/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/openssl/s3_clnt.blast.03.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 16:23:58,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 16:23:58,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 16:23:58,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 16:23:58,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 16:23:58,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 16:23:58,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 16:23:58,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 16:23:58,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 16:23:58,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 16:23:58,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 16:23:58,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 16:23:58,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 16:23:58,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 16:23:58,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 16:23:58,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 16:23:58,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 16:23:58,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 16:23:58,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 16:23:58,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 16:23:58,807 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 16:23:58,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 16:23:58,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 16:23:58,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 16:23:58,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 16:23:58,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-18 16:23:58,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-18 16:23:58,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-18 16:23:58,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-18 16:23:58,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-18 16:23:58,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-18 16:23:58,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-18 16:23:58,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-18 16:23:58,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-18 16:23:58,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-18 16:23:58,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-18 16:23:58,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-18 16:23:58,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-18 16:23:58,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-18 16:23:58,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 16:23:58,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 16:23:58,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 16:23:58,823 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-18 16:23:58,849 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 16:23:58,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 16:23:58,850 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-18 16:23:58,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-18 16:23:58,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-18 16:23:58,851 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-18 16:23:58,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-18 16:23:58,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-18 16:23:58,852 INFO L138 SettingsManager]: * Use SBE=true [2022-03-18 16:23:58,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 16:23:58,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 16:23:58,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 16:23:58,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 16:23:58,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 16:23:58,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 16:23:58,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 16:23:58,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 16:23:58,854 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 16:23:58,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 16:23:58,854 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 16:23:58,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 16:23:58,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 16:23:58,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 16:23:58,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 16:23:58,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 16:23:58,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 16:23:58,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-18 16:23:58,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-18 16:23:58,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 16:23:58,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-18 16:23:58,855 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-18 16:23:58,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-18 16:23:58,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-18 16:23:58,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 16:23:59,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 16:23:59,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 16:23:59,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 16:23:59,052 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 16:23:59,053 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 16:23:59,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.03.i.cil-2.c [2022-03-18 16:23:59,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6455d307d/bdcd5d3f549d4a449711c96680486238/FLAG38be17f90 [2022-03-18 16:23:59,554 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 16:23:59,555 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.03.i.cil-2.c [2022-03-18 16:23:59,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6455d307d/bdcd5d3f549d4a449711c96680486238/FLAG38be17f90 [2022-03-18 16:23:59,595 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6455d307d/bdcd5d3f549d4a449711c96680486238 [2022-03-18 16:23:59,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 16:23:59,598 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-18 16:23:59,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 16:23:59,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 16:23:59,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 16:23:59,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 04:23:59" (1/1) ... [2022-03-18 16:23:59,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@691cb088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:23:59, skipping insertion in model container [2022-03-18 16:23:59,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 04:23:59" (1/1) ... [2022-03-18 16:23:59,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 16:23:59,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 16:23:59,901 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.03.i.cil-2.c[65397,65410] [2022-03-18 16:23:59,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 16:23:59,931 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 16:24:00,037 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.03.i.cil-2.c[65397,65410] [2022-03-18 16:24:00,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 16:24:00,051 INFO L208 MainTranslator]: Completed translation [2022-03-18 16:24:00,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:24:00 WrapperNode [2022-03-18 16:24:00,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 16:24:00,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 16:24:00,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 16:24:00,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 16:24:00,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:24:00" (1/1) ... [2022-03-18 16:24:00,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:24:00" (1/1) ... [2022-03-18 16:24:00,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:24:00" (1/1) ... [2022-03-18 16:24:00,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:24:00" (1/1) ... [2022-03-18 16:24:00,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:24:00" (1/1) ... [2022-03-18 16:24:00,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:24:00" (1/1) ... [2022-03-18 16:24:00,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:24:00" (1/1) ... [2022-03-18 16:24:00,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 16:24:00,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 16:24:00,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 16:24:00,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 16:24:00,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:24:00" (1/1) ... [2022-03-18 16:24:00,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 16:24:00,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:24:00,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-18 16:24:00,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-18 16:24:00,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 16:24:00,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 16:24:00,200 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 16:24:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-18 16:24:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-18 16:24:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 16:24:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-18 16:24:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-18 16:24:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-18 16:24:00,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-18 16:24:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 16:24:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 16:24:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 16:24:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 16:24:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-18 16:24:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 16:24:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 16:24:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-18 16:24:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 16:24:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 16:24:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 16:24:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-18 16:24:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-18 16:24:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-18 16:24:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-18 16:24:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 16:24:00,357 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 16:24:00,358 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 16:24:01,429 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 16:24:01,755 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-18 16:24:01,756 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-18 16:24:01,773 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 16:24:01,778 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 16:24:01,778 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 