/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 12:26:36,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 12:26:36,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 12:26:36,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 12:26:36,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 12:26:36,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 12:26:36,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 12:26:36,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 12:26:36,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 12:26:36,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 12:26:36,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 12:26:36,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 12:26:36,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 12:26:36,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 12:26:36,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 12:26:36,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 12:26:36,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 12:26:36,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 12:26:36,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 12:26:36,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 12:26:36,184 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 12:26:36,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 12:26:36,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 12:26:36,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 12:26:36,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 12:26:36,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 12:26:36,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 12:26:36,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 12:26:36,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 12:26:36,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 12:26:36,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-20 12:26:36,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 12:26:36,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 12:26:36,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 12:26:36,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-20 12:26:36,225 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 12:26:36,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 12:26:36,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 12:26:36,226 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 12:26:36,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 12:26:36,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 12:26:36,227 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 12:26:36,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 12:26:36,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 12:26:36,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 12:26:36,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 12:26:36,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 12:26:36,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 12:26:36,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 12:26:36,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 12:26:36,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 12:26:36,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 12:26:36,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 12:26:36,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 12:26:36,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:26:36,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 12:26:36,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 12:26:36,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 12:26:36,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 12:26:36,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 12:26:36,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 12:26:36,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-20 12:26:36,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-20 12:26:36,231 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 12:26:36,231 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 12:26:36,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 12:26:36,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 12:26:36,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 12:26:36,432 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 12:26:36,433 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 12:26:36,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-1.c [2022-03-20 12:26:36,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a840446ac/daf7007e9e494bedaa18a2c9c5d35ef9/FLAGbd6091633 [2022-03-20 12:26:36,925 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 12:26:36,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-1.c [2022-03-20 12:26:36,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a840446ac/daf7007e9e494bedaa18a2c9c5d35ef9/FLAGbd6091633 [2022-03-20 12:26:37,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a840446ac/daf7007e9e494bedaa18a2c9c5d35ef9 [2022-03-20 12:26:37,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 12:26:37,284 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 12:26:37,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 12:26:37,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 12:26:37,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 12:26:37,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:26:37" (1/1) ... [2022-03-20 12:26:37,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd18717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:26:37, skipping insertion in model container [2022-03-20 12:26:37,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:26:37" (1/1) ... [2022-03-20 12:26:37,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 12:26:37,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 12:26:37,613 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-1.c[74354,74367] [2022-03-20 12:26:37,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:26:37,633 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 12:26:37,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-1.c[74354,74367] [2022-03-20 12:26:37,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:26:37,735 INFO L208 MainTranslator]: Completed translation [2022-03-20 12:26:37,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:26:37 WrapperNode [2022-03-20 12:26:37,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 12:26:37,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 12:26:37,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 12:26:37,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 12:26:37,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:26:37" (1/1) ... [2022-03-20 12:26:37,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:26:37" (1/1) ... [2022-03-20 12:26:37,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:26:37" (1/1) ... [2022-03-20 12:26:37,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:26:37" (1/1) ... [2022-03-20 12:26:37,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:26:37" (1/1) ... [2022-03-20 12:26:37,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:26:37" (1/1) ... [2022-03-20 12:26:37,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:26:37" (1/1) ... [2022-03-20 12:26:37,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 12:26:37,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 12:26:37,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 12:26:37,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 12:26:37,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:26:37" (1/1) ... [2022-03-20 12:26:37,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:26:37,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:26:37,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 12:26:37,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 12:26:37,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 12:26:37,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 12:26:37,883 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 12:26:37,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 12:26:37,884 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 12:26:37,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 12:26:37,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 12:26:37,884 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 12:26:37,886 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 12:26:37,886 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 12:26:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 12:26:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 12:26:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 12:26:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 12:26:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 12:26:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 12:26:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 12:26:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 12:26:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 12:26:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 12:26:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 12:26:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 12:26:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 12:26:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 12:26:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 12:26:38,038 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 12:26:38,040 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 12:26:39,118 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 12:26:39,436 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 12:26:39,436 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 12:26:39,452 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 12:26:39,460 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 12:26:39,461 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 12:26:39,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:26:39 BoogieIcfgContainer [2022-03-20 12:26:39,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 12:26:39,475 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 12:26:39,475 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 12:26:39,476 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 12:26:39,478 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:26:39" (1/1) ... [2022-03-20 12:26:39,480 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-03-20 12:26:39,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:26:39 BasicIcfg [2022-03-20 12:26:39,522 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 12:26:39,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 12:26:39,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 12:26:39,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 12:26:39,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 12:26:37" (1/4) ... [2022-03-20 12:26:39,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5469516e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:26:39, skipping insertion in model container [2022-03-20 12:26:39,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:26:37" (2/4) ... [2022-03-20 12:26:39,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5469516e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:26:39, skipping insertion in model container [2022-03-20 12:26:39,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:26:39" (3/4) ... [2022-03-20 12:26:39,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5469516e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 12:26:39, skipping insertion in model container [2022-03-20 12:26:39,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:26:39" (4/4) ... [2022-03-20 12:26:39,543 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.13.i.cil-1.cqvasr [2022-03-20 12:26:39,547 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 12:26:39,548 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 12:26:39,586 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 12:26:39,591 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 12:26:39,591 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 12:26:39,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 12:26:39,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-20 12:26:39,609 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:39,610 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:39,610 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:39,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:39,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1749012704, now seen corresponding path program 1 times [2022-03-20 12:26:39,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:39,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932393697] [2022-03-20 12:26:39,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:39,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:40,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:40,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:26:40,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:40,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932393697] [2022-03-20 12:26:40,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932393697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:40,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:40,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:40,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333757707] [2022-03-20 12:26:40,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:40,095 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:40,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:40,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:40,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:40,124 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:43,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:43,072 INFO L93 Difference]: Finished difference Result 430 states and 727 transitions. [2022-03-20 12:26:43,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:43,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-20 12:26:43,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:43,081 INFO L225 Difference]: With dead ends: 430 [2022-03-20 12:26:43,081 INFO L226 Difference]: Without dead ends: 261 [2022-03-20 12:26:43,084 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:43,086 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 167 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:43,086 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 461 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 12:26:43,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-20 12:26:43,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 170. [2022-03-20 12:26:43,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5818181818181818) internal successors, (261), 165 states have internal predecessors, (261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:43,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 265 transitions. [2022-03-20 12:26:43,118 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 265 transitions. Word has length 42 [2022-03-20 12:26:43,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:43,118 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 265 transitions. [2022-03-20 12:26:43,119 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:43,119 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 265 transitions. [2022-03-20 12:26:43,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-20 12:26:43,120 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:43,120 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:43,120 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 12:26:43,120 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:43,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:43,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1744879992, now seen corresponding path program 1 times [2022-03-20 12:26:43,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:43,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473350814] [2022-03-20 12:26:43,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:43,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:43,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:43,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:26:43,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:43,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473350814] [2022-03-20 12:26:43,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473350814] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:43,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:43,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:43,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93388521] [2022-03-20 12:26:43,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:43,261 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:43,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:43,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:43,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:43,262 INFO L87 Difference]: Start difference. First operand 170 states and 265 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:46,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:46,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:46,488 INFO L93 Difference]: Finished difference Result 444 states and 697 transitions. [2022-03-20 12:26:46,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:46,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-03-20 12:26:46,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:46,490 INFO L225 Difference]: With dead ends: 444 [2022-03-20 12:26:46,490 INFO L226 Difference]: Without dead ends: 289 [2022-03-20 12:26:46,491 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:46,491 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 134 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:46,492 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 12:26:46,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-03-20 12:26:46,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 199. [2022-03-20 12:26:46,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:46,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-03-20 12:26:46,501 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 43 [2022-03-20 12:26:46,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:46,501 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-03-20 12:26:46,502 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:46,502 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-03-20 12:26:46,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-20 12:26:46,503 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:46,503 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:46,503 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 12:26:46,503 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:46,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:46,504 INFO L85 PathProgramCache]: Analyzing trace with hash -749150668, now seen corresponding path program 1 times [2022-03-20 12:26:46,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:46,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877160702] [2022-03-20 12:26:46,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:46,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:46,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:26:46,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:46,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877160702] [2022-03-20 12:26:46,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877160702] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:46,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:46,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:46,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763405799] [2022-03-20 12:26:46,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:46,618 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:46,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:46,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:46,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:46,619 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:50,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:50,070 INFO L93 Difference]: Finished difference Result 503 states and 800 transitions. [2022-03-20 