 00:38:46,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:46,627 INFO L225 Difference]: With dead ends: 682 [2022-02-24 00:38:46,627 INFO L226 Difference]: Without dead ends: 428 [2022-02-24 00:38:46,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:38:46,628 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 116 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:38:46,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:38:46,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-02-24 00:38:46,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 272. [2022-02-24 00:38:46,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 267 states have (on average 1.4606741573033708) internal successors, (390), 267 states have internal predecessors, (390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:46,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 394 transitions. [2022-02-24 00:38:46,635 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 394 transitions. Word has length 77 [2022-02-24 00:38:46,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:46,636 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 394 transitions. [2022-02-24 00:38:46,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:46,636 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 394 transitions. [2022-02-24 00:38:46,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-24 00:38:46,637 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:46,637 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:38:46,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 00:38:46,637 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:46,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:46,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1362398755, now seen corresponding path program 1 times [2022-02-24 00:38:46,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:46,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052738695] [2022-02-24 00:38:46,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:46,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:46,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:46,766 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:38:46,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:46,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052738695] [2022-02-24 00:38:46,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052738695] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:46,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:46,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:38:46,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105591434] [2022-02-24 00:38:46,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:46,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:38:46,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:46,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:38:46,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:38:46,768 INFO L87 Difference]: Start difference. First operand 272 states and 394 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:48,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:38:49,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:49,131 INFO L93 Difference]: Finished difference Result 684 states and 999 transitions. [2022-02-24 00:38:49,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:38:49,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-02-24 00:38:49,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:49,133 INFO L225 Difference]: With dead ends: 684 [2022-02-24 00:38:49,133 INFO L226 Difference]: Without dead ends: 428 [2022-02-24 00:38:49,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:38:49,134 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 114 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:38:49,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:38:49,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-02-24 00:38:49,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 274. [2022-02-24 00:38:49,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.453531598513011) internal successors, (391), 269 states have internal predecessors, (391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:49,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 395 transitions. [2022-02-24 00:38:49,141 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 395 transitions. Word has length 78 [2022-02-24 00:38:49,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:49,141 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 395 transitions. [2022-02-24 00:38:49,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:49,142 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 395 transitions. [2022-02-24 00:38:49,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-24 00:38:49,142 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:49,142 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:38:49,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 00:38:49,143 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:49,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:49,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1733724060, now seen corresponding path program 1 times [2022-02-24 00:38:49,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:49,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971670443] [2022-02-24 00:38:49,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:49,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:49,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:49,269 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-02-24 00:38:49,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:49,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971670443] [2022-02-24 00:38:49,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971670443] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:49,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:49,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:38:49,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876298251] [2022-02-24 00:38:49,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:49,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:38:49,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:49,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:38:49,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:38:49,272 INFO L87 Difference]: Start difference. First operand 274 states and 395 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:51,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:38:51,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:51,667 INFO L93 Difference]: Finished difference Result 551 states and 803 transitions. [2022-02-24 00:38:51,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:38:51,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-02-24 00:38:51,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:51,670 INFO L225 Difference]: With dead ends: 551 [2022-02-24 00:38:51,670 INFO L226 Difference]: Without dead ends: 411 [2022-02-24 00:38:51,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:38:51,671 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 128 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:38:51,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 483 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:38:51,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-02-24 00:38:51,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2022-02-24 00:38:51,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 406 states have (on average 1.4482758620689655) internal successors, (588), 406 states have internal predecessors, (588), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:51,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 592 transitions. [2022-02-24 00:38:51,680 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 592 transitions. Word has length 78 [2022-02-24 00:38:51,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:51,681 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 592 transitions. [2022-02-24 00:38:51,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:51,681 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 592 transitions. [2022-02-24 00:38:51,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-24 00:38:51,683 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:51,683 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:38:51,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 00:38:51,683 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:51,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:51,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1702704253, now seen corresponding path program 1 times [2022-02-24 00:38:51,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:51,684 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398126639] [2022-02-24 00:38:51,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:51,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:51,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:51,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:51,797 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:38:51,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:51,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398126639] [2022-02-24 