16:24:01,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 04:24:01 BoogieIcfgContainer [2022-03-18 16:24:01,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 16:24:01,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 16:24:01,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 16:24:01,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 16:24:01,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 04:23:59" (1/3) ... [2022-03-18 16:24:01,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f6ab60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 04:24:01, skipping insertion in model container [2022-03-18 16:24:01,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:24:00" (2/3) ... [2022-03-18 16:24:01,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f6ab60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 04:24:01, skipping insertion in model container [2022-03-18 16:24:01,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 04:24:01" (3/3) ... [2022-03-18 16:24:01,788 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.03.i.cil-2.c [2022-03-18 16:24:01,791 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-18 16:24:01,791 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 16:24:01,824 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 16:24:01,828 INFO L340 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=PETRI_NET, 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 [2022-03-18 16:24:01,828 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 16:24:01,843 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-18 16:24:01,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-18 16:24:01,848 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:01,849 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:01,849 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:01,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:01,852 INFO L85 PathProgramCache]: Analyzing trace with hash -22644822, now seen corresponding path program 1 times [2022-03-18 16:24:01,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:01,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881548076] [2022-03-18 16:24:01,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:01,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:02,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:02,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:24:02,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:02,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881548076] [2022-03-18 16:24:02,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881548076] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:02,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:02,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:02,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359817715] [2022-03-18 16:24:02,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:02,339 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:02,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:02,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:02,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:02,358 INFO L87 Difference]: Start difference. First operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:04,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:04,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:04,804 INFO L93 Difference]: Finished difference Result 267 states and 442 transitions. [2022-03-18 16:24:04,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:04,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-03-18 16:24:04,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:04,812 INFO L225 Difference]: With dead ends: 267 [2022-03-18 16:24:04,812 INFO L226 Difference]: Without dead ends: 122 [2022-03-18 16:24:04,814 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:04,816 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:04,817 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:24:04,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-03-18 16:24:04,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-03-18 16:24:04,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 116 states have (on average 1.5) internal successors, (174), 116 states have internal predecessors, (174), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:04,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-03-18 16:24:04,867 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-03-18 16:24:04,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:04,868 INFO L478 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-03-18 16:24:04,868 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:04,868 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-03-18 16:24:04,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-18 16:24:04,869 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:04,869 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:04,869 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 16:24:04,869 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:04,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:04,870 INFO L85 PathProgramCache]: Analyzing trace with hash 868047042, now seen corresponding path program 1 times [2022-03-18 16:24:04,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:04,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688696920] [2022-03-18 16:24:04,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:04,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:05,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:05,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 16:24:05,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:05,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688696920] [2022-03-18 16:24:05,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688696920] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:05,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:05,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:24:05,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577796545] [2022-03-18 16:24:05,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:05,094 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:24:05,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:05,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:24:05,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:24:05,095 INFO L87 Difference]: Start difference. First operand 121 states and 178 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:07,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:07,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:07,383 INFO L93 Difference]: Finished difference Result 327 states and 490 transitions. [2022-03-18 16:24:07,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:24:07,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-03-18 16:24:07,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:07,385 INFO L225 Difference]: With dead ends: 327 [2022-03-18 16:24:07,385 INFO L226 Difference]: Without dead ends: 222 [2022-03-18 16:24:07,386 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:24:07,387 INFO L912 BasicCegarLoop]: 166 mSDtfsCounter, 124 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:07,387 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 319 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:24:07,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-03-18 16:24:07,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-03-18 16:24:07,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.4838709677419355) internal successors, (322), 217 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:07,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 326 transitions. [2022-03-18 16:24:07,398 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 326 transitions. Word has length 44 [2022-03-18 16:24:07,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:07,398 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 326 transitions. [2022-03-18 16:24:07,398 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:07,399 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 326 transitions. [2022-03-18 16:24:07,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-18 16:24:07,400 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:07,400 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:07,400 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 16:24:07,400 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:07,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:07,401 INFO L85 PathProgramCache]: Analyzing trace with hash -446115060, now seen corresponding path program 1 times [2022-03-18 16:24:07,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:07,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426478820] [2022-03-18 16:24:07,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:07,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:07,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:07,591 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 16:24:07,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:07,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426478820] [2022-03-18 16:24:07,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426478820] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:07,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:07,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:07,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013170033] [2022-03-18 16:24:07,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:07,592 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:07,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:07,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:07,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:07,593 INFO L87 Difference]: Start difference. First operand 222 states and 326 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:09,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:09,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:09,933 INFO L93 Difference]: Finished difference Result 363 states and 539 transitions. [2022-03-18 16:24:09,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:09,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-03-18 16:24:09,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:09,935 INFO L225 Difference]: With dead ends: 363 [2022-03-18 16:24:09,935 INFO L226 Difference]: Without dead ends: 258 [2022-03-18 16:24:09,935 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:09,936 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 33 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:09,936 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 486 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 360 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:24:09,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-03-18 16:24:09,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 240. [2022-03-18 16:24:09,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 