12:26:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:50,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 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 48 [2022-03-20 12:26:50,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:50,072 INFO L225 Difference]: With dead ends: 503 [2022-03-20 12:26:50,072 INFO L226 Difference]: Without dead ends: 319 [2022-03-20 12:26:50,114 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:50,115 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 123 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:50,115 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 344 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 12:26:50,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-03-20 12:26:50,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 239. [2022-03-20 12:26:50,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.641025641025641) internal successors, (384), 234 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) [2022-03-20 12:26:50,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 388 transitions. [2022-03-20 12:26:50,133 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 388 transitions. Word has length 48 [2022-03-20 12:26:50,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:50,134 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 388 transitions. [2022-03-20 12:26:50,134 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:50,134 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 388 transitions. [2022-03-20 12:26:50,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-20 12:26:50,135 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:50,135 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:50,135 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 12:26:50,135 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:50,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:50,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1747882016, now seen corresponding path program 1 times [2022-03-20 12:26:50,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:50,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167353413] [2022-03-20 12:26:50,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:50,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:50,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:50,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:26:50,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:50,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167353413] [2022-03-20 12:26:50,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167353413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:50,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:50,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:50,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394748579] [2022-03-20 12:26:50,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:50,291 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:50,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:50,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:50,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:50,292 INFO L87 Difference]: Start difference. First operand 239 states and 388 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:52,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:54,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:56,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:57,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:57,422 INFO L93 Difference]: Finished difference Result 553 states and 890 transitions. [2022-03-20 12:26:57,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:57,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 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 49 [2022-03-20 12:26:57,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:57,424 INFO L225 Difference]: With dead ends: 553 [2022-03-20 12:26:57,424 INFO L226 Difference]: Without dead ends: 329 [2022-03-20 12:26:57,425 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:57,425 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 122 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:57,425 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 356 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-20 12:26:57,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-03-20 12:26:57,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 250. [2022-03-20 12:26:57,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.653061224489796) internal successors, (405), 245 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:57,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 409 transitions. [2022-03-20 12:26:57,434 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 409 transitions. Word has length 49 [2022-03-20 12:26:57,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:57,434 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 409 transitions. [2022-03-20 12:26:57,434 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:57,434 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 409 transitions. [2022-03-20 12:26:57,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-20 12:26:57,435 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:57,436 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:57,436 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 12:26:57,436 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:57,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:57,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1803301705, now seen corresponding path program 1 times [2022-03-20 12:26:57,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:57,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610508408] [2022-03-20 12:26:57,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:57,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:57,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:57,549 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-20 12:26:57,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:57,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610508408] [2022-03-20 12:26:57,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610508408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:57,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:57,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:57,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034092430] [2022-03-20 12:26:57,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:57,550 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:57,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:57,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:57,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:57,550 INFO L87 Difference]: Start difference. First operand 250 states and 409 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:59,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:00,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:02,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:03,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:03,530 INFO L93 Difference]: Finished difference Result 513 states and 840 transitions. [2022-03-20 12:27:03,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:03,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 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 70 [2022-03-20 12:27:03,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:03,532 INFO L225 Difference]: With dead ends: 513 [2022-03-20 12:27:03,532 INFO L226 Difference]: Without dead ends: 278 [2022-03-20 12:27:03,533 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:03,533 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:03,533 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 481 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 12:27:03,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-20 12:27:03,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-20 12:27:03,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65625) internal successors, (424), 256 states have internal predecessors, (424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:03,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 428 transitions. [2022-03-20 12:27:03,544 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 428 transitions. Word has length 70 [2022-03-20 12:27:03,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:03,544 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 428 transitions. [2022-03-20 12:27:03,544 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:03,544 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 428 transitions. [2022-03-20 12:27:03,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 12:27:03,545 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:03,545 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:03,546 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 12:27:03,546 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:03,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:03,546 INFO L85 PathProgramCache]: Analyzing trace with hash 63867932, now seen corresponding path program 1 times [2022-03-20 12:27:03,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:03,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135135639] [2022-03-20 12:27:03,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:03,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:03,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:03,715 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 12:27:03,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:03,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135135639] [2022-03-20 12:27:03,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135135639] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:03,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:03,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:03,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17599807] [2022-03-20 12:27:03,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:03,716 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:03,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:03,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:03,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:03,717 INFO L87 Difference]: Start difference. First operand 261 states and 428 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:06,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:08,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:08,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:08,451 INFO L93 Difference]: Finished difference Result 513 states and 839 transitions. [2022-03-20 12:27:08,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:08,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 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 83 [2022-03-20 12:27:08,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:08,452 INFO L225 Difference]: With dead ends: 513 [2022-03-20 12:27:08,452 INFO L226 Difference]: Without dead ends: 278 [2022-03-20 12:27:08,453 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:08,455 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 24 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:08,455 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 483 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 363 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 12:27:08,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-20 12:27:08,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-20 12:27:08,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65234375) internal successors, (423), 256 states have internal predecessors, (423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:08,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 427 transitions. [2022-03-20 12:27:08,463 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 427 transitions. Word has length 83 [2022-03-20 12:27:08,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:08,464 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 427 transitions. [2022-03-20 12:27:08,464 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:08,464 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 427 transitions. [2022-03-20 12:27:08,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 12:27:08,465 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:08,465 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:08,465 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 12:27:08,466 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:08,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:08,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1024321373, now seen corresponding path program 1 times [2022-03-20 12:27:08,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:08,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350148032] [2022-03-20 12:27:08,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:08,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:08,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:08,558 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 12:27:08,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:08,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350148032] [2022-03-20 12:27:08,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350148032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:08,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:08,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:08,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837317602] [2022-03-20 12:27:08,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:08,558 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:08,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:08,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:08,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:08,559 INFO L87 Difference]: Start difference. First operand 261 states and 427 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:10,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:12,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:14,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:16,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:16,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:16,695 INFO L93 Difference]: Finished difference Result 574 states and 927 transitions. [2022-03-20 12:27:16,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:16,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 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 84 [2022-03-20 12:27:16,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:16,696 INFO L225 Difference]: With dead ends: 574 [2022-03-20 12:27:16,696 INFO L226 Difference]: Without dead ends: 339 [2022-03-20 12:27:16,697 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:16,697 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 150 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:16,698 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 479 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-20 12:27:16,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-03-20 12:27:16,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 261. [2022-03-20 12:27:16,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.63671875) internal successors, (419), 256 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:16,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 423 transitions. [2022-03-20 12:27:16,703 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 423 transitions. Word has length 84 [2022-03-20 12:27:16,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:16,703 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 423 transitions. [2022-03-20 12:27:16,703 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:16,703 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 423 transitions. [2022-03-20 12:27:16,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 12:27:16,704 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:16,704 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:16,704 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 12:27:16,704 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:16,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:16,705 INFO L85 PathProgramCache]: Analyzing trace with hash 992055491, now seen corresponding path program 1 times [2022-03-20 12:27:16,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:16,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108779540] [2022-03-20 12:27:16,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:16,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:16,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:16,859 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 12:27:16,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:16,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108779540] [2022-03-20 12:27:16,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108779540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:16,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:16,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:16,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199340088] [2022-03-20 12:27:16,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:16,860 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:16,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:16,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:16,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:16,863 INFO L87 Difference]: Start difference. First operand 261 states and 423 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:18,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:20,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:22,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:22,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:22,698 INFO L93 Difference]: Finished difference Result 512 states and 830 transitions. [2022-03-20 12:27:22,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:22,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 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 84 [2022-03-20 12:27:22,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:22,700 INFO L225 Difference]: With dead ends: 512 [2022-03-20 12:27:22,700 INFO L226 Difference]: Without dead ends: 277 [2022-03-20 12:27:22,700 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:22,701 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:22,701 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 12:27:22,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-03-20 12:27:22,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 261. [2022-03-20 12:27:22,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6328125) internal successors, (418), 256 states have internal predecessors, (418), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:22,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 422 transitions. [2022-03-20 12:27:22,706 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 422 transitions. Word has length 84 [2022-03-20 12:27:22,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:22,706 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 422 transitions. [2022-03-20 12:27:22,707 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:22,707 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 422 transitions. [2022-03-20 12:27:22,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 12:27:22,707 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:22,707 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:22,707 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 12:27:22,707 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:22,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:22,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1577446659, now seen corresponding path program 1 times [2022-03-20 12:27:22,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:22,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520804862] [2022-03-20 12:27:22,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:22,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:22,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:22,801 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 