00:38:51,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398126639] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:51,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:51,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:38:51,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929962590] [2022-02-24 00:38:51,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:51,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:38:51,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:51,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:38:51,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:38:51,798 INFO L87 Difference]: Start difference. First operand 411 states and 592 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:53,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:38:54,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:54,030 INFO L93 Difference]: Finished difference Result 712 states and 1028 transitions. [2022-02-24 00:38:54,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:38:54,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-02-24 00:38:54,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:54,032 INFO L225 Difference]: With dead ends: 712 [2022-02-24 00:38:54,032 INFO L226 Difference]: Without dead ends: 435 [2022-02-24 00:38:54,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:38:54,033 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 15 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:38:54,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 363 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 215 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-24 00:38:54,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-02-24 00:38:54,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2022-02-24 00:38:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 430 states have (on average 1.441860465116279) internal successors, (620), 430 states have internal predecessors, (620), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:54,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 624 transitions. [2022-02-24 00:38:54,042 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 624 transitions. Word has length 78 [2022-02-24 00:38:54,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:54,042 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 624 transitions. [2022-02-24 00:38:54,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:54,042 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 624 transitions. [2022-02-24 00:38:54,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-24 00:38:54,044 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:54,044 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:38:54,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 00:38:54,044 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:54,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:54,044 INFO L85 PathProgramCache]: Analyzing trace with hash -283396127, now seen corresponding path program 1 times [2022-02-24 00:38:54,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:54,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484441257] [2022-02-24 00:38:54,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:54,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:54,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:54,189 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-24 00:38:54,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:54,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484441257] [2022-02-24 00:38:54,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484441257] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:54,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:54,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:38:54,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617941051] [2022-02-24 00:38:54,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:54,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:38:54,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:54,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:38:54,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:38:54,191 INFO L87 Difference]: Start difference. First operand 435 states and 624 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:56,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:38:56,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:56,584 INFO L93 Difference]: Finished difference Result 872 states and 1260 transitions. [2022-02-24 00:38:56,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:38:56,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-02-24 00:38:56,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:56,587 INFO L225 Difference]: With dead ends: 872 [2022-02-24 00:38:56,587 INFO L226 Difference]: Without dead ends: 571 [2022-02-24 00:38:56,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:38:56,588 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 128 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:38:56,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 482 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:38:56,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-02-24 00:38:56,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2022-02-24 00:38:56,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 566 states have (on average 1.441696113074205) internal successors, (816), 566 states have internal predecessors, (816), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:56,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 820 transitions. [2022-02-24 00:38:56,600 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 820 transitions. Word has length 98 [2022-02-24 00:38:56,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:56,600 INFO L470 AbstractCegarLoop]: Abstraction has 571 states and 820 transitions. [2022-02-24 00:38:56,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:56,600 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 820 transitions. [2022-02-24 00:38:56,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-02-24 00:38:56,601 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:56,601 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:38:56,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 00:38:56,601 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:56,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:56,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1286229179, now seen corresponding path program 1 times [2022-02-24 00:38:56,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:56,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557282702] [2022-02-24 00:38:56,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:56,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:56,720 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-02-24 00:38:56,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:56,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557282702] [2022-02-24 00:38:56,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557282702] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:56,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:56,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:38:56,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990976519] [2022-02-24 00:38:56,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:56,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:38:56,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:56,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:38:56,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:38:56,721 INFO L87 Difference]: Start difference. First operand 571 states and 820 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:58,731 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 [] [2022-02-24 00:38:59,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:59,095 INFO L93 Difference]: Finished difference Result 1143 states and 1650 transitions. [2022-02-24 00:38:59,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:38:59,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-02-24 00:38:59,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:59,114 INFO L225 Difference]: With dead ends: 1143 [2022-02-24 00:38:59,114 INFO L226 Difference]: Without dead ends: 706 [2022-02-24 00:38:59,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:38:59,115 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 126 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:38:59,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 480 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:38:59,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-02-24 00:38:59,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2022-02-24 00:38:59,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 701 states have (on average 1.4407988587731813) internal successors, (1010), 701 states have internal predecessors, (1010), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:59,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1014 transitions. [2022-02-24 00:38:59,130 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 1014 transitions. Word has length 119 [2022-02-24 00:38:59,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:59,130 INFO L470 AbstractCegarLoop]: Abstraction has 706 states and 1014 transitions. [2022-02-24 