235 states have (on average 1.4978723404255319) internal successors, (352), 235 states have internal predecessors, (352), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:09,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 356 transitions. [2022-03-18 16:24:09,945 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 356 transitions. Word has length 59 [2022-03-18 16:24:09,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:09,945 INFO L478 AbstractCegarLoop]: Abstraction has 240 states and 356 transitions. [2022-03-18 16:24:09,945 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:09,945 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 356 transitions. [2022-03-18 16:24:09,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-18 16:24:09,947 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:09,947 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:09,947 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 16:24:09,947 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:09,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:09,948 INFO L85 PathProgramCache]: Analyzing trace with hash -2084364124, now seen corresponding path program 2 times [2022-03-18 16:24:09,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:09,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66886169] [2022-03-18 16:24:09,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:09,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:10,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:10,131 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 16:24:10,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:10,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66886169] [2022-03-18 16:24:10,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66886169] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:10,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:10,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:10,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103332054] [2022-03-18 16:24:10,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:10,135 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:10,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:10,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:10,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:10,135 INFO L87 Difference]: Start difference. First operand 240 states and 356 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:12,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:12,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:12,473 INFO L93 Difference]: Finished difference Result 380 states and 567 transitions. [2022-03-18 16:24:12,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:12,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-03-18 16:24:12,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:12,474 INFO L225 Difference]: With dead ends: 380 [2022-03-18 16:24:12,474 INFO L226 Difference]: Without dead ends: 257 [2022-03-18 16:24:12,475 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:12,475 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 39 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:12,476 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 486 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:24:12,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-18 16:24:12,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 240. [2022-03-18 16:24:12,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 235 states have (on average 1.4936170212765958) internal successors, (351), 235 states have internal predecessors, (351), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:12,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 355 transitions. [2022-03-18 16:24:12,483 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 355 transitions. Word has length 73 [2022-03-18 16:24:12,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:12,483 INFO L478 AbstractCegarLoop]: Abstraction has 240 states and 355 transitions. [2022-03-18 16:24:12,483 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:12,483 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 355 transitions. [2022-03-18 16:24:12,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-18 16:24:12,484 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:12,485 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:12,502 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-18 16:24:12,504 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:12,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:12,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1101622726, now seen corresponding path program 1 times [2022-03-18 16:24:12,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:12,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408824291] [2022-03-18 16:24:12,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:12,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:12,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:12,650 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 16:24:12,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:12,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408824291] [2022-03-18 16:24:12,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408824291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:12,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:12,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:12,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035118444] [2022-03-18 16:24:12,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:12,651 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:12,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:12,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:12,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:12,652 INFO L87 Difference]: Start difference. First operand 240 states and 355 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:14,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:15,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:15,050 INFO L93 Difference]: Finished difference Result 647 states and 966 transitions. [2022-03-18 16:24:15,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:15,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-03-18 16:24:15,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:15,052 INFO L225 Difference]: With dead ends: 647 [2022-03-18 16:24:15,052 INFO L226 Difference]: Without dead ends: 423 [2022-03-18 16:24:15,053 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:15,053 INFO L912 BasicCegarLoop]: 97 mSDtfsCounter, 119 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:15,053 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:24:15,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-03-18 16:24:15,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 264. [2022-03-18 16:24:15,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 1.4903474903474903) internal successors, (386), 259 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:15,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 390 transitions. [2022-03-18 16:24:15,070 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 390 transitions. Word has length 73 [2022-03-18 16:24:15,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:15,071 INFO L478 AbstractCegarLoop]: Abstraction has 264 states and 390 transitions. [2022-03-18 16:24:15,071 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:15,071 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 390 transitions. [2022-03-18 16:24:15,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-18 16:24:15,072 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:15,072 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:15,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-18 16:24:15,072 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:15,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:15,072 INFO L85 PathProgramCache]: Analyzing trace with hash -155040791, now seen corresponding path program 1 times [2022-03-18 16:24:15,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:15,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386406985] [2022-03-18 16:24:15,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:15,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:15,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:15,236 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 16:24:15,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:15,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386406985] [2022-03-18 16:24:15,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386406985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:15,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:15,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:15,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141473895] [2022-03-18 16:24:15,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:15,237 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:15,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:15,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:15,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:15,239 INFO L87 Difference]: Start difference. First operand 264 states and 390 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:17,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:17,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:17,573 INFO L93 Difference]: Finished difference Result 416 states and 617 transitions. [2022-03-18 16:24:17,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:17,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-03-18 16:24:17,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:17,574 INFO L225 Difference]: With dead ends: 416 [2022-03-18 16:24:17,574 INFO L226 Difference]: Without dead ends: 281 [2022-03-18 16:24:17,575 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:17,575 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 35 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:17,575 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 482 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:24:17,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-03-18 16:24:17,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 264. [2022-03-18 16:24:17,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 1.4864864864864864) internal successors, (385), 259 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:17,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 389 transitions. [2022-03-18 16:24:17,582 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 389 transitions. Word has length 74 [2022-03-18 16:24:17,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:17,582 INFO L478 AbstractCegarLoop]: Abstraction has 264 states and 389 transitions. [2022-03-18 16:24:17,582 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:17,582 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 389 transitions. [2022-03-18 