12:27:22,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:22,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520804862] [2022-03-20 12:27:22,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520804862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:22,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:22,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:22,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32716063] [2022-03-20 12:27:22,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:22,802 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:22,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:22,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:22,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:22,803 INFO L87 Difference]: Start difference. First operand 261 states and 422 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:26,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:27,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:27,142 INFO L93 Difference]: Finished difference Result 574 states and 919 transitions. [2022-03-20 12:27:27,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:27,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 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 84 [2022-03-20 12:27:27,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:27,143 INFO L225 Difference]: With dead ends: 574 [2022-03-20 12:27:27,143 INFO L226 Difference]: Without dead ends: 339 [2022-03-20 12:27:27,144 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:27,144 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 143 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:27,145 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 12:27:27,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-03-20 12:27:27,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 261. [2022-03-20 12:27:27,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6171875) internal successors, (414), 256 states have internal predecessors, (414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:27,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 418 transitions. [2022-03-20 12:27:27,150 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 418 transitions. Word has length 84 [2022-03-20 12:27:27,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:27,150 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 418 transitions. [2022-03-20 12:27:27,150 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:27,150 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 418 transitions. [2022-03-20 12:27:27,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 12:27:27,151 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:27,151 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:27,151 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 12:27:27,151 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:27,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:27,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1333437405, now seen corresponding path program 1 times [2022-03-20 12:27:27,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:27,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855056769] [2022-03-20 12:27:27,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:27,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:27,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:27,236 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 12:27:27,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:27,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855056769] [2022-03-20 12:27:27,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855056769] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:27,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:27,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:27,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294476061] [2022-03-20 12:27:27,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:27,238 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:27,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:27,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:27,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:27,239 INFO L87 Difference]: Start difference. First operand 261 states and 418 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:30,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:31,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:31,259 INFO L93 Difference]: Finished difference Result 573 states and 911 transitions. [2022-03-20 12:27:31,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:31,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 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 84 [2022-03-20 12:27:31,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:31,261 INFO L225 Difference]: With dead ends: 573 [2022-03-20 12:27:31,261 INFO L226 Difference]: Without dead ends: 338 [2022-03-20 12:27:31,262 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:31,262 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 141 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:31,262 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 12:27:31,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-20 12:27:31,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-03-20 12:27:31,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:31,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-03-20 12:27:31,267 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 84 [2022-03-20 12:27:31,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:31,267 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-03-20 12:27:31,267 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:31,267 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-03-20 12:27:31,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 12:27:31,268 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:31,268 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:31,268 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 12:27:31,268 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:31,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:31,269 INFO L85 PathProgramCache]: Analyzing trace with hash -628613252, now seen corresponding path program 1 times [2022-03-20 12:27:31,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:31,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790086652] [2022-03-20 12:27:31,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:31,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:31,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:31,363 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 12:27:31,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:31,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790086652] [2022-03-20 12:27:31,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790086652] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:31,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:31,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:31,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074800363] [2022-03-20 12:27:31,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:31,363 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:31,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:31,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:31,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:31,364 INFO L87 Difference]: Start difference. First operand 261 states and 414 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 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) [2022-03-20 12:27:34,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:36,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:37,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:37,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:37,964 INFO L93 Difference]: Finished difference Result 573 states and 904 transitions. [2022-03-20 12:27:37,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:37,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 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 85 [2022-03-20 12:27:37,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:37,966 INFO L225 Difference]: With dead ends: 573 [2022-03-20 12:27:37,966 INFO L226 Difference]: Without dead ends: 338 [2022-03-20 12:27:37,966 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:37,966 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 145 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:37,967 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 478 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-03-20 12:27:37,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-20 12:27:37,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-03-20 12:27:37,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5859375) internal successors, (406), 256 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:37,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 410 transitions. [2022-03-20 12:27:37,972 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 410 transitions. Word has length 85 [2022-03-20 12:27:37,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:37,972 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 410 transitions. [2022-03-20 12:27:37,972 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 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) [2022-03-20 12:27:37,972 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 410 transitions. [2022-03-20 12:27:37,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-20 12:27:37,973 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:37,973 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:37,973 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 12:27:37,973 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:37,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:37,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1762044185, now seen corresponding path program 1 times [2022-03-20 12:27:37,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:37,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817518109] [2022-03-20 12:27:37,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:37,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:38,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:38,068 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 12:27:38,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:38,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817518109] [2022-03-20 12:27:38,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817518109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:38,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:38,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:38,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150995256] [2022-03-20 12:27:38,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:38,068 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:38,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:38,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:38,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:38,069 INFO L87 Difference]: Start difference. First operand 261 states and 410 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:40,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:42,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:42,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:42,926 INFO L93 Difference]: Finished difference Result 573 states and 897 transitions. [2022-03-20 12:27:42,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:42,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-03-20 12:27:42,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:42,928 INFO L225 Difference]: With dead ends: 573 [2022-03-20 12:27:42,928 INFO L226 Difference]: Without dead ends: 338 [2022-03-20 12:27:42,929 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:42,929 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 143 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:42,929 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-20 12:27:42,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-20 12:27:42,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-03-20 12:27:42,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5703125) internal successors, (402), 256 states have internal predecessors, (402), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:42,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 406 transitions. [2022-03-20 12:27:42,934 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 406 transitions. Word has length 86 [2022-03-20 12:27:42,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:42,935 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 406 transitions. [2022-03-20 12:27:42,935 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:42,935 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 406 transitions. [2022-03-20 12:27:42,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 12:27:42,935 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:42,936 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:42,936 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 12:27:42,936 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:42,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:42,936 INFO L85 PathProgramCache]: Analyzing trace with hash -67928033, now seen corresponding path program 1 times [2022-03-20 12:27:42,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:42,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935591043] [2022-03-20 12:27:42,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:42,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:43,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:43,063 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 12:27:43,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:43,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935591043] [2022-03-20 12:27:43,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935591043] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:43,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:43,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:43,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037640584] [2022-03-20 12:27:43,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:43,064 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:43,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:43,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:43,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:43,065 INFO L87 Difference]: Start difference. First operand 261 states and 406 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:45,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:47,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:48,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:48,200 INFO L93 Difference]: Finished difference Result 499 states and 785 transitions. [2022-03-20 12:27:48,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:48,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-20 12:27:48,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:48,201 INFO L225 Difference]: With dead ends: 499 [2022-03-20 12:27:48,201 INFO L226 Difference]: Without dead ends: 264 [2022-03-20 12:27:48,202 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:48,202 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:48,202 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 12:27:48,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-03-20 12:27:48,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2022-03-20 12:27:48,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.56640625) internal successors, (401), 256 states have internal predecessors, (401), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:48,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 405 transitions. [2022-03-20 12:27:48,207 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 405 transitions. Word has length 87 [2022-03-20 12:27:48,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:48,207 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 405 transitions. [2022-03-20 12:27:48,207 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:48,207 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 405 transitions. [2022-03-20 12:27:48,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 12:27:48,210 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:48,210 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:48,210 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 12:27:48,210 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:48,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:48,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1151267150, now seen corresponding path program 1 times [2022-03-20 12:27:48,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:48,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550761071] [2022-03-20 12:27:48,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:48,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:48,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:48,312 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-20 12:27:48,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:48,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550761071] [2022-03-20 12:27:48,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550761071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:48,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:48,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:48,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842199281] [2022-03-20 12:27:48,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:48,312 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:48,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:48,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:48,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:48,313 INFO L87 Difference]: Start difference. First operand 261 states and 405 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:49,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:52,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:54,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:54,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:54,739 INFO L93 Difference]: Finished difference Result 537 states and 839 transitions. [2022-03-20 12:27:54,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:54,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-20 12:27:54,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:54,741 INFO L225 Difference]: With dead ends: 537 [2022-03-20 12:27:54,741 INFO L226 Difference]: Without dead ends: 302 [2022-03-20 12:27:54,741 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:54,742 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 29 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:54,742 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 507 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 392 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-20 12:27:54,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-03-20 12:27:54,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 283. [2022-03-20 12:27:54,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5611510791366907) internal successors, (434), 278 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:54,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 438 transitions. [2022-03-20 12:27:54,746 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 438 transitions. Word has length 87 [2022-03-20 12:27:54,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:54,746 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 438 transitions. [2022-03-20 12:27:54,746 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:54,747 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 438 transitions. [2022-03-20 12:27:54,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-20 12:27:54,747 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:54,747 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:54,747 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 12:27:54,747 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:54,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:54,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1763344841, now seen corresponding path program 1 times [2022-03-20 