00:38:59,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:38:59,131 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 1014 transitions. [2022-02-24 00:38:59,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-24 00:38:59,132 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:59,132 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:38:59,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 00:38:59,132 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:59,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:59,133 INFO L85 PathProgramCache]: Analyzing trace with hash -768225432, now seen corresponding path program 1 times [2022-02-24 00:38:59,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:59,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144905797] [2022-02-24 00:38:59,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:59,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:59,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:59,265 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-02-24 00:38:59,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:59,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144905797] [2022-02-24 00:38:59,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144905797] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:59,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:59,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:38:59,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65281825] [2022-02-24 00:38:59,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:59,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:38:59,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:59,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:38:59,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:38:59,266 INFO L87 Difference]: Start difference. First operand 706 states and 1014 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:01,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:39:01,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:01,644 INFO L93 Difference]: Finished difference Result 1567 states and 2247 transitions. [2022-02-24 00:39:01,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:01,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-02-24 00:39:01,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:01,648 INFO L225 Difference]: With dead ends: 1567 [2022-02-24 00:39:01,648 INFO L226 Difference]: Without dead ends: 877 [2022-02-24 00:39:01,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:39:01,650 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 37 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:01,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 509 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:39:01,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2022-02-24 00:39:01,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 802. [2022-02-24 00:39:01,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 797 states have (on average 1.452948557089084) internal successors, (1158), 797 states have internal predecessors, (1158), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:01,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1162 transitions. [2022-02-24 00:39:01,665 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1162 transitions. Word has length 145 [2022-02-24 00:39:01,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:01,665 INFO L470 AbstractCegarLoop]: Abstraction has 802 states and 1162 transitions. [2022-02-24 00:39:01,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:01,665 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1162 transitions. [2022-02-24 00:39:01,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-02-24 00:39:01,667 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:01,667 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2022-02-24 00:39:01,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 00:39:01,667 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:01,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:01,668 INFO L85 PathProgramCache]: Analyzing trace with hash -722871794, now seen corresponding path program 1 times [2022-02-24 00:39:01,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:01,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455515683] [2022-02-24 00:39:01,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:01,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:01,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:01,851 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:39:01,851 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:01,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455515683] [2022-02-24 00:39:01,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455515683] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:01,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:01,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:01,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863597801] [2022-02-24 00:39:01,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:01,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:01,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:01,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:01,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:01,853 INFO L87 Difference]: Start difference. First operand 802 states and 1162 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:03,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:39:04,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:04,313 INFO L93 Difference]: Finished difference Result 2001 states and 2906 transitions. [2022-02-24 00:39:04,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:04,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-02-24 00:39:04,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:04,317 INFO L225 Difference]: With dead ends: 2001 [2022-02-24 00:39:04,317 INFO L226 Difference]: Without dead ends: 1215 [2022-02-24 00:39:04,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:39:04,319 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 90 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:04,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 564 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 523 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:39:04,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2022-02-24 00:39:04,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 907. [2022-02-24 00:39:04,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 902 states have (on average 1.4501108647450112) internal successors, (1308), 902 states have internal predecessors, (1308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:04,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1312 transitions. [2022-02-24 00:39:04,336 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1312 transitions. Word has length 163 [2022-02-24 00:39:04,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:04,336 INFO L470 AbstractCegarLoop]: Abstraction has 907 states and 1312 transitions. [2022-02-24 00:39:04,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:04,336 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1312 transitions. [2022-02-24 00:39:04,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-02-24 00:39:04,338 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:04,338 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:39:04,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 00:39:04,338 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:04,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:04,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1242164081, now seen corresponding path program 1 times [2022-02-24 00:39:04,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:04,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465167804] [2022-02-24 00:39:04,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:04,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:04,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:04,524 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 229 proven. 1 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-02-24 00:39:04,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:04,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465167804] [2022-02-24 00:39:04,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465167804] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:39:04,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585098055] [2022-02-24 00:39:04,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:04,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:39:04,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:39:04,526 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:39:04,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-24 00:39:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:05,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-24 00:39:05,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:39:05,219 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-24 00:39:05,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-02-24 00:39:05,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-02-24 00:39:05,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-24 00:39:05,255 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