16:24:17,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-18 16:24:17,583 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:17,583 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:17,583 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-18 16:24:17,583 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:17,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:17,584 INFO L85 PathProgramCache]: Analyzing trace with hash -400323519, now seen corresponding path program 1 times [2022-03-18 16:24:17,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:17,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741712534] [2022-03-18 16:24:17,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:17,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:17,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:17,729 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 16:24:17,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:17,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741712534] [2022-03-18 16:24:17,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741712534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:17,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:17,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:17,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991244736] [2022-03-18 16:24:17,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:17,730 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:17,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:17,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:17,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:17,730 INFO L87 Difference]: Start difference. First operand 264 states and 389 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:19,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:20,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:20,064 INFO L93 Difference]: Finished difference Result 416 states and 615 transitions. [2022-03-18 16:24:20,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:20,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-03-18 16:24:20,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:20,066 INFO L225 Difference]: With dead ends: 416 [2022-03-18 16:24:20,066 INFO L226 Difference]: Without dead ends: 281 [2022-03-18 16:24:20,066 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:20,067 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 33 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:20,067 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 480 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:24:20,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-03-18 16:24:20,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 264. [2022-03-18 16:24:20,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 1.4826254826254825) internal successors, (384), 259 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:20,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 388 transitions. [2022-03-18 16:24:20,073 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 388 transitions. Word has length 75 [2022-03-18 16:24:20,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:20,073 INFO L478 AbstractCegarLoop]: Abstraction has 264 states and 388 transitions. [2022-03-18 16:24:20,073 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:20,073 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 388 transitions. [2022-03-18 16:24:20,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-03-18 16:24:20,074 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:20,074 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:20,074 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-18 16:24:20,074 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:20,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:20,075 INFO L85 PathProgramCache]: Analyzing trace with hash 642427140, now seen corresponding path program 1 times [2022-03-18 16:24:20,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:20,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838325721] [2022-03-18 16:24:20,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:20,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:20,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:20,240 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 16:24:20,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:20,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838325721] [2022-03-18 16:24:20,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838325721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:20,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:20,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:20,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125132840] [2022-03-18 16:24:20,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:20,243 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:20,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:20,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:20,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:20,244 INFO L87 Difference]: Start difference. First operand 264 states and 388 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:22,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:22,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:22,620 INFO L93 Difference]: Finished difference Result 671 states and 994 transitions. [2022-03-18 16:24:22,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:22,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2022-03-18 16:24:22,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:22,622 INFO L225 Difference]: With dead ends: 671 [2022-03-18 16:24:22,622 INFO L226 Difference]: Without dead ends: 423 [2022-03-18 16:24:22,622 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:22,623 INFO L912 BasicCegarLoop]: 97 mSDtfsCounter, 115 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:22,623 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:24:22,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-03-18 16:24:22,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 270. [2022-03-18 16:24:22,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.4830188679245282) internal successors, (393), 265 states have internal predecessors, (393), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:22,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 397 transitions. [2022-03-18 16:24:22,630 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 397 transitions. Word has length 76 [2022-03-18 16:24:22,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:22,630 INFO L478 AbstractCegarLoop]: Abstraction has 270 states and 397 transitions. [2022-03-18 16:24:22,630 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:22,630 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 397 transitions. [2022-03-18 16:24:22,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-18 16:24:22,632 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:22,632 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:22,632 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-18 16:24:22,632 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:22,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:22,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1188358039, now seen corresponding path program 1 times [2022-03-18 16:24:22,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:22,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048859440] [2022-03-18 16:24:22,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:22,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:22,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:22,761 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-03-18 16:24:22,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:22,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048859440] [2022-03-18 16:24:22,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048859440] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:22,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:22,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:24:22,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535251575] [2022-03-18 16:24:22,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:22,762 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:24:22,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:22,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:24:22,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:24:22,763 INFO L87 Difference]: Start difference. First operand 270 states and 397 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:24,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:25,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:25,135 INFO L93 Difference]: Finished difference Result 543 states and 807 transitions. [2022-03-18 16:24:25,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:24:25,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-03-18 16:24:25,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:25,137 INFO L225 Difference]: With dead ends: 543 [2022-03-18 16:24:25,137 INFO L226 Difference]: Without dead ends: 405 [2022-03-18 16:24:25,138 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:24:25,138 INFO L912 BasicCegarLoop]: 315 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:25,138 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 477 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:24:25,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-03-18 16:24:25,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2022-03-18 16:24:25,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 400 states have (on average 1.4775) internal successors, (591), 400 states have internal predecessors, (591), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:25,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 595 transitions. [2022-03-18 16:24:25,169 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 595 transitions. Word has length 77 [2022-03-18 16:24:25,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:25,169 INFO L478 AbstractCegarLoop]: Abstraction has 405 states and 595 transitions. [2022-03-18 16:24:25,169 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:25,169 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 595 transitions. [2022-03-18 16:24:25,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-18 16:24:25,169 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:25,170 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:25,170 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-18 16:24:25,170 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:25,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:25,170 INFO L85 PathProgramCache]: Analyzing trace with hash -979274608, now seen corresponding path program 1 times [2022-03-18 16:24:25,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:25,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850476852] [2022-03-18 