12:27:54,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:54,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129302687] [2022-03-20 12:27:54,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:54,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:54,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:54,848 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 12:27:54,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:54,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129302687] [2022-03-20 12:27:54,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129302687] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:54,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:54,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:54,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524026824] [2022-03-20 12:27:54,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:54,848 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:54,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:54,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:54,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:54,849 INFO L87 Difference]: Start difference. First operand 283 states and 438 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:56,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:58,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:00,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:02,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:02,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:02,963 INFO L93 Difference]: Finished difference Result 557 states and 869 transitions. [2022-03-20 12:28:02,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:02,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 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 100 [2022-03-20 12:28:02,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:02,964 INFO L225 Difference]: With dead ends: 557 [2022-03-20 12:28:02,964 INFO L226 Difference]: Without dead ends: 300 [2022-03-20 12:28:02,965 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:02,965 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 34 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:02,965 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 511 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 386 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-20 12:28:02,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-03-20 12:28:02,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 283. [2022-03-20 12:28:02,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5575539568345325) internal successors, (433), 278 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:02,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 437 transitions. [2022-03-20 12:28:02,970 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 437 transitions. Word has length 100 [2022-03-20 12:28:02,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:02,970 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 437 transitions. [2022-03-20 12:28:02,970 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:02,970 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 437 transitions. [2022-03-20 12:28:02,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-20 12:28:02,971 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:02,971 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:02,971 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 12:28:02,971 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:02,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:02,971 INFO L85 PathProgramCache]: Analyzing trace with hash 183034376, now seen corresponding path program 1 times [2022-03-20 12:28:02,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:02,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519471795] [2022-03-20 12:28:02,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:02,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:03,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:03,056 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-20 12:28:03,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:03,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519471795] [2022-03-20 12:28:03,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519471795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:03,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:03,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:03,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746608354] [2022-03-20 12:28:03,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:03,058 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:03,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:03,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:03,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:03,058 INFO L87 Difference]: Start difference. First operand 283 states and 437 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:05,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:05,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:05,411 INFO L93 Difference]: Finished difference Result 568 states and 883 transitions. [2022-03-20 12:28:05,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:05,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 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 101 [2022-03-20 12:28:05,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:05,413 INFO L225 Difference]: With dead ends: 568 [2022-03-20 12:28:05,413 INFO L226 Difference]: Without dead ends: 311 [2022-03-20 12:28:05,413 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:05,414 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 19 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:05,414 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 568 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 389 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:28:05,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-03-20 12:28:05,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 299. [2022-03-20 12:28:05,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5510204081632653) internal successors, (456), 294 states have internal predecessors, (456), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:05,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 460 transitions. [2022-03-20 12:28:05,419 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 460 transitions. Word has length 101 [2022-03-20 12:28:05,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:05,419 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 460 transitions. [2022-03-20 12:28:05,419 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:05,419 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 460 transitions. [2022-03-20 12:28:05,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-03-20 12:28:05,419 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:05,420 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:05,420 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 12:28:05,420 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:05,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:05,420 INFO L85 PathProgramCache]: Analyzing trace with hash 332221618, now seen corresponding path program 1 times [2022-03-20 12:28:05,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:05,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608619695] [2022-03-20 12:28:05,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:05,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:05,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:05,509 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 12:28:05,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:05,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608619695] [2022-03-20 12:28:05,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608619695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:05,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:05,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:05,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197687559] [2022-03-20 12:28:05,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:05,510 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:05,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:05,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:05,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:05,511 INFO L87 Difference]: Start difference. First operand 299 states and 460 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:07,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:08,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:10,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:11,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:11,243 INFO L93 Difference]: Finished difference Result 649 states and 999 transitions. [2022-03-20 12:28:11,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:11,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 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 102 [2022-03-20 12:28:11,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:11,244 INFO L225 Difference]: With dead ends: 649 [2022-03-20 12:28:11,244 INFO L226 Difference]: Without dead ends: 376 [2022-03-20 12:28:11,245 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:11,245 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 145 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:11,245 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 12:28:11,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-03-20 12:28:11,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 299. [2022-03-20 12:28:11,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.534013605442177) internal successors, (451), 294 states have internal predecessors, (451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:11,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 455 transitions. [2022-03-20 12:28:11,250 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 455 transitions. Word has length 102 [2022-03-20 12:28:11,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:11,250 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 455 transitions. [2022-03-20 12:28:11,251 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:11,251 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 455 transitions. [2022-03-20 12:28:11,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-03-20 12:28:11,251 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:11,251 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:11,251 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 12:28:11,252 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:11,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:11,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1369020480, now seen corresponding path program 1 times [2022-03-20 12:28:11,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:11,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048418404] [2022-03-20 12:28:11,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:11,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:11,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 12:28:11,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:11,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048418404] [2022-03-20 12:28:11,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048418404] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:11,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:11,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:11,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073417955] [2022-03-20 12:28:11,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:11,385 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:11,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:11,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:11,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:11,387 INFO L87 Difference]: Start difference. First operand 299 states and 455 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:13,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:15,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:17,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:17,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:17,883 INFO L93 Difference]: Finished difference Result 639 states and 976 transitions. [2022-03-20 12:28:17,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:17,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 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 105 [2022-03-20 12:28:17,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:17,885 INFO L225 Difference]: With dead ends: 639 [2022-03-20 12:28:17,885 INFO L226 Difference]: Without dead ends: 366 [2022-03-20 12:28:17,885 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:17,886 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 134 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:17,886 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 374 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-03-20 12:28:17,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-03-20 12:28:17,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 299. [2022-03-20 12:28:17,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5170068027210883) internal successors, (446), 294 states have internal predecessors, (446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:17,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 450 transitions. [2022-03-20 12:28:17,891 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 450 transitions. Word has length 105 [2022-03-20 12:28:17,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:17,891 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 450 transitions. [2022-03-20 12:28:17,891 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:17,891 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 450 transitions. [2022-03-20 12:28:17,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-20 12:28:17,892 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:17,892 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:17,892 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 12:28:17,892 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:17,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:17,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1497476783, now seen corresponding path program 1 times [2022-03-20 12:28:17,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:17,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974603025] [2022-03-20 12:28:17,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:17,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:17,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:17,991 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:28:17,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:17,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974603025] [2022-03-20 12:28:17,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974603025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:17,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:17,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:17,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613792146] [2022-03-20 12:28:17,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:17,992 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:17,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:17,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:17,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:17,992 INFO L87 Difference]: Start difference. First operand 299 states and 450 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) [2022-03-20 12:28:20,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:20,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:20,431 INFO L93 Difference]: Finished difference Result 653 states and 989 transitions. [2022-03-20 12:28:20,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:20,432 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 109 [2022-03-20 12:28:20,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:20,433 INFO L225 Difference]: With dead ends: 653 [2022-03-20 12:28:20,433 INFO L226 Difference]: Without dead ends: 380 [2022-03-20 12:28:20,433 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:20,434 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 76 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:20,434 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 503 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:28:20,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-03-20 12:28:20,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 327. [2022-03-20 12:28:20,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 1.5124223602484472) internal successors, (487), 322 states have internal predecessors, (487), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:20,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 491 transitions. [2022-03-20 12:28:20,439 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 491 transitions. Word has length 109 [2022-03-20 12:28:20,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:20,439 INFO L478 AbstractCegarLoop]: Abstraction has 327 states and 491 transitions. [2022-03-20 12:28:20,439 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) [2022-03-20 12:28:20,439 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 491 transitions. [2022-03-20 12:28:20,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-20 12:28:20,440 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:20,440 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:20,440 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 12:28:20,440 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:20,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:20,441 INFO L85 PathProgramCache]: Analyzing trace with hash 330780464, now seen corresponding path program 1 times [2022-03-20 12:28:20,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:20,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299825718] [2022-03-20 12:28:20,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:20,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:20,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:20,581 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:28:20,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:20,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299825718] [2022-03-20 12:28:20,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299825718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:20,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:20,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:20,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570197630] [2022-03-20 12:28:20,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:20,582 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:20,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:20,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:20,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:20,582 INFO L87 Difference]: Start difference. First operand 327 states and 491 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) [2022-03-20 12:28:21,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:23,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:25,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:27,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:28,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:28,361 INFO L93 Difference]: Finished difference Result 735 states and 1112 transitions. [2022-03-20 12:28:28,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:28,362 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 109 [2022-03-20 12:28:28,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:28,363 INFO L225 Difference]: With dead ends: 735 [2022-03-20 12:28:28,363 INFO L226 Difference]: Without dead ends: 434 [2022-03-20 12:28:28,364 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:28,364 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 122 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 47 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:28,364 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 410 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 482 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-03-20 