/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.06.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 00:42:20,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 00:42:20,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 00:42:20,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-24 00:42:20,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-24 00:42:20,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-24 00:42:20,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-24 00:42:20,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-24 00:42:20,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-24 00:42:20,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-24 00:42:20,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-24 00:42:20,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-24 00:42:20,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 00:42:20,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 00:42:20,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 00:42:20,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 00:42:20,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 00:42:20,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 00:42:20,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 00:42:20,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 00:42:20,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 00:42:20,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 00:42:20,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 00:42:20,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 00:42:20,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-24 00:42:20,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 00:42:20,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 00:42:20,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 00:42:20,180 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-02-24 00:42:20,203 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 00:42:20,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 00:42:20,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-24 00:42:20,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-24 00:42:20,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-24 00:42:20,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-24 00:42:20,206 INFO L138 SettingsManager]: * Use SBE=true [2022-02-24 00:42:20,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 00:42:20,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 00:42:20,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 00:42:20,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 00:42:20,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 00:42:20,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 00:42:20,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 00:42:20,207 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 00:42:20,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 00:42:20,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 00:42:20,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 00:42:20,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 00:42:20,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:42:20,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 00:42:20,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-24 00:42:20,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-24 00:42:20,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-24 00:42:20,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-24 00:42:20,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 00:42:20,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-02-24 00:42:20,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-24 00:42:20,209 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-24 00:42:20,209 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 00:42:20,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 00:42:20,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 00:42:20,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 00:42:20,429 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 00:42:20,430 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 00:42:20,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-02-24 00:42:20,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d584072c/ccc5ac4d9efd4825bc4472184ed3ed82/FLAG7d52efb11 [2022-02-24 00:42:20,912 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 00:42:20,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-02-24 00:42:20,928 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d584072c/ccc5ac4d9efd4825bc4472184ed3ed82/FLAG7d52efb11 [2022-02-24 00:42:21,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d584072c/ccc5ac4d9efd4825bc4472184ed3ed82 [2022-02-24 00:42:21,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 00:42:21,222 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-24 00:42:21,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 00:42:21,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 00:42:21,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 00:42:21,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:42:21" (1/1) ... [2022-02-24 00:42:21,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7373e02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:21, skipping insertion in model container [2022-02-24 00:42:21,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:42:21" (1/1) ... [2022-02-24 00:42:21,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 00:42:21,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 00:42:21,545 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.06.i.cil-1.c[78520,78533] [2022-02-24 00:42:21,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:42:21,571 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 00:42:21,668 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.06.i.cil-1.c[78520,78533] [2022-02-24 00:42:21,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:42:21,691 INFO L208 MainTranslator]: Completed translation [2022-02-24 00:42:21,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:21 WrapperNode [2022-02-24 00:42:21,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 00:42:21,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 00:42:21,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 00:42:21,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 00:42:21,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:21" (1/1) ... [2022-02-24 00:42:21,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:21" (1/1) ... [2022-02-24 00:42:21,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:21" (1/1) ... [2022-02-24 00:42:21,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:21" (1/1) ... [2022-02-24 00:42:21,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:21" (1/1) ... [2022-02-24 00:42:21,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:21" (1/1) ... [2022-02-24 00:42:21,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:21" (1/1) ... [2022-02-24 00:42:21,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 00:42:21,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 00:42:21,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 00:42:21,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 00:42:21,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:21" (1/1) ... [2022-02-24 00:42:21,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:42:21,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:42:21,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-24 00:42:21,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 00:42:21,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 00:42:21,845 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 00:42:21,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-24 00:42:21,845 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-24 00:42:21,845 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 00:42:21,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-24 00:42:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-24 00:42:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-24 00:42:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-24 00:42:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 00:42:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 00:42:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 00:42:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 00:42:21,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-24 00:42:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 00:42:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 00:42:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 00:42:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 00:42:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-24 00:42:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-24 00:42:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-24 00:42:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-24 00:42:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-24 00:42:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-24 00:42:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-24 00:42:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-24 00:42:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 00:42:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 00:42:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 00:42:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-24 00:42:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 00:42:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-24 00:42:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-24 00:42:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 00:42:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 00:42:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 00:42:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-24 00:42:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-24 00:42:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-24 00:42:21,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-24 00:42:21,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 00:42:22,003 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 00:42:22,004 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 00:42:22,971 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 00:42:23,356 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-24 00:42:23,356 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-24 00:42:23,366 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 00:42:23,372 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 00:42:23,372 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 00:42:23,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:42:23 BoogieIcfgContainer [2022-02-24 00:42:23,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 00:42:23,374 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-24 00:42:23,374 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-24 00:42:23,375 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-24 00:42:23,377 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:42:23" (1/1) ... [2022-02-24 00:42:23,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:42:23 BasicIcfg [2022-02-24 00:42:23,411 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-24 00:42:23,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 00:42:23,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 00:42:23,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 00:42:23,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:42:21" (1/4) ... [2022-02-24 00:42:23,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98671d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:42:23, skipping insertion in model container [2022-02-24 00:42:23,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:21" (2/4) ... [2022-02-24 00:42:23,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98671d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:42:23, skipping insertion in model container [2022-02-24 00:42:23,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:42:23" (3/4) ... [2022-02-24 00:42:23,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98671d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:42:23, skipping insertion in model container [2022-02-24 00:42:23,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:42:23" (4/4) ... [2022-02-24 00:42:23,416 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.06.i.cil-1.cqvasr [2022-02-24 00:42:23,419 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-24 00:42:23,420 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 00:42:23,449 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 00:42:23,454 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-24 00:42:23,454 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 00:42:23,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 00:42:23,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-24 00:42:23,475 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:23,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:23,476 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:23,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:23,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1558367979, now seen corresponding path program 1 times [2022-02-24 00:42:23,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:23,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408634027] [2022-02-24 00:42:23,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:23,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:23,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:23,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:42:23,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:23,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408634027] [2022-02-24 00:42:23,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408634027] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:23,978 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:23,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:23,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848013900] [2022-02-24 00:42:23,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:23,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:23,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:24,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:24,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:24,005 INFO L87 Difference]: Start difference. First operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 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 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:27,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:29,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:30,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:30,244 INFO L93 Difference]: Finished difference Result 356 states and 604 transitions. [2022-02-24 00:42:30,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:30,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 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 51 [2022-02-24 00:42:30,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:30,254 INFO L225 Difference]: With dead ends: 356 [2022-02-24 00:42:30,255 INFO L226 Difference]: Without dead ends: 181 [2022-02-24 00:42:30,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:30,264 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 34 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:30,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 