16:24:25,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:25,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:25,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:25,278 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 16:24:25,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:25,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850476852] [2022-03-18 16:24:25,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850476852] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:25,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:25,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:24:25,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829914366] [2022-03-18 16:24:25,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:25,279 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:24:25,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:25,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:24:25,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:24:25,279 INFO L87 Difference]: Start difference. First operand 405 states and 595 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:27,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:27,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:27,509 INFO L93 Difference]: Finished difference Result 702 states and 1033 transitions. [2022-03-18 16:24:27,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:24:27,510 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-18 16:24:27,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:27,511 INFO L225 Difference]: With dead ends: 702 [2022-03-18 16:24:27,511 INFO L226 Difference]: Without dead ends: 429 [2022-03-18 16:24:27,512 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:24:27,512 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 15 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:27,512 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 359 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 16:24:27,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-03-18 16:24:27,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2022-03-18 16:24:27,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.4693396226415094) internal successors, (623), 424 states have internal predecessors, (623), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:27,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 627 transitions. [2022-03-18 16:24:27,520 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 627 transitions. Word has length 78 [2022-03-18 16:24:27,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:27,521 INFO L478 AbstractCegarLoop]: Abstraction has 429 states and 627 transitions. [2022-03-18 16:24:27,521 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:27,521 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 627 transitions. [2022-03-18 16:24:27,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-18 16:24:27,522 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:27,522 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:27,522 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-18 16:24:27,522 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:27,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:27,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1809534672, now seen corresponding path program 1 times [2022-03-18 16:24:27,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:27,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771749506] [2022-03-18 16:24:27,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:27,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:27,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:27,667 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-18 16:24:27,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:27,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771749506] [2022-03-18 16:24:27,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771749506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:27,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:27,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:24:27,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005566338] [2022-03-18 16:24:27,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:27,668 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:24:27,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:27,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:24:27,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:24:27,668 INFO L87 Difference]: Start difference. First operand 429 states and 627 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:29,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:30,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:30,054 INFO L93 Difference]: Finished difference Result 860 states and 1266 transitions. [2022-03-18 16:24:30,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:24:30,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-18 16:24:30,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:30,056 INFO L225 Difference]: With dead ends: 860 [2022-03-18 16:24:30,056 INFO L226 Difference]: Without dead ends: 563 [2022-03-18 16:24:30,057 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:24:30,057 INFO L912 BasicCegarLoop]: 314 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:30,058 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 476 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:24:30,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-03-18 16:24:30,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2022-03-18 16:24:30,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 558 states have (on average 1.4695340501792116) internal successors, (820), 558 states have internal predecessors, (820), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:30,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 824 transitions. [2022-03-18 16:24:30,067 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 824 transitions. Word has length 97 [2022-03-18 16:24:30,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:30,067 INFO L478 AbstractCegarLoop]: Abstraction has 563 states and 824 transitions. [2022-03-18 16:24:30,067 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:30,067 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 824 transitions. [2022-03-18 16:24:30,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-18 16:24:30,068 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:30,068 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:30,068 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-18 16:24:30,068 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:30,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:30,068 INFO L85 PathProgramCache]: Analyzing trace with hash -120492913, now seen corresponding path program 1 times [2022-03-18 16:24:30,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:30,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842831165] [2022-03-18 16:24:30,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:30,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:30,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:30,203 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-18 16:24:30,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:30,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842831165] [2022-03-18 16:24:30,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842831165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:30,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:30,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:24:30,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486732812] [2022-03-18 16:24:30,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:30,203 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:24:30,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:30,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:24:30,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:24:30,204 INFO L87 Difference]: Start difference. First operand 563 states and 824 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:32,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:32,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:32,576 INFO L93 Difference]: Finished difference Result 1127 states and 1658 transitions. [2022-03-18 16:24:32,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:24:32,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-18 16:24:32,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:32,578 INFO L225 Difference]: With dead ends: 1127 [2022-03-18 16:24:32,578 INFO L226 Difference]: Without dead ends: 696 [2022-03-18 16:24:32,579 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:24:32,579 INFO L912 BasicCegarLoop]: 312 mSDtfsCounter, 124 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:32,580 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 474 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 336 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:24:32,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-03-18 16:24:32,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696. [2022-03-18 16:24:32,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 691 states have (on average 1.4688856729377713) internal successors, (1015), 691 states have internal predecessors, (1015), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:32,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 1019 transitions. [2022-03-18 16:24:32,590 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 1019 transitions. Word has length 118 [2022-03-18 16:24:32,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:32,590 INFO L478 AbstractCegarLoop]: Abstraction has 696 states and 1019 transitions. [2022-03-18 16:24:32,590 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:32,590 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 1019 transitions. [2022-03-18 16:24:32,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-18 16:24:32,591 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:32,592 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-03-18 16:24:32,592 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-18 16:24:32,592 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:32,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:32,592 INFO L85 PathProgramCache]: Analyzing trace with hash 707325485, now seen corresponding path program 1 times [2022-03-18 16:24:32,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:32,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827339086] [2022-03-18 16:24:32,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:32,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:32,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:32,762 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-18 16:24:32,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:32,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827339086] [2022-03-18 