12:28:28,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-03-20 12:28:28,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 325. [2022-03-20 12:28:28,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.509375) internal successors, (483), 320 states have internal predecessors, (483), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:28,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 487 transitions. [2022-03-20 12:28:28,370 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 487 transitions. Word has length 109 [2022-03-20 12:28:28,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:28,371 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 487 transitions. [2022-03-20 12:28:28,371 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) [2022-03-20 12:28:28,371 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 487 transitions. [2022-03-20 12:28:28,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-20 12:28:28,372 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:28,372 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:28,372 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 12:28:28,372 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:28,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:28,372 INFO L85 PathProgramCache]: Analyzing trace with hash 399122611, now seen corresponding path program 1 times [2022-03-20 12:28:28,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:28,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696008107] [2022-03-20 12:28:28,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:28,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:28,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:28,461 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:28:28,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:28,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696008107] [2022-03-20 12:28:28,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696008107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:28,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:28,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:28,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682092942] [2022-03-20 12:28:28,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:28,462 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:28,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:28,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:28,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:28,462 INFO L87 Difference]: Start difference. First operand 325 states and 487 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) [2022-03-20 12:28:30,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:30,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:30,882 INFO L93 Difference]: Finished difference Result 767 states and 1162 transitions. [2022-03-20 12:28:30,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:30,883 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 110 [2022-03-20 12:28:30,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:30,884 INFO L225 Difference]: With dead ends: 767 [2022-03-20 12:28:30,884 INFO L226 Difference]: Without dead ends: 468 [2022-03-20 12:28:30,885 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:30,885 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 115 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:30,885 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 372 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 450 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:28:30,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-03-20 12:28:30,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 389. [2022-03-20 12:28:30,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5078125) internal successors, (579), 384 states have internal predecessors, (579), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:30,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 583 transitions. [2022-03-20 12:28:30,892 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 583 transitions. Word has length 110 [2022-03-20 12:28:30,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:30,892 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 583 transitions. [2022-03-20 12:28:30,892 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) [2022-03-20 12:28:30,892 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 583 transitions. [2022-03-20 12:28:30,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-20 12:28:30,893 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:30,893 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:30,893 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 12:28:30,893 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:30,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:30,894 INFO L85 PathProgramCache]: Analyzing trace with hash -314587267, now seen corresponding path program 1 times [2022-03-20 12:28:30,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:30,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499631240] [2022-03-20 12:28:30,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:30,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:30,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:31,003 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:28:31,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:31,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499631240] [2022-03-20 12:28:31,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499631240] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:31,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:31,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:31,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113927432] [2022-03-20 12:28:31,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:31,003 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:31,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:31,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:31,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:31,004 INFO L87 Difference]: Start difference. First operand 389 states and 583 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) [2022-03-20 12:28:34,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:35,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:35,188 INFO L93 Difference]: Finished difference Result 828 states and 1246 transitions. [2022-03-20 12:28:35,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:35,189 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 110 [2022-03-20 12:28:35,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:35,190 INFO L225 Difference]: With dead ends: 828 [2022-03-20 12:28:35,190 INFO L226 Difference]: Without dead ends: 465 [2022-03-20 12:28:35,191 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:35,191 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 71 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:35,191 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 509 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 12:28:35,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-03-20 12:28:35,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 418. [2022-03-20 12:28:35,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 413 states have (on average 1.5036319612590798) internal successors, (621), 413 states have internal predecessors, (621), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:35,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 625 transitions. [2022-03-20 12:28:35,198 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 625 transitions. Word has length 110 [2022-03-20 12:28:35,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:35,199 INFO L478 AbstractCegarLoop]: Abstraction has 418 states and 625 transitions. [2022-03-20 12:28:35,199 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) [2022-03-20 12:28:35,199 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 625 transitions. [2022-03-20 12:28:35,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-20 12:28:35,200 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:35,200 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:35,200 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 12:28:35,200 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:35,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:35,200 INFO L85 PathProgramCache]: Analyzing trace with hash -2122434788, now seen corresponding path program 1 times [2022-03-20 12:28:35,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:35,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152681955] [2022-03-20 12:28:35,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:35,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:35,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:35,292 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-20 12:28:35,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:35,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152681955] [2022-03-20 12:28:35,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152681955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:35,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:35,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:35,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308937658] [2022-03-20 12:28:35,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:35,292 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:35,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:35,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:35,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:35,293 INFO L87 Difference]: Start difference. First operand 418 states and 625 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:37,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:39,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:39,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:39,649 INFO L93 Difference]: Finished difference Result 848 states and 1275 transitions. [2022-03-20 12:28:39,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:39,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 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 110 [2022-03-20 12:28:39,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:39,651 INFO L225 Difference]: With dead ends: 848 [2022-03-20 12:28:39,651 INFO L226 Difference]: Without dead ends: 456 [2022-03-20 12:28:39,651 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:39,652 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 28 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:39,652 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 589 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 12:28:39,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-03-20 12:28:39,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 442. [2022-03-20 12:28:39,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 437 states have (on average 1.5011441647597255) internal successors, (656), 437 states have internal predecessors, (656), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:39,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 660 transitions. [2022-03-20 12:28:39,661 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 660 transitions. Word has length 110 [2022-03-20 12:28:39,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:39,661 INFO L478 AbstractCegarLoop]: Abstraction has 442 states and 660 transitions. [2022-03-20 12:28:39,661 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:39,661 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 660 transitions. [2022-03-20 12:28:39,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 12:28:39,662 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:39,662 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:39,662 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 12:28:39,663 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:39,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:39,663 INFO L85 PathProgramCache]: Analyzing trace with hash -149067405, now seen corresponding path program 1 times [2022-03-20 12:28:39,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:39,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094451292] [2022-03-20 12:28:39,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:39,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:39,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:39,799 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:28:39,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:39,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094451292] [2022-03-20 12:28:39,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094451292] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:39,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:39,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:39,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533927718] [2022-03-20 12:28:39,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:39,800 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:39,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:39,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:39,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:39,801 INFO L87 Difference]: Start difference. First operand 442 states and 660 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:42,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:44,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:44,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:44,804 INFO L93 Difference]: Finished difference Result 965 states and 1448 transitions. [2022-03-20 12:28:44,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:44,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-20 12:28:44,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:44,806 INFO L225 Difference]: With dead ends: 965 [2022-03-20 12:28:44,806 INFO L226 Difference]: Without dead ends: 549 [2022-03-20 12:28:44,806 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:44,807 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 111 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:44,807 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 396 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 12:28:44,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-03-20 12:28:44,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 479. [2022-03-20 12:28:44,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 474 states have (on average 1.5021097046413503) internal successors, (712), 474 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:44,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 716 transitions. [2022-03-20 12:28:44,814 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 716 transitions. Word has length 122 [2022-03-20 12:28:44,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:44,814 INFO L478 AbstractCegarLoop]: Abstraction has 479 states and 716 transitions. [2022-03-20 12:28:44,814 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:44,814 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 716 transitions. [2022-03-20 12:28:44,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 12:28:44,816 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:44,816 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:44,816 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 12:28:44,816 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:44,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:44,817 INFO L85 PathProgramCache]: Analyzing trace with hash -380141108, now seen corresponding path program 1 times [2022-03-20 12:28:44,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:44,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022226774] [2022-03-20 12:28:44,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:44,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:44,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:44,911 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-03-20 12:28:44,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:44,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022226774] [2022-03-20 12:28:44,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022226774] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:44,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:44,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:44,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326745936] [2022-03-20 12:28:44,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:44,912 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:44,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:44,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:44,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:44,912 INFO L87 Difference]: Start difference. First operand 479 states and 716 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:45,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:47,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:49,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:50,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:50,500 INFO L93 Difference]: Finished difference Result 977 states and 1466 transitions. [2022-03-20 12:28:50,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:50,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 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 123 [2022-03-20 12:28:50,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:50,501 INFO L225 Difference]: With dead ends: 977 [2022-03-20 12:28:50,502 INFO L226 Difference]: Without dead ends: 524 [2022-03-20 12:28:50,502 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:50,502 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 80 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:50,503 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 511 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 12:28:50,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-03-20 12:28:50,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 479. [2022-03-20 12:28:50,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 474 states have (on average 1.5) internal successors, (711), 474 states have internal predecessors, (711), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:50,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 715 transitions. [2022-03-20 12:28:50,509 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 715 transitions. Word has length 123 [2022-03-20 12:28:50,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:50,509 INFO L478 AbstractCegarLoop]: Abstraction has 479 states and 715 transitions. [2022-03-20 12:28:50,509 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:50,509 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 715 transitions. [2022-03-20 12:28:50,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 12:28:50,510 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:50,510 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:50,510 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 12:28:50,510 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:50,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:50,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1869899920, now seen corresponding path program 1 times [2022-03-20 12:28:50,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:50,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279019386] [2022-03-20 12:28:50,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:50,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:50,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:50,636 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:28:50,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:50,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279019386] [2022-03-20 12:28:50,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279019386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:50,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:50,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:50,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733714363] [2022-03-20 12:28:50,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:50,637 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:50,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:50,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:50,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:50,638 