673 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 435 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 00:42:30,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-02-24 00:42:30,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 164. [2022-02-24 00:42:30,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 159 states have (on average 1.5849056603773586) internal successors, (252), 159 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:30,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 256 transitions. [2022-02-24 00:42:30,299 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 256 transitions. Word has length 51 [2022-02-24 00:42:30,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:30,300 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 256 transitions. [2022-02-24 00:42:30,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:30,300 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 256 transitions. [2022-02-24 00:42:30,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-24 00:42:30,301 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:30,302 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:30,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 00:42:30,302 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:30,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:30,303 INFO L85 PathProgramCache]: Analyzing trace with hash -347522956, now seen corresponding path program 1 times [2022-02-24 00:42:30,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:30,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089563460] [2022-02-24 00:42:30,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:30,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:30,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:30,450 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:42:30,450 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:30,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089563460] [2022-02-24 00:42:30,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089563460] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:30,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:30,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:30,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506998227] [2022-02-24 00:42:30,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:30,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:30,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:30,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:30,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:30,453 INFO L87 Difference]: Start difference. First operand 164 states and 256 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) [2022-02-24 00:42:33,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:33,437 INFO L93 Difference]: Finished difference Result 429 states and 676 transitions. [2022-02-24 00:42:33,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:33,437 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 64 [2022-02-24 00:42:33,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:33,439 INFO L225 Difference]: With dead ends: 429 [2022-02-24 00:42:33,439 INFO L226 Difference]: Without dead ends: 291 [2022-02-24 00:42:33,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:33,441 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 163 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:33,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 732 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-02-24 00:42:33,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-02-24 00:42:33,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 180. [2022-02-24 00:42:33,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.582857142857143) internal successors, (277), 175 states have internal predecessors, (277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:33,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 281 transitions. [2022-02-24 00:42:33,451 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 281 transitions. Word has length 64 [2022-02-24 00:42:33,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:33,451 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 281 transitions. [2022-02-24 00:42:33,451 INFO L471 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) [2022-02-24 00:42:33,452 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 281 transitions. [2022-02-24 00:42:33,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-24 00:42:33,453 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:33,453 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:33,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 00:42:33,453 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:33,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:33,453 INFO L85 PathProgramCache]: Analyzing trace with hash -443806277, now seen corresponding path program 1 times [2022-02-24 00:42:33,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:33,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95506341] [2022-02-24 00:42:33,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:33,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:33,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:33,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:42:33,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:33,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95506341] [2022-02-24 00:42:33,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95506341] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:33,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:33,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:33,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657028283] [2022-02-24 00:42:33,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:33,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:33,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:33,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:33,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:33,582 INFO L87 Difference]: Start difference. First operand 180 states and 281 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) [2022-02-24 00:42:34,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:36,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:38,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:39,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:39,291 INFO L93 Difference]: Finished difference Result 350 states and 545 transitions. [2022-02-24 00:42:39,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:39,292 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 65 [2022-02-24 00:42:39,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:39,293 INFO L225 Difference]: With dead ends: 350 [2022-02-24 00:42:39,293 INFO L226 Difference]: Without dead ends: 196 [2022-02-24 00:42:39,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:39,294 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 28 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:39,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 551 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-24 00:42:39,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-02-24 00:42:39,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 180. [2022-02-24 00:42:39,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.5771428571428572) internal successors, (276), 175 states have internal predecessors, (276), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:39,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 280 transitions. [2022-02-24 00:42:39,303 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 280 transitions. Word has length 65 [2022-02-24 00:42:39,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:39,303 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 280 transitions. [2022-02-24 00:42:39,303 INFO L471 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) [2022-02-24 00:42:39,303 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 280 transitions. [2022-02-24 00:42:39,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-24 00:42:39,304 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:39,304 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:39,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 00:42:39,304 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:39,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:39,305 INFO L85 PathProgramCache]: Analyzing trace with hash 518015387, now seen corresponding path program 1 times [2022-02-24 00:42:39,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:39,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037728325] [2022-02-24 00:42:39,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:39,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:39,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:39,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:42:39,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:39,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037728325] [2022-02-24 00:42:39,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037728325] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:39,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:39,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:39,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102243957] [2022-02-24 00:42:39,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:39,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:39,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:39,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:39,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:39,469 INFO L87 Difference]: Start difference. First operand 180 states and 280 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) [2022-02-24 00:42:42,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:44,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:45,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:45,122 INFO L93 Difference]: Finished difference Result 350 states and 544 transitions. [2022-02-24 00:42:45,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:45,122 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 65 [2022-02-24 00:42:45,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:45,123 INFO L225 Difference]: With dead ends: 350 [2022-02-24 00:42:45,123 INFO L226 Difference]: Without dead ends: 196 [2022-02-24 00:42:45,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:45,125 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 26 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:45,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 551 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 382 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 00:42:45,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-02-24 00:42:45,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 180. [2022-02-24 00:42:45,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.5714285714285714) internal successors, (275), 175 states have internal predecessors, (275), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:45,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 279 transitions. [2022-02-24 00:42:45,132 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 279 transitions. Word has length 65 [2022-02-24 00:42:45,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:45,132 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 279 transitions. [2022-02-24 00:42:45,132 INFO L471 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) [2022-02-24 00:42:45,132 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 279 transitions. [2022-02-24 00:42:45,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-24 00:42:45,133 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:45,133 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:45,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 00:42:45,133 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:45,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:45,134 INFO L85 PathProgramCache]: Analyzing trace with hash 2105726299, now seen corresponding path program 1 times [2022-02-24 00:42:45,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:45,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862234723] [2022-02-24 00:42:45,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:45,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:45,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:45,255 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:42:45,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:45,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862234723] [2022-02-24 00:42:45,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862234723] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:45,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:45,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:45,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120617562] [2022-02-24 00:42:45,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:45,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:45,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:45,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:45,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:45,257 INFO L87 Difference]: Start difference. First operand 180 states and 279 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) [2022-02-24 00:42:46,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:48,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:50,958 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 [] [2022-02-24 00:42:51,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:51,451 INFO L93 Difference]: Finished difference Result 461 states and 725 transitions. [2022-02-24 00:42:51,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:51,452 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 65 [2022-02-24 00:42:51,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:51,453 INFO L225 Difference]: With dead ends: 461 [2022-02-24 00:42:51,453 INFO L226 Difference]: Without dead ends: 307 [2022-02-24 00:42:51,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:51,454 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 162 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:51,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 408 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 497 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 00:42:51,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-02-24 00:42:51,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 197. [2022-02-24 00:42:51,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.5729166666666667) internal successors, (302), 192 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:51,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 306 transitions. [2022-02-24 00:42:51,461 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 306 transitions. Word has length 65 [2022-02-24 00:42:51,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:51,461 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 306 transitions. [2022-02-24 00:42:51,461 INFO L471 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) [2022-02-24 00:42:51,461 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 306 transitions. [2022-02-24 00:42:51,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-24 00:42:51,462 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:51,462 