16:24:32,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827339086] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:32,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:32,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:32,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400990730] [2022-03-18 16:24:32,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:32,763 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:32,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:32,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:32,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:32,764 INFO L87 Difference]: Start difference. First operand 696 states and 1019 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:34,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:35,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:35,137 INFO L93 Difference]: Finished difference Result 1754 states and 2570 transitions. [2022-03-18 16:24:35,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:35,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 137 [2022-03-18 16:24:35,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:35,140 INFO L225 Difference]: With dead ends: 1754 [2022-03-18 16:24:35,140 INFO L226 Difference]: Without dead ends: 1074 [2022-03-18 16:24:35,141 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:35,142 INFO L912 BasicCegarLoop]: 99 mSDtfsCounter, 109 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:35,142 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:24:35,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2022-03-18 16:24:35,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 711. [2022-03-18 16:24:35,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 706 states have (on average 1.4730878186968839) internal successors, (1040), 706 states have internal predecessors, (1040), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 1044 transitions. [2022-03-18 16:24:35,154 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 1044 transitions. Word has length 137 [2022-03-18 16:24:35,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:35,155 INFO L478 AbstractCegarLoop]: Abstraction has 711 states and 1044 transitions. [2022-03-18 16:24:35,155 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:35,155 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 1044 transitions. [2022-03-18 16:24:35,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-03-18 16:24:35,156 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:35,156 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 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] [2022-03-18 16:24:35,156 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-18 16:24:35,156 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:35,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:35,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1627312080, now seen corresponding path program 1 times [2022-03-18 16:24:35,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:35,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387191504] [2022-03-18 16:24:35,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:35,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:35,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:35,302 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-18 16:24:35,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:35,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387191504] [2022-03-18 16:24:35,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387191504] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:35,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:35,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:35,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806469209] [2022-03-18 16:24:35,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:35,303 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:35,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:35,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:35,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:35,304 INFO L87 Difference]: Start difference. First operand 711 states and 1044 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:37,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:37,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:37,818 INFO L93 Difference]: Finished difference Result 1753 states and 2578 transitions. [2022-03-18 16:24:37,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:37,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 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 138 [2022-03-18 16:24:37,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:37,824 INFO L225 Difference]: With dead ends: 1753 [2022-03-18 16:24:37,824 INFO L226 Difference]: Without dead ends: 1058 [2022-03-18 16:24:37,825 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:37,825 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 93 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:37,826 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 565 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 531 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 16:24:37,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-03-18 16:24:37,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 787. [2022-03-18 16:24:37,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 782 states have (on average 1.4782608695652173) internal successors, (1156), 782 states have internal predecessors, (1156), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:37,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1160 transitions. [2022-03-18 16:24:37,838 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1160 transitions. Word has length 138 [2022-03-18 16:24:37,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:37,839 INFO L478 AbstractCegarLoop]: Abstraction has 787 states and 1160 transitions. [2022-03-18 16:24:37,839 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:37,839 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1160 transitions. [2022-03-18 16:24:37,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-18 16:24:37,840 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:37,840 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:37,840 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-18 16:24:37,840 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:37,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:37,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1099530376, now seen corresponding path program 2 times [2022-03-18 16:24:37,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:37,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132526784] [2022-03-18 16:24:37,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:37,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:37,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:37,981 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-18 16:24:37,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:37,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132526784] [2022-03-18 16:24:37,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132526784] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:37,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:37,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:37,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166613535] [2022-03-18 16:24:37,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:37,981 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:37,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:37,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:37,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:37,982 INFO L87 Difference]: Start difference. First operand 787 states and 1160 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:39,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:40,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:40,385 INFO L93 Difference]: Finished difference Result 1916 states and 2817 transitions. [2022-03-18 16:24:40,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:40,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-03-18 16:24:40,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:40,388 INFO L225 Difference]: With dead ends: 1916 [2022-03-18 16:24:40,388 INFO L226 Difference]: Without dead ends: 1145 [2022-03-18 16:24:40,389 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:40,390 INFO L912 BasicCegarLoop]: 104 mSDtfsCounter, 110 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:40,390 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 296 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:24:40,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2022-03-18 16:24:40,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 787. [2022-03-18 16:24:40,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 782 states have (on average 1.4667519181585678) internal successors, (1147), 782 states have internal predecessors, (1147), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:40,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1151 transitions. [2022-03-18 16:24:40,406 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1151 transitions. Word has length 152 [2022-03-18 16:24:40,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:40,406 INFO L478 AbstractCegarLoop]: Abstraction has 787 states and 1151 transitions. [2022-03-18 16:24:40,406 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:40,406 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1151 transitions. [2022-03-18 16:24:40,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-18 16:24:40,407 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:40,407 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:40,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-18 16:24:40,408 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:40,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:40,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1029384155, now seen corresponding path program 1 times [2022-03-18 16:24:40,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:40,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695059793] [2022-03-18 16:24:40,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:40,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:40,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:40,574 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-03-18 16:24:40,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:40,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695059793] [2022-03-18 16:24:40,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695059793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:40,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:40,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:40,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505876432] [2022-03-18 16:24:40,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:40,576 