INFO L87 Difference]: Start difference. First operand 479 states and 715 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:52,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:55,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:56,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:56,048 INFO L93 Difference]: Finished difference Result 973 states and 1458 transitions. [2022-03-20 12:28:56,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:56,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 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 123 [2022-03-20 12:28:56,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:56,050 INFO L225 Difference]: With dead ends: 973 [2022-03-20 12:28:56,050 INFO L226 Difference]: Without dead ends: 520 [2022-03-20 12:28:56,051 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:56,051 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 52 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:56,051 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 515 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 12:28:56,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-03-20 12:28:56,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 490. [2022-03-20 12:28:56,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.5010309278350515) internal successors, (728), 485 states have internal predecessors, (728), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:56,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 732 transitions. [2022-03-20 12:28:56,058 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 732 transitions. Word has length 123 [2022-03-20 12:28:56,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:56,058 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 732 transitions. [2022-03-20 12:28:56,058 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:56,058 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 732 transitions. [2022-03-20 12:28:56,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 12:28:56,059 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:56,059 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:56,059 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 12:28:56,059 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:56,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:56,059 INFO L85 PathProgramCache]: Analyzing trace with hash 486911117, now seen corresponding path program 1 times [2022-03-20 12:28:56,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:56,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476389228] [2022-03-20 12:28:56,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:56,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:56,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:56,147 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-03-20 12:28:56,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:56,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476389228] [2022-03-20 12:28:56,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476389228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:56,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:56,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:56,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032146630] [2022-03-20 12:28:56,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:56,148 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:56,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:56,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:56,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:56,149 INFO L87 Difference]: Start difference. First operand 490 states and 732 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:58,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:00,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:00,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:29:00,802 INFO L93 Difference]: Finished difference Result 1019 states and 1528 transitions. [2022-03-20 12:29:00,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:29:00,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 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 123 [2022-03-20 12:29:00,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:29:00,804 INFO L225 Difference]: With dead ends: 1019 [2022-03-20 12:29:00,804 INFO L226 Difference]: Without dead ends: 555 [2022-03-20 12:29:00,805 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:29:00,805 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 132 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:29:00,806 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 364 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 455 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 12:29:00,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-03-20 12:29:00,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 490. [2022-03-20 12:29:00,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.4845360824742269) internal successors, (720), 485 states have internal predecessors, (720), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:00,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 724 transitions. [2022-03-20 12:29:00,813 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 724 transitions. Word has length 123 [2022-03-20 12:29:00,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:29:00,813 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 724 transitions. [2022-03-20 12:29:00,813 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:00,813 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 724 transitions. [2022-03-20 12:29:00,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-20 12:29:00,814 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:29:00,814 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:29:00,814 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 12:29:00,814 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:29:00,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:29:00,814 INFO L85 PathProgramCache]: Analyzing trace with hash 996942491, now seen corresponding path program 1 times [2022-03-20 12:29:00,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:29:00,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976735248] [2022-03-20 12:29:00,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:29:00,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:29:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:00,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:29:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:00,949 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:29:00,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:29:00,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976735248] [2022-03-20 12:29:00,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976735248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:29:00,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:29:00,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:29:00,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430284333] [2022-03-20 12:29:00,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:29:00,949 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:29:00,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:29:00,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:29:00,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:29:00,950 INFO L87 Difference]: Start difference. First operand 490 states and 724 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:02,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:04,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:05,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:07,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:07,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:29:07,414 INFO L93 Difference]: Finished difference Result 1061 states and 1574 transitions. [2022-03-20 12:29:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:29:07,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 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 130 [2022-03-20 12:29:07,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:29:07,416 INFO L225 Difference]: With dead ends: 1061 [2022-03-20 12:29:07,417 INFO L226 Difference]: Without dead ends: 597 [2022-03-20 12:29:07,417 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:29:07,417 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 104 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:29:07,418 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 367 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-03-20 12:29:07,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-03-20 12:29:07,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 533. [2022-03-20 12:29:07,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 528 states have (on average 1.4867424242424243) internal successors, (785), 528 states have internal predecessors, (785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:07,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 789 transitions. [2022-03-20 12:29:07,425 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 789 transitions. Word has length 130 [2022-03-20 12:29:07,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:29:07,425 INFO L478 AbstractCegarLoop]: Abstraction has 533 states and 789 transitions. [2022-03-20 12:29:07,425 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:07,425 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 789 transitions. [2022-03-20 12:29:07,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 12:29:07,426 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:29:07,426 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:29:07,426 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 12:29:07,426 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:29:07,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:29:07,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1679933841, now seen corresponding path program 1 times [2022-03-20 12:29:07,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:29:07,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006652820] [2022-03-20 12:29:07,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:29:07,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:29:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:07,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:29:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:07,514 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-20 12:29:07,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:29:07,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006652820] [2022-03-20 12:29:07,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006652820] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:29:07,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:29:07,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:29:07,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079671270] [2022-03-20 12:29:07,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:29:07,515 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:29:07,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:29:07,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:29:07,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:29:07,515 INFO L87 Difference]: Start difference. First operand 533 states and 789 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) [2022-03-20 12:29:09,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:09,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:29:09,935 INFO L93 Difference]: Finished difference Result 1107 states and 1644 transitions. [2022-03-20 12:29:09,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:29:09,936 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 131 [2022-03-20 12:29:09,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:29:09,937 INFO L225 Difference]: With dead ends: 1107 [2022-03-20 12:29:09,937 INFO L226 Difference]: Without dead ends: 600 [2022-03-20 12:29:09,938 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:29:09,938 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 124 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:29:09,938 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 380 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:29:09,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-03-20 12:29:09,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 533. [2022-03-20 12:29:09,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 528 states have (on average 1.4696969696969697) internal successors, (776), 528 states have internal predecessors, (776), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:09,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 780 transitions. [2022-03-20 12:29:09,945 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 780 transitions. Word has length 131 [2022-03-20 12:29:09,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:29:09,945 INFO L478 AbstractCegarLoop]: Abstraction has 533 states and 780 transitions. [2022-03-20 12:29:09,945 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) [2022-03-20 12:29:09,945 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 780 transitions. [2022-03-20 12:29:09,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 12:29:09,946 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:29:09,946 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:29:09,946 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 12:29:09,947 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:29:09,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:29:09,947 INFO L85 PathProgramCache]: Analyzing trace with hash -307536964, now seen corresponding path program 1 times [2022-03-20 12:29:09,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:29:09,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235248142] [2022-03-20 12:29:09,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:29:09,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:29:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:10,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:29:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:10,052 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:29:10,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:29:10,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235248142] [2022-03-20 12:29:10,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235248142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:29:10,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:29:10,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:29:10,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596498801] [2022-03-20 12:29:10,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:29:10,053 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:29:10,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:29:10,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:29:10,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:29:10,053 INFO L87 Difference]: Start difference. First operand 533 states and 780 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:13,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:15,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:17,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:17,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:29:17,478 INFO L93 Difference]: Finished difference Result 1064 states and 1561 transitions. [2022-03-20 12:29:17,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:29:17,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 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 131 [2022-03-20 12:29:17,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:29:17,480 INFO L225 Difference]: With dead ends: 1064 [2022-03-20 12:29:17,480 INFO L226 Difference]: Without dead ends: 557 [2022-03-20 12:29:17,481 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:29:17,481 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 39 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:29:17,481 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 535 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 464 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-03-20 12:29:17,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-03-20 12:29:17,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 536. [2022-03-20 12:29:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 531 states have (on average 1.4670433145009416) internal successors, (779), 531 states have internal predecessors, (779), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:17,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 783 transitions. [2022-03-20 12:29:17,488 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 783 transitions. Word has length 131 [2022-03-20 12:29:17,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:29:17,489 INFO L478 AbstractCegarLoop]: Abstraction has 536 states and 783 transitions. [2022-03-20 12:29:17,489 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:17,489 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 783 transitions. [2022-03-20 12:29:17,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 12:29:17,490 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:29:17,490 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:29:17,490 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 12:29:17,490 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:29:17,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:29:17,490 INFO L85 PathProgramCache]: Analyzing trace with hash 194878290, now seen corresponding path program 1 times [2022-03-20 12:29:17,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:29:17,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564816199] [2022-03-20 12:29:17,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:29:17,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:29:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:17,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:29:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:17,599 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-20 12:29:17,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:29:17,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564816199] [2022-03-20 12:29:17,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564816199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:29:17,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:29:17,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:29:17,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774143297] [2022-03-20 12:29:17,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:29:17,600 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:29:17,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:29:17,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:29:17,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:17,600 INFO L87 Difference]: Start difference. First operand 536 states and 783 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:20,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:20,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:29:20,827 INFO L93 Difference]: Finished difference Result 1511 states and 2226 transitions. [2022-03-20 12:29:20,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:29:20,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 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 131 [2022-03-20 12:29:20,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:29:20,830 INFO L225 Difference]: With dead ends: 1511 [2022-03-20 12:29:20,830 INFO L226 Difference]: Without dead ends: 1001 [2022-03-20 12:29:20,831 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:20,831 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:29:20,832 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 433 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 281 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 12:29:20,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2022-03-20 12:29:20,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 1001. [2022-03-20 12:29:20,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.464859437751004) internal successors, (1459), 996 states have internal