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-24 00:42:51,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 00:42:51,463 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:51,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:51,463 INFO L85 PathProgramCache]: Analyzing trace with hash 173308475, now seen corresponding path program 1 times [2022-02-24 00:42:51,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:51,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408513326] [2022-02-24 00:42:51,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:51,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:51,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:51,558 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:42:51,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:51,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408513326] [2022-02-24 00:42:51,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408513326] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:51,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:51,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:51,559 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112666784] [2022-02-24 00:42:51,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:51,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:51,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:51,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:51,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:51,560 INFO L87 Difference]: Start difference. First operand 197 states and 306 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) [2022-02-24 00:42:53,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:54,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:56,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:56,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:56,326 INFO L93 Difference]: Finished difference Result 381 states and 595 transitions. [2022-02-24 00:42:56,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:56,326 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 65 [2022-02-24 00:42:56,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:56,327 INFO L225 Difference]: With dead ends: 381 [2022-02-24 00:42:56,328 INFO L226 Difference]: Without dead ends: 210 [2022-02-24 00:42:56,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:56,329 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 18 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:56,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 557 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-02-24 00:42:56,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-02-24 00:42:56,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 197. [2022-02-24 00:42:56,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.5677083333333333) internal successors, (301), 192 states have internal predecessors, (301), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:56,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 305 transitions. [2022-02-24 00:42:56,334 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 305 transitions. Word has length 65 [2022-02-24 00:42:56,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:56,335 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 305 transitions. [2022-02-24 00:42:56,335 INFO L471 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) [2022-02-24 00:42:56,335 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 305 transitions. [2022-02-24 00:42:56,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:42:56,335 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:56,336 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-24 00:42:56,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 00:42:56,336 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:56,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:56,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1737888044, now seen corresponding path program 1 times [2022-02-24 00:42:56,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:56,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882118730] [2022-02-24 00:42:56,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:56,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:56,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:56,439 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:42:56,439 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:56,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882118730] [2022-02-24 00:42:56,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882118730] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:56,439 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:56,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:56,439 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804753996] [2022-02-24 00:42:56,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:56,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:56,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:56,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:56,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:56,441 INFO L87 Difference]: Start difference. First operand 197 states and 305 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) [2022-02-24 00:42:58,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:58,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:58,791 INFO L93 Difference]: Finished difference Result 381 states and 594 transitions. [2022-02-24 00:42:58,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:58,791 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 66 [2022-02-24 00:42:58,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:58,792 INFO L225 Difference]: With dead ends: 381 [2022-02-24 00:42:58,792 INFO L226 Difference]: Without dead ends: 210 [2022-02-24 00:42:58,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:58,793 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 22 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:58,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 557 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 374 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:42:58,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-02-24 00:42:58,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 197. [2022-02-24 00:42:58,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.5625) internal successors, (300), 192 states have internal predecessors, (300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:58,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 304 transitions. [2022-02-24 00:42:58,798 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 304 transitions. Word has length 66 [2022-02-24 00:42:58,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:58,798 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 304 transitions. [2022-02-24 00:42:58,798 INFO L471 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) [2022-02-24 00:42:58,798 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 304 transitions. [2022-02-24 00:42:58,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-24 00:42:58,799 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:58,799 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:58,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 00:42:58,799 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:58,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:58,800 INFO L85 PathProgramCache]: Analyzing trace with hash 926906423, now seen corresponding path program 1 times [2022-02-24 00:42:58,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:58,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687080861] [2022-02-24 00:42:58,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:58,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:58,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:58,913 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:42:58,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:58,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687080861] [2022-02-24 00:42:58,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687080861] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:58,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:58,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:58,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976784295] [2022-02-24 00:42:58,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:58,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:58,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:58,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:58,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:58,915 INFO L87 Difference]: Start difference. First operand 197 states and 304 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) [2022-02-24 00:43:00,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:02,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:04,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:04,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:04,733 INFO L93 Difference]: Finished difference Result 478 states and 749 transitions. [2022-02-24 00:43:04,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:04,734 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 67 [2022-02-24 00:43:04,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:04,735 INFO L225 Difference]: With dead ends: 478 [2022-02-24 00:43:04,735 INFO L226 Difference]: Without dead ends: 307 [2022-02-24 00:43:04,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:04,736 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 164 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:04,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 408 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-02-24 00:43:04,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-02-24 00:43:04,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 197. [2022-02-24 00:43:04,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.546875) internal successors, (297), 192 states have internal predecessors, (297), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:04,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 301 transitions. [2022-02-24 00:43:04,741 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 301 transitions. Word has length 67 [2022-02-24 00:43:04,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:04,742 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 301 transitions. [2022-02-24 00:43:04,742 INFO L471 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) [2022-02-24 00:43:04,742 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 301 transitions. [2022-02-24 00:43:04,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-24 00:43:04,742 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:04,742 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-24 00:43:04,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 00:43:04,743 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:04,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:04,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1481099262, now seen corresponding path program 1 times [2022-02-24 00:43:04,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:04,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712921173] [2022-02-24 00:43:04,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:04,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:04,827 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:43:04,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:04,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712921173] [2022-02-24 00:43:04,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712921173] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:04,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:04,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:04,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226398288] [2022-02-24 00:43:04,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:04,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:04,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:04,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:04,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:04,828 INFO L87 Difference]: Start difference. First operand 197 states and 301 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:07,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:10,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:10,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:10,593 INFO L93 Difference]: Finished difference Result 409 states and 632 transitions. [2022-02-24 00:43:10,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:10,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 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 68 [2022-02-24 00:43:10,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:10,595 INFO L225 Difference]: With dead ends: 409 [2022-02-24 00:43:10,595 INFO L226 Difference]: Without dead ends: 238 [2022-02-24 00:43:10,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:10,596 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 31 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:10,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 601 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 430 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-02-24 00:43:10,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-02-24 00:43:10,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 219. [2022-02-24 00:43:10,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5514018691588785) internal successors, (332), 214 states have internal predecessors, (332), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:10,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 336 transitions. [2022-02-24 00:43:10,601 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 336 transitions. Word has length 68 [2022-02-24 00:43:10,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:10,601 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 336 transitions. [2022-02-24 00:43:10,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:10,601 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 336 transitions. [2022-02-24 00:43:10,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-24 00:43:10,602 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:10,602 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-24 00:43:10,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 00:43:10,602 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:10,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:10,602 INFO L85 PathProgramCache]: Analyzing trace with hash 544932049, now seen corresponding path program 1 times [2022-02-24 00:43:10,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:10,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755014885] [2022-02-24 00:43:10,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:10,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:10,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:43:10,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:10,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755014885] [2022-02-24 00:43:10,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755014885] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:10,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:10,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:10,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213125107] [2022-02-24 