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:40,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:40,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:40,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:40,577 INFO L87 Difference]: Start difference. First operand 787 states and 1151 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:42,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:43,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:43,042 INFO L93 Difference]: Finished difference Result 1871 states and 2734 transitions. [2022-03-18 16:24:43,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:43,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-03-18 16:24:43,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:43,046 INFO L225 Difference]: With dead ends: 1871 [2022-03-18 16:24:43,046 INFO L226 Difference]: Without dead ends: 1236 [2022-03-18 16:24:43,047 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:43,048 INFO L912 BasicCegarLoop]: 214 mSDtfsCounter, 113 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:43,048 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 510 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:24:43,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2022-03-18 16:24:43,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 867. [2022-03-18 16:24:43,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 862 states have (on average 1.4535962877030162) internal successors, (1253), 862 states have internal predecessors, (1253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:43,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1257 transitions. [2022-03-18 16:24:43,064 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1257 transitions. Word has length 152 [2022-03-18 16:24:43,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:43,064 INFO L478 AbstractCegarLoop]: Abstraction has 867 states and 1257 transitions. [2022-03-18 16:24:43,064 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:43,064 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1257 transitions. [2022-03-18 16:24:43,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-18 16:24:43,066 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:43,066 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:43,066 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-18 16:24:43,066 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:43,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:43,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1636398631, now seen corresponding path program 1 times [2022-03-18 16:24:43,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:43,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025469530] [2022-03-18 16:24:43,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:43,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:43,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:43,226 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-18 16:24:43,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:43,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025469530] [2022-03-18 16:24:43,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025469530] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:43,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:43,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:43,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951487927] [2022-03-18 16:24:43,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:43,227 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:43,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:43,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:43,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:43,228 INFO L87 Difference]: Start difference. First operand 867 states and 1257 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:45,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:45,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:45,609 INFO L93 Difference]: Finished difference Result 2077 states and 3012 transitions. [2022-03-18 16:24:45,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:45,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-18 16:24:45,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:45,613 INFO L225 Difference]: With dead ends: 2077 [2022-03-18 16:24:45,613 INFO L226 Difference]: Without dead ends: 1226 [2022-03-18 16:24:45,614 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:45,615 INFO L912 BasicCegarLoop]: 108 mSDtfsCounter, 116 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:45,615 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 300 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:24:45,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2022-03-18 16:24:45,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 867. [2022-03-18 16:24:45,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 862 states have (on average 1.437354988399072) internal successors, (1239), 862 states have internal predecessors, (1239), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:45,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1243 transitions. [2022-03-18 16:24:45,632 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1243 transitions. Word has length 153 [2022-03-18 16:24:45,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:45,632 INFO L478 AbstractCegarLoop]: Abstraction has 867 states and 1243 transitions. [2022-03-18 16:24:45,632 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:45,632 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1243 transitions. [2022-03-18 16:24:45,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-18 16:24:45,633 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:45,633 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:45,633 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-18 16:24:45,634 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:45,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:45,634 INFO L85 PathProgramCache]: Analyzing trace with hash -374709224, now seen corresponding path program 1 times [2022-03-18 16:24:45,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:45,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635757925] [2022-03-18 16:24:45,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:45,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:45,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:45,791 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-03-18 16:24:45,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:45,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635757925] [2022-03-18 16:24:45,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635757925] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:45,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:45,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:45,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936756277] [2022-03-18 16:24:45,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:45,792 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:45,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:45,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:45,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:45,792 INFO L87 Difference]: Start difference. First operand 867 states and 1243 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:47,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:48,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:48,270 INFO L93 Difference]: Finished difference Result 1821 states and 2619 transitions. [2022-03-18 16:24:48,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:48,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-18 16:24:48,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:48,273 INFO L225 Difference]: With dead ends: 1821 [2022-03-18 16:24:48,273 INFO L226 Difference]: Without dead ends: 1122 [2022-03-18 16:24:48,274 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:48,274 INFO L912 BasicCegarLoop]: 232 mSDtfsCounter, 89 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:48,275 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 553 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 514 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:24:48,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-03-18 16:24:48,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 867. [2022-03-18 16:24:48,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 862 states have (on average 1.4327146171693736) internal successors, (1235), 862 states have internal predecessors, (1235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:48,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1239 transitions. [2022-03-18 16:24:48,290 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1239 transitions. Word has length 153 [2022-03-18 16:24:48,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:48,290 INFO L478 AbstractCegarLoop]: Abstraction has 867 states and 1239 transitions. [2022-03-18 16:24:48,291 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:48,291 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1239 transitions. [2022-03-18 16:24:48,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-18 16:24:48,292 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:48,292 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:48,292 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-18 16:24:48,292 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:48,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:48,293 INFO L85 PathProgramCache]: Analyzing trace with hash -719726875, now seen corresponding path program 1 times [2022-03-18 16:24:48,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:48,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266880184] [2022-03-18 16:24:48,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:48,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:48,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:48,426 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-18 16:24:48,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:48,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266880184] [2022-03-18 16:24:48,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266880184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:48,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:48,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:48,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097049378] [2022-03-18 16:24:48,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:48,427 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:48,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:48,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:48,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:48,427 INFO L87 Difference]: Start difference. First operand 867 states and 1239 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:50,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:50,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:50,826 INFO L93 