predecessors, (1459), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:20,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1463 transitions. [2022-03-20 12:29:20,844 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1463 transitions. Word has length 131 [2022-03-20 12:29:20,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:29:20,844 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1463 transitions. [2022-03-20 12:29:20,844 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:20,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1463 transitions. [2022-03-20 12:29:20,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 12:29:20,846 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:29:20,846 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:29:20,846 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 12:29:20,846 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:29:20,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:29:20,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1014363949, now seen corresponding path program 1 times [2022-03-20 12:29:20,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:29:20,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473487478] [2022-03-20 12:29:20,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:29:20,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:29:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:20,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:29:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:20,930 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-03-20 12:29:20,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:29:20,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473487478] [2022-03-20 12:29:20,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473487478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:29:20,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:29:20,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:29:20,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958582121] [2022-03-20 12:29:20,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:29:20,931 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:29:20,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:29:20,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:29:20,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:20,931 INFO L87 Difference]: Start difference. First operand 1001 states and 1463 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:22,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:24,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:26,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:26,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:29:26,371 INFO L93 Difference]: Finished difference Result 2003 states and 2933 transitions. [2022-03-20 12:29:26,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:29:26,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 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 131 [2022-03-20 12:29:26,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:29:26,374 INFO L225 Difference]: With dead ends: 2003 [2022-03-20 12:29:26,374 INFO L226 Difference]: Without dead ends: 1028 [2022-03-20 12:29:26,375 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:26,375 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:29:26,375 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 249 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 12:29:26,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2022-03-20 12:29:26,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1028. [2022-03-20 12:29:26,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1023 states have (on average 1.4604105571847508) internal successors, (1494), 1023 states have internal predecessors, (1494), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:26,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1498 transitions. [2022-03-20 12:29:26,389 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1498 transitions. Word has length 131 [2022-03-20 12:29:26,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:29:26,389 INFO L478 AbstractCegarLoop]: Abstraction has 1028 states and 1498 transitions. [2022-03-20 12:29:26,389 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:26,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1498 transitions. [2022-03-20 12:29:26,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 12:29:26,391 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:29:26,391 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:29:26,391 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 12:29:26,392 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:29:26,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:29:26,392 INFO L85 PathProgramCache]: Analyzing trace with hash -955143212, now seen corresponding path program 1 times [2022-03-20 12:29:26,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:29:26,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810032290] [2022-03-20 12:29:26,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:29:26,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:29:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:26,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:29:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:26,465 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-20 12:29:26,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:29:26,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810032290] [2022-03-20 12:29:26,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810032290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:29:26,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:29:26,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:29:26,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208857771] [2022-03-20 12:29:26,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:29:26,465 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:29:26,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:29:26,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:29:26,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:26,466 INFO L87 Difference]: Start difference. First operand 1028 states and 1498 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:29,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:31,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:31,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:29:31,410 INFO L93 Difference]: Finished difference Result 2032 states and 2969 transitions. [2022-03-20 12:29:31,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:29:31,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-20 12:29:31,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:29:31,413 INFO L225 Difference]: With dead ends: 2032 [2022-03-20 12:29:31,414 INFO L226 Difference]: Without dead ends: 1030 [2022-03-20 12:29:31,415 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:31,415 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:29:31,415 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 12:29:31,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-03-20 12:29:31,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1030. [2022-03-20 12:29:31,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 1025 states have (on average 1.4595121951219512) internal successors, (1496), 1025 states have internal predecessors, (1496), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:31,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1500 transitions. [2022-03-20 12:29:31,428 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1500 transitions. Word has length 131 [2022-03-20 12:29:31,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:29:31,428 INFO L478 AbstractCegarLoop]: Abstraction has 1030 states and 1500 transitions. [2022-03-20 12:29:31,428 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:31,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1500 transitions. [2022-03-20 12:29:31,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 12:29:31,429 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:29:31,429 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:29:31,429 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 12:29:31,429 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:29:31,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:29:31,430 INFO L85 PathProgramCache]: Analyzing trace with hash -763774951, now seen corresponding path program 1 times [2022-03-20 12:29:31,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:29:31,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006517125] [2022-03-20 12:29:31,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:29:31,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:29:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:31,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:29:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:31,551 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-20 12:29:31,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:29:31,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006517125] [2022-03-20 12:29:31,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006517125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:29:31,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:29:31,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:29:31,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469042679] [2022-03-20 12:29:31,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:29:31,551 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:29:31,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:29:31,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:29:31,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:31,552 INFO L87 Difference]: Start difference. First operand 1030 states and 1500 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:33,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:35,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:37,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:37,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:29:37,683 INFO L93 Difference]: Finished difference Result 2542 states and 3721 transitions. [2022-03-20 12:29:37,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:29:37,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-20 12:29:37,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:29:37,687 INFO L225 Difference]: With dead ends: 2542 [2022-03-20 12:29:37,687 INFO L226 Difference]: Without dead ends: 1540 [2022-03-20 12:29:37,688 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:37,689 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:29:37,689 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 380 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 245 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-20 12:29:37,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2022-03-20 12:29:37,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1538. [2022-03-20 12:29:37,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1533 states have (on average 1.4651011089367254) internal successors, (2246), 1533 states have internal predecessors, (2246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:37,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2250 transitions. [2022-03-20 12:29:37,709 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2250 transitions. Word has length 133 [2022-03-20 12:29:37,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:29:37,710 INFO L478 AbstractCegarLoop]: Abstraction has 1538 states and 2250 transitions. [2022-03-20 12:29:37,710 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:37,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2250 transitions. [2022-03-20 12:29:37,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-20 12:29:37,713 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:29:37,714 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:29:37,714 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 12:29:37,714 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:29:37,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:29:37,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1588802902, now seen corresponding path program 1 times [2022-03-20 12:29:37,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:29:37,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919453353] [2022-03-20 12:29:37,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:29:37,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:29:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:29:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:37,809 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 12:29:37,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:29:37,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919453353] [2022-03-20 12:29:37,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919453353] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:29:37,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:29:37,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:29:37,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330449325] [2022-03-20 12:29:37,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:29:37,810 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:29:37,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:29:37,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:29:37,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:37,810 INFO L87 Difference]: Start difference. First operand 1538 states and 2250 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:40,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:42,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:42,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:29:42,805 INFO L93 Difference]: Finished difference Result 2050 states and 3004 transitions. [2022-03-20 12:29:42,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:29:42,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-20 12:29:42,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:29:42,810 INFO L225 Difference]: With dead ends: 2050 [2022-03-20 12:29:42,810 INFO L226 Difference]: Without dead ends: 2048 [2022-03-20 12:29:42,811 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:42,812 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:29:42,812 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 12:29:42,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2022-03-20 12:29:42,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 2046. [2022-03-20 12:29:42,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2046 states, 2041 states have (on average 1.4683978441940226) internal successors, (2997), 2041 states have internal predecessors, (2997), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:42,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 3001 transitions. [2022-03-20 12:29:42,861 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 3001 transitions. Word has length 134 [2022-03-20 12:29:42,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:29:42,862 INFO L478 AbstractCegarLoop]: Abstraction has 2046 states and 3001 transitions. [2022-03-20 12:29:42,862 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:42,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 3001 transitions. [2022-03-20 12:29:42,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-20 12:29:42,864 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:29:42,864 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:29:42,864 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 12:29:42,864 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:29:42,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:29:42,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1380102266, now seen corresponding path program 1 times [2022-03-20 12:29:42,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:29:42,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569923837] [2022-03-20 12:29:42,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:29:42,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:29:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:42,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:29:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:42,950 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 12:29:42,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:29:42,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569923837] [2022-03-20 12:29:42,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569923837] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:29:42,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:29:42,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:29:42,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874007966] [2022-03-20 12:29:42,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:29:42,953 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:29:42,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:29:42,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:29:42,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:42,953 INFO L87 Difference]: Start difference. First operand 2046 states and 3001 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:44,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:45,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:29:45,431 INFO L93 Difference]: Finished difference Result 4574 states and 6721 transitions. [2022-03-20 12:29:45,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:29:45,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 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 147 [2022-03-20 12:29:45,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:29:45,438 INFO L225 Difference]: With dead ends: 4574 [2022-03-20 12:29:45,438 INFO L226 Difference]: Without dead ends: 2556 [2022-03-20 12:29:45,440 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:45,440 INFO L913 BasicCegarLoop]: 382 mSDtfsCounter, 151 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:29:45,441 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 576 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 425 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:29:45,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2022-03-20 12:29:45,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2554. [2022-03-20 12:29:45,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 2549 states have (on average 1.4617497057669675) internal successors, (3726), 2549 states have internal predecessors, (3726), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:45,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 3730 transitions. [2022-03-20 12:29:45,475 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 3730 transitions. Word has length 147 [2022-03-20 12:29:45,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:29:45,476 INFO L478 AbstractCegarLoop]: Abstraction has 2554 states and 3730 transitions. [2022-03-20 12:29:45,476 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:45,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 3730 transitions. [2022-03-20 12:29:45,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-20 12:29:45,478 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:29:45,479 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:29:45,479 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 12:29:45,479 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:29:45,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:29:45,479 INFO L85 PathProgramCache]: Analyzing trace with hash 809864280, now seen corresponding path program 1 times [2022-03-20 12:29:45,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:29:45,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900156598] [2022-03-20 12:29:45,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:29:45,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:29:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:45,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:29:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:45,590 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 12:29:45,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:29:45,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900156598] [2022-03-20 