00:43:10,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:10,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:10,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:10,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:10,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:10,698 INFO L87 Difference]: Start difference. First operand 219 states and 336 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:12,338 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 [] [2022-02-24 00:43:13,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:13,759 INFO L93 Difference]: Finished difference Result 522 states and 814 transitions. [2022-02-24 00:43:13,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:13,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 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 68 [2022-02-24 00:43:13,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:13,761 INFO L225 Difference]: With dead ends: 522 [2022-02-24 00:43:13,761 INFO L226 Difference]: Without dead ends: 329 [2022-02-24 00:43:13,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:13,762 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 162 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:13,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 408 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-02-24 00:43:13,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-02-24 00:43:13,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 219. [2022-02-24 00:43:13,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5327102803738317) internal successors, (328), 214 states have internal predecessors, (328), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:13,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 332 transitions. [2022-02-24 00:43:13,767 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 332 transitions. Word has length 68 [2022-02-24 00:43:13,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:13,767 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 332 transitions. [2022-02-24 00:43:13,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:13,767 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 332 transitions. [2022-02-24 00:43:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-02-24 00:43:13,768 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:13,768 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:13,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 00:43:13,768 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:13,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:13,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1819938328, now seen corresponding path program 1 times [2022-02-24 00:43:13,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:13,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520081902] [2022-02-24 00:43:13,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:13,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:13,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:43:13,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:13,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520081902] [2022-02-24 00:43:13,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520081902] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:13,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:13,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:13,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703902255] [2022-02-24 00:43:13,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:13,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:13,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:13,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:13,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:13,860 INFO L87 Difference]: Start difference. First operand 219 states and 332 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) [2022-02-24 00:43:14,913 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 [] [2022-02-24 00:43:16,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:18,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:18,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:18,962 INFO L93 Difference]: Finished difference Result 425 states and 650 transitions. [2022-02-24 00:43:18,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:18,962 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 82 [2022-02-24 00:43:18,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:18,963 INFO L225 Difference]: With dead ends: 425 [2022-02-24 00:43:18,963 INFO L226 Difference]: Without dead ends: 232 [2022-02-24 00:43:18,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:18,964 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 20 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:18,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 636 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 418 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-24 00:43:18,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-02-24 00:43:18,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 219. [2022-02-24 00:43:18,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.52803738317757) internal successors, (327), 214 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:18,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 331 transitions. [2022-02-24 00:43:18,969 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 331 transitions. Word has length 82 [2022-02-24 00:43:18,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:18,969 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 331 transitions. [2022-02-24 00:43:18,969 INFO L471 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) [2022-02-24 00:43:18,969 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 331 transitions. [2022-02-24 00:43:18,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-02-24 00:43:18,970 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:18,970 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1] [2022-02-24 00:43:18,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 00:43:18,970 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:18,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:18,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1202823576, now seen corresponding path program 1 times [2022-02-24 00:43:18,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:18,971 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688965989] [2022-02-24 00:43:18,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:18,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:19,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:19,056 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:43:19,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:19,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688965989] [2022-02-24 00:43:19,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688965989] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:19,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:19,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:19,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063874333] [2022-02-24 00:43:19,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:19,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:19,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:19,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:19,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:19,058 INFO L87 Difference]: Start difference. First operand 219 states and 331 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) [2022-02-24 00:43:21,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:21,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:21,433 INFO L93 Difference]: Finished difference Result 430 states and 656 transitions. [2022-02-24 00:43:21,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:21,433 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 82 [2022-02-24 00:43:21,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:21,434 INFO L225 Difference]: With dead ends: 430 [2022-02-24 00:43:21,434 INFO L226 Difference]: Without dead ends: 237 [2022-02-24 00:43:21,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:21,435 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 33 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:21,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 575 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 409 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:43:21,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-02-24 00:43:21,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 219. [2022-02-24 00:43:21,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5233644859813085) internal successors, (326), 214 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:21,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 330 transitions. [2022-02-24 00:43:21,441 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 330 transitions. Word has length 82 [2022-02-24 00:43:21,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:21,442 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 330 transitions. [2022-02-24 00:43:21,442 INFO L471 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) [2022-02-24 00:43:21,442 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 330 transitions. [2022-02-24 00:43:21,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-24 00:43:21,443 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:21,443 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:21,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 00:43:21,443 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:21,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:21,444 INFO L85 PathProgramCache]: Analyzing trace with hash -660948, now seen corresponding path program 1 times [2022-02-24 00:43:21,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:21,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822023887] [2022-02-24 00:43:21,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:21,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:21,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-24 00:43:21,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:21,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822023887] [2022-02-24 00:43:21,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822023887] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:21,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:21,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 00:43:21,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271270181] [2022-02-24 00:43:21,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:21,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 00:43:21,554 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:21,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 00:43:21,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:21,555 INFO L87 Difference]: Start difference. First operand 219 states and 330 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 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) [2022-02-24 00:43:24,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:26,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:28,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:29,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:29,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:29,760 INFO L93 Difference]: Finished difference Result 421 states and 642 transitions. [2022-02-24 00:43:29,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 00:43:29,760 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 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 83 [2022-02-24 00:43:29,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:29,767 INFO L225 Difference]: With dead ends: 421 [2022-02-24 00:43:29,768 INFO L226 Difference]: Without dead ends: 228 [2022-02-24 00:43:29,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-24 00:43:29,769 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 3 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:29,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 721 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 456 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-02-24 00:43:29,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-02-24 00:43:29,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-02-24 00:43:29,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.5112107623318385) internal successors, (337), 223 states have internal predecessors, (337), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:29,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 341 transitions. [2022-02-24 00:43:29,774 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 341 transitions. Word has length 83 [2022-02-24 00:43:29,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:29,774 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 341 transitions. [2022-02-24 00:43:29,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 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) [2022-02-24 00:43:29,775 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 341 transitions. [2022-02-24 00:43:29,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-24 00:43:29,775 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:29,775 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:29,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 00:43:29,775 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:29,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:29,776 INFO L85 PathProgramCache]: Analyzing trace with hash -248960436, now seen corresponding path program 1 times [2022-02-24 00:43:29,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:29,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719256538] [2022-02-24 00:43:29,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:29,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:29,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:29,867 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:43:29,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:29,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719256538] [2022-02-24 00:43:29,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719256538] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:29,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:29,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:29,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263413405] [2022-02-24 00:43:29,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:29,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:29,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:29,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:29,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:29,869 INFO L87 Difference]: Start difference. First operand 228 states and 341 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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) [2022-02-24 00:43:33,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:34,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:35,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:35,366 INFO L93 Difference]: Finished difference Result 549 states and 836 transitions. [2022-02-24 00:43:35,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:35,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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 