Difference]: Finished difference Result 2077 states and 2976 transitions. [2022-03-18 16:24:50,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:50,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-18 16:24:50,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:50,829 INFO L225 Difference]: With dead ends: 2077 [2022-03-18 16:24:50,829 INFO L226 Difference]: Without dead ends: 1226 [2022-03-18 16:24:50,830 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:50,831 INFO L912 BasicCegarLoop]: 97 mSDtfsCounter, 114 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:50,831 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:24:50,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2022-03-18 16:24:50,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 867. [2022-03-18 16:24:50,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 862 states have (on average 1.4164733178654292) internal successors, (1221), 862 states have internal predecessors, (1221), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:50,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1225 transitions. [2022-03-18 16:24:50,848 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1225 transitions. Word has length 154 [2022-03-18 16:24:50,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:50,848 INFO L478 AbstractCegarLoop]: Abstraction has 867 states and 1225 transitions. [2022-03-18 16:24:50,848 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:50,848 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1225 transitions. [2022-03-18 16:24:50,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-18 16:24:50,849 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:50,849 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:50,850 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-18 16:24:50,850 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:50,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:50,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1227152319, now seen corresponding path program 1 times [2022-03-18 16:24:50,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:50,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802150251] [2022-03-18 16:24:50,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:50,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:50,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:50,985 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-18 16:24:50,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:50,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802150251] [2022-03-18 16:24:50,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802150251] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:50,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:50,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:50,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178298184] [2022-03-18 16:24:50,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:50,986 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:50,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:50,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:50,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:50,987 INFO L87 Difference]: Start difference. First operand 867 states and 1225 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:52,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:53,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:53,400 INFO L93 Difference]: Finished difference Result 1937 states and 2759 transitions. [2022-03-18 16:24:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:53,400 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 156 [2022-03-18 16:24:53,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:53,403 INFO L225 Difference]: With dead ends: 1937 [2022-03-18 16:24:53,403 INFO L226 Difference]: Without dead ends: 1086 [2022-03-18 16:24:53,404 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:53,405 INFO L912 BasicCegarLoop]: 224 mSDtfsCounter, 77 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:53,405 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 537 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:24:53,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2022-03-18 16:24:53,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 871. [2022-03-18 16:24:53,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 866 states have (on average 1.4145496535796767) internal successors, (1225), 866 states have internal predecessors, (1225), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:53,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1229 transitions. [2022-03-18 16:24:53,420 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1229 transitions. Word has length 156 [2022-03-18 16:24:53,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:53,420 INFO L478 AbstractCegarLoop]: Abstraction has 871 states and 1229 transitions. [2022-03-18 16:24:53,420 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:53,420 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1229 transitions. [2022-03-18 16:24:53,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-18 16:24:53,432 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:53,432 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 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] [2022-03-18 16:24:53,432 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-18 16:24:53,432 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:53,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:53,432 INFO L85 PathProgramCache]: Analyzing trace with hash -35280706, now seen corresponding path program 1 times [2022-03-18 16:24:53,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:53,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825076089] [2022-03-18 16:24:53,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:53,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:53,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:53,579 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-18 16:24:53,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:53,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825076089] [2022-03-18 16:24:53,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825076089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:24:53,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:24:53,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:24:53,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354616266] [2022-03-18 16:24:53,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:24:53,580 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:24:53,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:24:53,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:24:53,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:24:53,580 INFO L87 Difference]: Start difference. First operand 871 states and 1229 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:55,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:24:55,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:24:55,944 INFO L93 Difference]: Finished difference Result 2085 states and 2956 transitions. [2022-03-18 16:24:55,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:24:55,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-18 16:24:55,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:24:55,947 INFO L225 Difference]: With dead ends: 2085 [2022-03-18 16:24:55,947 INFO L226 Difference]: Without dead ends: 1230 [2022-03-18 16:24:55,948 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:24:55,949 INFO L912 BasicCegarLoop]: 97 mSDtfsCounter, 106 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:24:55,949 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:24:55,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2022-03-18 16:24:55,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 886. [2022-03-18 16:24:55,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 881 states have (on average 1.4188422247446084) internal successors, (1250), 881 states have internal predecessors, (1250), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:55,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1254 transitions. [2022-03-18 16:24:55,966 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1254 transitions. Word has length 157 [2022-03-18 16:24:55,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:24:55,966 INFO L478 AbstractCegarLoop]: Abstraction has 886 states and 1254 transitions. [2022-03-18 16:24:55,966 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:24:55,966 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1254 transitions. [2022-03-18 16:24:55,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-18 16:24:55,968 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:24:55,968 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:24:55,968 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-18 16:24:55,968 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:24:55,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:24:55,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1137385555, now seen corresponding path program 1 times [2022-03-18 16:24:55,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:24:55,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324067767] [2022-03-18 16:24:55,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:55,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:24:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:56,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:24:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:56,177 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 94 proven. 5 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-03-18 16:24:56,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:24:56,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324067767] [2022-03-18 16:24:56,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324067767] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:24:56,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701267668] [2022-03-18 16:24:56,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:24:56,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:24:56,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:24:56,179 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:24:56,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-18 16:24:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:24:56,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 1465 conjuncts, 15 conjunts are in the unsatisfiable core [2022-03-18 16:24:56,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:24:57,033 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-18 16:24:57,034 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 [2022-03-18 16:24:57,039 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 [2022-03-18 16:24:57,044 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 [2022-03-18 16:24:57,052 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