12:29:45,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900156598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:29:45,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:29:45,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:29:45,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308110928] [2022-03-20 12:29:45,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:29:45,591 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:29:45,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:29:45,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:29:45,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:29:45,591 INFO L87 Difference]: Start difference. First operand 2554 states and 3730 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:46,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:48,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:49,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:51,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:51,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:29:51,900 INFO L93 Difference]: Finished difference Result 5404 states and 7866 transitions. [2022-03-20 12:29:51,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:29:51,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-03-20 12:29:51,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:29:51,906 INFO L225 Difference]: With dead ends: 5404 [2022-03-20 12:29:51,907 INFO L226 Difference]: Without dead ends: 2878 [2022-03-20 12:29:51,909 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:29:51,909 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 109 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:29:51,910 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 378 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-20 12:29:51,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2022-03-20 12:29:51,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2554. [2022-03-20 12:29:51,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 2549 states have (on average 1.456257355825814) internal successors, (3712), 2549 states have internal predecessors, (3712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:51,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 3716 transitions. [2022-03-20 12:29:51,946 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 3716 transitions. Word has length 164 [2022-03-20 12:29:51,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:29:51,946 INFO L478 AbstractCegarLoop]: Abstraction has 2554 states and 3716 transitions. [2022-03-20 12:29:51,946 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:51,946 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 3716 transitions. [2022-03-20 12:29:51,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 12:29:51,949 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:29:51,949 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:29:51,949 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 12:29:51,949 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:29:51,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:29:51,950 INFO L85 PathProgramCache]: Analyzing trace with hash 243838419, now seen corresponding path program 1 times [2022-03-20 12:29:51,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:29:51,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216796832] [2022-03-20 12:29:51,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:29:51,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:29:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:52,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:29:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:52,090 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-20 12:29:52,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:29:52,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216796832] [2022-03-20 12:29:52,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216796832] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:29:52,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:29:52,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:29:52,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764649338] [2022-03-20 12:29:52,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:29:52,092 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:29:52,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:29:52,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:29:52,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:52,093 INFO L87 Difference]: Start difference. First operand 2554 states and 3716 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:54,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:55,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:29:55,174 INFO L93 Difference]: Finished difference Result 5554 states and 8099 transitions. [2022-03-20 12:29:55,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:29:55,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 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 171 [2022-03-20 12:29:55,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:29:55,181 INFO L225 Difference]: With dead ends: 5554 [2022-03-20 12:29:55,181 INFO L226 Difference]: Without dead ends: 3028 [2022-03-20 12:29:55,184 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:55,184 INFO L913 BasicCegarLoop]: 386 mSDtfsCounter, 144 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:29:55,184 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 580 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 12:29:55,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3028 states. [2022-03-20 12:29:55,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3028 to 3028. [2022-03-20 12:29:55,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3028 states, 3023 states have (on average 1.4565001653986107) internal successors, (4403), 3023 states have internal predecessors, (4403), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:55,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3028 states to 3028 states and 4407 transitions. [2022-03-20 12:29:55,225 INFO L78 Accepts]: Start accepts. Automaton has 3028 states and 4407 transitions. Word has length 171 [2022-03-20 12:29:55,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:29:55,226 INFO L478 AbstractCegarLoop]: Abstraction has 3028 states and 4407 transitions. [2022-03-20 12:29:55,226 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:55,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3028 states and 4407 transitions. [2022-03-20 12:29:55,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 12:29:55,229 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:29:55,229 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:29:55,229 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 12:29:55,229 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:29:55,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:29:55,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1691821868, now seen corresponding path program 1 times [2022-03-20 12:29:55,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:29:55,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015232633] [2022-03-20 12:29:55,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:29:55,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:29:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:55,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:29:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:55,393 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 12:29:55,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:29:55,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015232633] [2022-03-20 12:29:55,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015232633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:29:55,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:29:55,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:29:55,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352697993] [2022-03-20 12:29:55,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:29:55,394 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:29:55,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:29:55,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:29:55,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:55,395 INFO L87 Difference]: Start difference. First operand 3028 states and 4407 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:59,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:29:59,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:29:59,529 INFO L93 Difference]: Finished difference Result 6500 states and 9477 transitions. [2022-03-20 12:29:59,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:29:59,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 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 171 [2022-03-20 12:29:59,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:29:59,565 INFO L225 Difference]: With dead ends: 6500 [2022-03-20 12:29:59,565 INFO L226 Difference]: Without dead ends: 3500 [2022-03-20 12:29:59,568 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:29:59,569 INFO L913 BasicCegarLoop]: 379 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:29:59,569 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 573 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 421 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 12:29:59,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3500 states. [2022-03-20 12:29:59,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3500 to 3500. [2022-03-20 12:29:59,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3500 states, 3495 states have (on average 1.4563662374821174) internal successors, (5090), 3495 states have internal predecessors, (5090), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:59,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3500 states to 3500 states and 5094 transitions. [2022-03-20 12:29:59,619 INFO L78 Accepts]: Start accepts. Automaton has 3500 states and 5094 transitions. Word has length 171 [2022-03-20 12:29:59,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:29:59,619 INFO L478 AbstractCegarLoop]: Abstraction has 3500 states and 5094 transitions. [2022-03-20 12:29:59,619 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:29:59,619 INFO L276 IsEmpty]: Start isEmpty. Operand 3500 states and 5094 transitions. [2022-03-20 12:29:59,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-20 12:29:59,623 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:29:59,623 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:29:59,624 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 12:29:59,624 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:29:59,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:29:59,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1796815194, now seen corresponding path program 1 times [2022-03-20 12:29:59,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:29:59,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797223632] [2022-03-20 12:29:59,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:29:59,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:29:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:59,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:29:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:29:59,748 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-03-20 12:29:59,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:29:59,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797223632] [2022-03-20 12:29:59,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797223632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:29:59,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:29:59,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:29:59,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651575839] [2022-03-20 12:29:59,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:29:59,748 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:29:59,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:29:59,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:29:59,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:29:59,749 INFO L87 Difference]: Start difference. First operand 3500 states and 5094 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:30:02,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:30:04,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:30:04,387 INFO L93 Difference]: Finished difference Result 7126 states and 10369 transitions. [2022-03-20 12:30:04,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:30:04,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 231 [2022-03-20 12:30:04,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:30:04,393 INFO L225 Difference]: With dead ends: 7126 [2022-03-20 12:30:04,393 INFO L226 Difference]: Without dead ends: 3654 [2022-03-20 12:30:04,397 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:30:04,398 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 39 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:30:04,398 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 572 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 12:30:04,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2022-03-20 12:30:04,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 3500. [2022-03-20 12:30:04,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3500 states, 3495 states have (on average 1.4543633762517882) internal successors, (5083), 3495 states have internal predecessors, (5083), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:30:04,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3500 states to 3500 states and 5087 transitions. [2022-03-20 12:30:04,448 INFO L78 Accepts]: Start accepts. Automaton has 3500 states and 5087 transitions. Word has length 231 [2022-03-20 12:30:04,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:30:04,448 INFO L478 AbstractCegarLoop]: Abstraction has 3500 states and 5087 transitions. [2022-03-20 12:30:04,448 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:30:04,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3500 states and 5087 transitions. [2022-03-20 12:30:04,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-20 12:30:04,453 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:30:04,453 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:30:04,453 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 12:30:04,453 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:30:04,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:30:04,453 INFO L85 PathProgramCache]: Analyzing trace with hash -446725025, now seen corresponding path program 1 times [2022-03-20 12:30:04,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:30:04,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921503308] [2022-03-20 12:30:04,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:30:04,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:30:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:30:04,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:30:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:30:04,769 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-03-20 12:30:04,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:30:04,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921503308] [2022-03-20 12:30:04,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921503308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:30:04,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:30:04,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 12:30:04,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048809483] [2022-03-20 12:30:04,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:30:04,770 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 12:30:04,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:30:04,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 12:30:04,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 12:30:04,770 INFO L87 Difference]: Start difference. First operand 3500 states and 5087 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:30:07,253 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 [] [2022-03-20 12:30:09,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:30:11,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:30:13,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:30:14,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:30:14,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:30:14,869 INFO L93 Difference]: Finished difference Result 6993 states and 10166 transitions. [2022-03-20 12:30:14,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 12:30:14,869 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2022-03-20 12:30:14,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:30:14,874 INFO L225 Difference]: With dead ends: 6993 [2022-03-20 12:30:14,874 INFO L226 Difference]: Without dead ends: 3500 [2022-03-20 12:30:14,877 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-20 12:30:14,877 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:30:14,878 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 440 Invalid, 4 Unknown, 0 Unchecked, 10.0s Time] [2022-03-20 12:30:14,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3500 states. [2022-03-20 12:30:14,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3500 to 3500. [2022-03-20 12:30:14,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3500 states, 3495 states have (on average 1.4540772532188841) internal successors, (5082), 3495 states have internal predecessors, (5082), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:30:14,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3500 states to 3500 states and 5086 transitions. [2022-03-20 12:30:14,950 INFO L78 Accepts]: Start accepts. Automaton has 3500 states and 5086 transitions. Word has length 235 [2022-03-20 12:30:14,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:30:14,950 INFO L478 AbstractCegarLoop]: Abstraction has 3500 states and 5086 transitions. [2022-03-20 12:30:14,950 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:30:14,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3500 states and 5086 transitions. [2022-03-20 12:30:14,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-20 12:30:14,954 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:30:14,954 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:30:14,954 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 12:30:14,954 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:30:14,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:30:14,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1106362336, now seen corresponding path program 1 times [2022-03-20 12:30:14,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:30:14,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577984411] [2022-03-20 12:30:14,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:30:14,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:30:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:30:15,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:30:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:30:15,969 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 151 proven. 269 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 12:30:15,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:30:15,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577984411] [2022-03-20 12:30:15,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577984411] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:30:15,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311367618] [2022-03-20 12:30:15,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:30:15,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:30:15,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:30:15,971 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:30:15,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 12:30:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:30:16,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 217 conjunts are in the unsatisfiable core [2022-03-20 12:30:16,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:30:17,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:17,113 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 20 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11573 treesize of output 2526