83 [2022-02-24 00:43:35,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:35,376 INFO L225 Difference]: With dead ends: 549 [2022-02-24 00:43:35,376 INFO L226 Difference]: Without dead ends: 347 [2022-02-24 00:43:35,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:35,377 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 165 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:35,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 408 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-02-24 00:43:35,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-02-24 00:43:35,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 228. [2022-02-24 00:43:35,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.4977578475336324) internal successors, (334), 223 states have internal predecessors, (334), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:35,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 338 transitions. [2022-02-24 00:43:35,382 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 338 transitions. Word has length 83 [2022-02-24 00:43:35,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:35,383 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 338 transitions. [2022-02-24 00:43:35,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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) [2022-02-24 00:43:35,383 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 338 transitions. [2022-02-24 00:43:35,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 00:43:35,383 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:35,383 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:35,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 00:43:35,384 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:35,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:35,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1365043283, now seen corresponding path program 1 times [2022-02-24 00:43:35,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:35,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407613752] [2022-02-24 00:43:35,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:35,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:35,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:35,465 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:43:35,465 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:35,465 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407613752] [2022-02-24 00:43:35,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407613752] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:35,465 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:35,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:35,466 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910678144] [2022-02-24 00:43:35,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:35,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:35,466 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:35,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:35,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:35,466 INFO L87 Difference]: Start difference. First operand 228 states and 338 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) [2022-02-24 00:43:36,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:38,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:40,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:41,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:41,006 INFO L93 Difference]: Finished difference Result 539 states and 817 transitions. [2022-02-24 00:43:41,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:41,007 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 84 [2022-02-24 00:43:41,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:41,008 INFO L225 Difference]: With dead ends: 539 [2022-02-24 00:43:41,008 INFO L226 Difference]: Without dead ends: 337 [2022-02-24 00:43:41,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:41,009 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 162 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:41,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 410 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-24 00:43:41,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-02-24 00:43:41,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 228. [2022-02-24 00:43:41,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.484304932735426) internal successors, (331), 223 states have internal predecessors, (331), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:41,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 335 transitions. [2022-02-24 00:43:41,014 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 335 transitions. Word has length 84 [2022-02-24 00:43:41,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:41,014 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 335 transitions. [2022-02-24 00:43:41,014 INFO L471 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) [2022-02-24 00:43:41,014 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 335 transitions. [2022-02-24 00:43:41,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-24 00:43:41,015 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:41,015 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:41,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-24 00:43:41,015 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:41,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:41,015 INFO L85 PathProgramCache]: Analyzing trace with hash 2060411777, now seen corresponding path program 1 times [2022-02-24 00:43:41,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:41,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835438223] [2022-02-24 00:43:41,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:41,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:41,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:41,110 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:43:41,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:41,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835438223] [2022-02-24 00:43:41,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835438223] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:41,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:41,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:41,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985572784] [2022-02-24 00:43:41,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:41,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:41,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:41,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:41,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:41,112 INFO L87 Difference]: Start difference. First operand 228 states and 335 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) [2022-02-24 00:43:43,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:44,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:44,808 INFO L93 Difference]: Finished difference Result 542 states and 811 transitions. [2022-02-24 00:43:44,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:44,809 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 90 [2022-02-24 00:43:44,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:44,810 INFO L225 Difference]: With dead ends: 542 [2022-02-24 00:43:44,810 INFO L226 Difference]: Without dead ends: 340 [2022-02-24 00:43:44,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:44,811 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 104 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:44,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 579 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-24 00:43:44,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-02-24 00:43:44,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 269. [2022-02-24 00:43:44,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 264 states have (on average 1.5113636363636365) internal successors, (399), 264 states have internal predecessors, (399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:44,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 403 transitions. [2022-02-24 00:43:44,816 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 403 transitions. Word has length 90 [2022-02-24 00:43:44,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:44,817 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 403 transitions. [2022-02-24 00:43:44,817 INFO L471 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) [2022-02-24 00:43:44,817 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 403 transitions. [2022-02-24 00:43:44,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-24 00:43:44,817 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:44,817 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:44,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-24 00:43:44,818 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:44,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:44,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2110482272, now seen corresponding path program 1 times [2022-02-24 00:43:44,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:44,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568690922] [2022-02-24 00:43:44,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:44,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:44,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:44,911 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:43:44,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:44,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568690922] [2022-02-24 00:43:44,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568690922] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:44,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:44,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:44,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366418815] [2022-02-24 00:43:44,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:44,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:44,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:44,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:44,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:44,912 INFO L87 Difference]: Start difference. First operand 269 states and 403 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) [2022-02-24 00:43:46,188 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 [] [2022-02-24 00:43:48,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:49,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:49,554 INFO L93 Difference]: Finished difference Result 639 states and 971 transitions. [2022-02-24 00:43:49,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:49,555 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 90 [2022-02-24 00:43:49,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:49,556 INFO L225 Difference]: With dead ends: 639 [2022-02-24 00:43:49,556 INFO L226 Difference]: Without dead ends: 396 [2022-02-24 00:43:49,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:49,557 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 135 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:49,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 412 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-24 00:43:49,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-02-24 00:43:49,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 268. [2022-02-24 00:43:49,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.5133079847908746) internal successors, (398), 263 states have internal predecessors, (398), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:49,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 402 transitions. [2022-02-24 00:43:49,563 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 402 transitions. Word has length 90 [2022-02-24 00:43:49,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:49,563 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 402 transitions. [2022-02-24 00:43:49,563 INFO L471 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) [2022-02-24 00:43:49,563 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 402 transitions. [2022-02-24 00:43:49,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-24 00:43:49,564 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:49,564 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:49,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-24 00:43:49,564 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:49,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:49,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1958297485, now seen corresponding path program 1 times [2022-02-24 00:43:49,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:49,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386846689] [2022-02-24 00:43:49,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:49,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:49,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:49,667 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:43:49,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:49,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386846689] [2022-02-24 00:43:49,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386846689] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:49,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:49,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:49,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154811799] [2022-02-24 00:43:49,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:49,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:49,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:49,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:49,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:49,668 INFO L87 Difference]: Start difference. First operand 268 states and 402 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:50,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:52,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:53,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:55,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:55,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:55,986 INFO L93 Difference]: Finished difference Result 619 states and 945 transitions. [2022-02-24 00:43:55,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:55,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-02-24 00:43:55,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:55,988 INFO L225 Difference]: With dead ends: 619 [2022-02-24 00:43:55,988 INFO L226 Difference]: Without dead ends: 377 [2022-02-24 00:43:55,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:55,988 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 134 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:55,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 438 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-02-24 00:43:55,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-02-24 00:43:55,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 291. [2022-02-24 00:43:55,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 286 states have (on average 1.548951048951049) internal successors, (443), 286 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:55,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 447 transitions. [2022-02-24 00:43:55,994 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 447 transitions. Word has length 91 [2022-02-24 00:43:55,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:55,994 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 447 transitions. [2022-02-24 00:43:55,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:55,994 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 447 transitions. [2022-02-24 00:43:55,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-02-24 00:43:55,995 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:55,995 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:55,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-24 00:43:55,995 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:55,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:55,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1677366494, now seen corresponding path program 1 times [2022-02-24 00:43:55,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:55,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144267888] [2022-02-24 00:43:55,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:55,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:56,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:56,089 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:43:56,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:56,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144267888] [2022-02-24 00:43:56,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144267888] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:56,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:56,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:56,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770405998] [2022-02-24 00:43:56,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:56,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:56,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:56,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:56,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:56,091 INFO L87 Difference]: Start difference. First operand 291 states and 447 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:58,807 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 [] [2022-02-24 00:44:00,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:01,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:01,312 INFO L93 Difference]: Finished difference Result 718 states and 1119 transitions. [2022-02-24 00:44:01,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:01,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-02-24 00:44:01,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:01,314 INFO L225 Difference]: With dead ends: 718 [2022-02-24 00:44:01,314 INFO L226 Difference]: Without dead ends: 453 [2022-02-24 00:44:01,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:01,315 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 140 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:01,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 450 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 505 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-02-24 00:44:01,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-02-24 00:44:01,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 355. [2022-02-24 00:44:01,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.562857142857143) internal successors, (547), 350 states have internal predecessors, (547), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:01,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 551 transitions. [2022-02-24 00:44:01,321 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 551 transitions. Word has length 119 [2022-02-24 00:44:01,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:01,321 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 551 transitions. [2022-02-24 00:44:01,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:01,322 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 551 transitions. [2022-02-24 00:44:01,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-24 00:44:01,322 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:01,323 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:01,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-24 00:44:01,323 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:01,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:01,323 INFO L85 PathProgramCache]: Analyzing trace with hash -493221854, now seen corresponding path program 1 times [2022-02-24 00:44:01,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:01,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373469455] [2022-02-24 00:44:01,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:01,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:01,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:01,452 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-02-24 00:44:01,452 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:01,452 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373469455] [2022-02-24 00:44:01,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373469455] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:01,452 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:01,452 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:01,452 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670628834] [2022-02-24 00:44:01,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:01,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:01,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:01,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:01,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:01,453 INFO L87 Difference]: Start difference. First operand 355 states and 551 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:06,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:06,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:06,391 INFO L93 Difference]: Finished difference Result 691 states and 1082 transitions. [2022-02-24 00:44:06,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:06,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 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 124 [2022-02-24 00:44:06,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:06,392 INFO L225 Difference]: With dead ends: 691 [2022-02-24 00:44:06,392 INFO L226 Difference]: Without dead ends: 362 [2022-02-24 00:44:06,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:06,393 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 30 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:06,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 591 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-24 00:44:06,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-02-24 00:44:06,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 355. [2022-02-24 00:44:06,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.56) internal successors, (546), 350 states have internal predecessors, (546), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:06,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 550 transitions. [2022-02-24 00:44:06,405 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 550 transitions. Word has length 124 [2022-02-24 00:44:06,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:06,405 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 550 transitions. [2022-02-24 00:44:06,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:06,405 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 550 transitions. [2022-02-24 00:44:06,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-24 00:44:06,406 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:06,406 INFO L514 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, 1, 1, 1] [2022-02-24 00:44:06,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-24 00:44:06,406 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:06,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:06,407 INFO L85 PathProgramCache]: Analyzing trace with hash 423811832, now seen corresponding path program 1 times [2022-02-24 00:44:06,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:06,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568785957] [2022-02-24 00:44:06,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:06,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:06,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:06,494 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:44:06,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:06,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568785957] [2022-02-24 00:44:06,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568785957] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:06,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:06,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:06,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683459216] [2022-02-24 00:44:06,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:06,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:06,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:06,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:06,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:06,496 INFO L87 Difference]: Start difference. First operand 355 states and 550 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:07,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:09,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:11,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:12,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:12,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:12,572 INFO L93 Difference]: Finished difference Result 784 states and 1221 transitions. [2022-02-24 00:44:12,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:12,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 125 [2022-02-24 00:44:12,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:12,587 INFO L225 Difference]: With dead ends: 784 [2022-02-24 00:44:12,588 INFO L226 Difference]: Without dead ends: 455 [2022-02-24 00:44:12,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:12,589 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 91 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:12,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 547 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-02-24 00:44:12,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-02-24 00:44:12,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 394. [2022-02-24 00:44:12,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 389 states have (on average 1.5655526992287918) internal successors, (609), 389 states have internal predecessors, (609), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:12,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 613 transitions. [2022-02-24 00:44:12,596 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 613 transitions. Word has length 125 [2022-02-24 00:44:12,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:12,596 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 613 transitions. [2022-02-24 00:44:12,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:12,596 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 613 transitions. [2022-02-24 00:44:12,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-24 00:44:12,597 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:12,597 INFO L514 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, 1, 1, 1] [2022-02-24 00:44:12,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-24 00:44:12,597 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:12,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:12,598 INFO L85 PathProgramCache]: Analyzing trace with hash 437344633, now seen corresponding path program 1 times [2022-02-24 00:44:12,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:12,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323072054] [2022-02-24 00:44:12,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:12,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:12,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:12,721 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:44:12,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:12,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323072054] [2022-02-24 00:44:12,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323072054] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:12,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:12,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:12,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096280847] [2022-02-24 00:44:12,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:12,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:12,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:12,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:12,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:12,723 INFO L87 Difference]: Start difference. First operand 394 states and 613 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:14,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:16,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:17,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:18,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:18,424 INFO L93 Difference]: Finished difference Result 888 states and 1387 transitions. [2022-02-24 00:44:18,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:18,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 125 [2022-02-24 00:44:18,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:18,426 INFO L225 Difference]: With dead ends: 888 [2022-02-24 00:44:18,426 INFO L226 Difference]: Without dead ends: 520 [2022-02-24 00:44:18,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:18,427 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 136 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:18,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 410 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-24 00:44:18,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-02-24 00:44:18,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 392. [2022-02-24 00:44:18,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.565891472868217) internal successors, (606), 387 states have internal predecessors, (606), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:18,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 610 transitions. [2022-02-24 00:44:18,434 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 610 transitions. Word has length 125 [2022-02-24 00:44:18,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:18,434 INFO L470 AbstractCegarLoop]: Abstraction has 392 states and 610 transitions. [2022-02-24 00:44:18,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:18,434 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 610 transitions. [2022-02-24 00:44:18,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-24 00:44:18,435 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:18,435 INFO L514 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, 1, 1, 1] [2022-02-24 00:44:18,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-24 00:44:18,435 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:18,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:18,435 INFO L85 PathProgramCache]: Analyzing trace with hash 295665995, now seen corresponding path program 1 times [2022-02-24 00:44:18,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:18,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585005730] [2022-02-24 00:44:18,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:18,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:18,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:18,529 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:44:18,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:18,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585005730] [2022-02-24 00:44:18,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585005730] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:18,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:18,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:18,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393734479] [2022-02-24 00:44:18,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:18,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:18,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:18,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:18,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:18,531 INFO L87 Difference]: Start difference. First operand 392 states and 610 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:19,581 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 [] [2022-02-24 00:44:20,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:22,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:24,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:24,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:24,888 INFO L93 Difference]: Finished difference Result 844 states and 1315 transitions. [2022-02-24 00:44:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:24,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 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 126 [2022-02-24 00:44:24,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:24,890 INFO L225 Difference]: With dead ends: 844 [2022-02-24 00:44:24,890 INFO L226 Difference]: Without dead ends: 478 [2022-02-24 00:44:24,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:24,891 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 135 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:24,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 410 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-02-24 00:44:24,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-02-24 00:44:24,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 392. [2022-02-24 00:44:24,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.5607235142118863) internal successors, (604), 387 states have internal predecessors, (604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:24,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 608 transitions. [2022-02-24 00:44:24,898 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 608 transitions. Word has length 126 [2022-02-24 00:44:24,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:24,899 INFO L470 AbstractCegarLoop]: Abstraction has 392 states and 608 transitions. [2022-02-24 00:44:24,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:24,899 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 608 transitions. [2022-02-24 00:44:24,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-24 00:44:24,899 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:24,900 INFO L514 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, 1, 1] [2022-02-24 00:44:24,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-24 00:44:24,900 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:24,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:24,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1786561130, now seen corresponding path program 1 times [2022-02-24 00:44:24,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:24,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373398265] [2022-02-24 00:44:24,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:24,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:25,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:25,008 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:44:25,008 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:25,008 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373398265] [2022-02-24 00:44:25,008 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373398265] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:25,008 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:25,008 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:25,008 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999865919] [2022-02-24 00:44:25,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:25,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:25,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:25,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:25,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:25,009 INFO L87 Difference]: Start difference. First operand 392 states and 608 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:27,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:29,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:31,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:32,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:32,252 INFO L93 Difference]: Finished difference Result 884 states and 1375 transitions. [2022-02-24 00:44:32,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:32,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 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 [2022-02-24 00:44:32,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:32,254 INFO L225 Difference]: With dead ends: 884 [2022-02-24 00:44:32,254 INFO L226 Difference]: Without dead ends: 518 [2022-02-24 00:44:32,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:32,255 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 128 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:32,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 411 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 495 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-02-24 00:44:32,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-02-24 00:44:32,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 435. [2022-02-24 00:44:32,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 430 states have (on average 1.5651162790697675) internal successors, (673), 430 states have internal predecessors, (673), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:32,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 677 transitions. [2022-02-24 00:44:32,263 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 677 transitions. Word has length 133 [2022-02-24 00:44:32,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:32,263 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 677 transitions. [2022-02-24 00:44:32,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:32,263 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 677 transitions. [2022-02-24 00:44:32,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-24 00:44:32,264 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:32,264 INFO L514 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, 1, 1, 1] [2022-02-24 00:44:32,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-24 00:44:32,264 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:32,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:32,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1004226087, now seen corresponding path program 1 times [2022-02-24 00:44:32,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:32,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583073521] [2022-02-24 00:44:32,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:32,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:32,367 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:44:32,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:32,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583073521] [2022-02-24 00:44:32,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583073521] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:32,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:32,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:32,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691936590] [2022-02-24 00:44:32,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:32,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:32,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:32,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:32,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:32,368 INFO L87 Difference]: Start difference. First operand 435 states and 677 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:34,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:37,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:37,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:37,526 INFO L93 Difference]: Finished difference Result 932 states and 1454 transitions. [2022-02-24 00:44:37,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:37,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 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 [2022-02-24 00:44:37,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:37,528 INFO L225 Difference]: With dead ends: 932 [2022-02-24 00:44:37,528 INFO L226 Difference]: Without dead ends: 523 [2022-02-24 00:44:37,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:37,529 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 68 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:37,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 547 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-02-24 00:44:37,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-02-24 00:44:37,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 478. [2022-02-24 00:44:37,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.5644820295983086) internal successors, (740), 473 states have internal predecessors, (740), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:37,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 744 transitions. [2022-02-24 00:44:37,537 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 744 transitions. Word has length 134 [2022-02-24 00:44:37,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:37,537 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 744 transitions. [2022-02-24 00:44:37,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:37,537 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 744 transitions. [2022-02-24 00:44:37,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-24 00:44:37,538 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:37,538 INFO L514 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, 1, 1, 1] [2022-02-24 00:44:37,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-24 00:44:37,538 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:37,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:37,539 INFO L85 PathProgramCache]: Analyzing trace with hash -2122544954, now seen corresponding path program 1 times [2022-02-24 00:44:37,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:37,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380665258] [2022-02-24 00:44:37,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:37,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:37,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:37,624 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-02-24 00:44:37,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:37,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380665258] [2022-02-24 00:44:37,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380665258] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:37,625 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:37,625 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:37,625 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453129034] [2022-02-24 00:44:37,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:37,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:37,625 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:37,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:37,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:37,626 INFO L87 Difference]: Start difference. First operand 478 states and 744 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 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) [2022-02-24 00:44:40,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:42,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:44,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:44,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:44,560 INFO L93 Difference]: Finished difference Result 977 states and 1525 transitions. [2022-02-24 00:44:44,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:44,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 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 134 [2022-02-24 00:44:44,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:44,562 INFO L225 Difference]: With dead ends: 977 [2022-02-24 00:44:44,562 INFO L226 Difference]: Without dead ends: 525 [2022-02-24 00:44:44,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:44,563 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 35 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:44,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 667 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-02-24 00:44:44,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-02-24 00:44:44,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 502. [2022-02-24 00:44:44,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5613682092555332) internal successors, (776), 497 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) [2022-02-24 00:44:44,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 780 transitions. [2022-02-24 00:44:44,571 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 780 transitions. Word has length 134 [2022-02-24 00:44:44,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:44,571 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 780 transitions. [2022-02-24 00:44:44,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 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) [2022-02-24 00:44:44,571 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 780 transitions. [2022-02-24 00:44:44,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-24 00:44:44,572 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:44,572 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:44,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-24 00:44:44,572 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:44,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:44,573 INFO L85 PathProgramCache]: Analyzing trace with hash 111454881, now seen corresponding path program 1 times [2022-02-24 00:44:44,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:44,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461055821] [2022-02-24 00:44:44,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:44,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:44,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:44,658 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-24 00:44:44,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:44,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461055821] [2022-02-24 00:44:44,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461055821] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:44,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:44,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:44,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896712005] [2022-02-24 00:44:44,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:44,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:44,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:44,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:44,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:44,660 INFO L87 Difference]: Start difference. First operand 502 states and 780 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) [2022-02-24 00:44:46,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:47,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:47,120 INFO L93 Difference]: Finished difference Result 1054 states and 1643 transitions. [2022-02-24 00:44:47,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:47,120 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 146 [2022-02-24 00:44:47,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:47,122 INFO L225 Difference]: With dead ends: 1054 [2022-02-24 00:44:47,122 INFO L226 Difference]: Without dead ends: 578 [2022-02-24 00:44:47,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:47,123 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 155 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:47,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 458 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:44:47,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2022-02-24 00:44:47,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 502. [2022-02-24 00:44:47,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5432595573440644) internal successors, (767), 497 states have internal predecessors, (767), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:47,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 771 transitions. [2022-02-24 00:44:47,133 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 771 transitions. Word has length 146 [2022-02-24 00:44:47,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:47,134 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 771 transitions. [2022-02-24 00:44:47,134 INFO L471 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) [2022-02-24 00:44:47,134 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 771 transitions. [2022-02-24 00:44:47,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-24 00:44:47,135 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:47,135 INFO L514 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:47,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-24 00:44:47,135 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:47,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:47,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1380090645, now seen corresponding path program 1 times [2022-02-24 00:44:47,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:47,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781120024] [2022-02-24 00:44:47,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:47,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:47,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:47,252 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:44:47,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:47,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781120024] [2022-02-24 00:44:47,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781120024] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:47,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:47,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:47,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914203475] [2022-02-24 00:44:47,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:47,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:47,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:47,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:47,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:47,253 INFO L87 Difference]: Start difference. First operand 502 states and 771 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 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) [2022-02-24 00:44:49,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:51,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:51,489 INFO L93 Difference]: Finished difference Result 1013 states and 1562 transitions. [2022-02-24 00:44:51,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:51,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 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 146 [2022-02-24 00:44:51,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:51,491 INFO L225 Difference]: With dead ends: 1013 [2022-02-24 00:44:51,491 INFO L226 Difference]: Without dead ends: 537 [2022-02-24 00:44:51,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:51,492 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 71 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:51,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 563 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-24 00:44:51,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-02-24 00:44:51,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 502. [2022-02-24 00:44:51,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5412474849094568) internal successors, (766), 497 states have internal predecessors, (766), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:51,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 770 transitions. [2022-02-24 00:44:51,500 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 770 transitions. Word has length 146 [2022-02-24 00:44:51,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:51,500 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 770 transitions. [2022-02-24 00:44:51,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 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) [2022-02-24 00:44:51,500 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 770 transitions. [2022-02-24 00:44:51,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-24 00:44:51,501 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:51,502 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:51,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-24 00:44:51,502 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:51,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:51,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1302552011, now seen corresponding path program 1 times [2022-02-24 00:44:51,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:51,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064914316] [2022-02-24 00:44:51,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:51,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:51,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:51,599 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:44:51,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:51,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064914316] [2022-02-24 00:44:51,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064914316] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:51,600 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:51,600 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:51,600 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828462904] [2022-02-24 00:44:51,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:51,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:51,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:51,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:51,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:51,601 INFO L87 Difference]: Start difference. First operand 502 states and 770 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:52,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:54,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:56,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:57,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:57,067 INFO L93 Difference]: Finished difference Result 1011 states and 1558 transitions. [2022-02-24 00:44:57,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:57,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 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 [2022-02-24 00:44:57,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:57,069 INFO L225 Difference]: With dead ends: 1011 [2022-02-24 00:44:57,069 INFO L226 Difference]: Without dead ends: 535 [2022-02-24 00:44:57,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:57,070 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 68 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:57,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 565 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-24 00:44:57,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-02-24 00:44:57,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 502. [2022-02-24 00:44:57,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.539235412474849) internal successors, (765), 497 states have internal predecessors, (765), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:57,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 769 transitions. [2022-02-24 00:44:57,078 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 769 transitions. Word has length 147 [2022-02-24 00:44:57,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:57,079 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 769 transitions. [2022-02-24 00:44:57,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:57,079 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 769 transitions. [2022-02-24 00:44:57,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-24 00:44:57,080 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:57,080 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1] [2022-02-24 00:44:57,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-24 00:44:57,080 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:57,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:57,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2058960563, now seen corresponding path program 1 times [2022-02-24 00:44:57,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:57,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948615784] [2022-02-24 00:44:57,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:57,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:57,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:57,184 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-24 00:44:57,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:57,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948615784] [2022-02-24 00:44:57,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948615784] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:57,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:57,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:57,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242167272] [2022-02-24 00:44:57,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:57,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:57,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:57,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:57,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:57,185 INFO L87 Difference]: Start difference. First operand 502 states and 769 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:59,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:01,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:02,505 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 [] [2022-02-24 00:45:02,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:02,951 INFO L93 Difference]: Finished difference Result 1053 states and 1620 transitions. [2022-02-24 00:45:02,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:02,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-02-24 00:45:02,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:02,953 INFO L225 Difference]: With dead ends: 1053 [2022-02-24 00:45:02,953 INFO L226 Difference]: Without dead ends: 577 [2022-02-24 00:45:02,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:02,954 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 147 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:02,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 460 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-24 00:45:02,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-02-24 00:45:02,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 502. [2022-02-24 00:45:02,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.523138832997988) internal successors, (757), 497 states have internal predecessors, (757), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:02,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 761 transitions. [2022-02-24 00:45:02,962 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 761 transitions. Word has length 148 [2022-02-24 00:45:02,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:02,962 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 761 transitions. [2022-02-24 00:45:02,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:02,962 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 761 transitions. [2022-02-24 00:45:02,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-02-24 00:45:02,963 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:02,963 INFO L514 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:02,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-24 00:45:02,964 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:02,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:02,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1663867333, now seen corresponding path program 1 times [2022-02-24 00:45:02,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:02,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719208879] [2022-02-24 00:45:02,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:02,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:03,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:03,064 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:45:03,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:03,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719208879] [2022-02-24 00:45:03,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719208879] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:03,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:03,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:03,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222154525] [2022-02-24 00:45:03,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:03,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:03,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:03,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:03,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:03,065 INFO L87 Difference]: Start difference. First operand 502 states and 761 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:05,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:07,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:08,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:08,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:08,973 INFO L93 Difference]: Finished difference Result 1096 states and 1671 transitions. [2022-02-24 00:45:08,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:08,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 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 150 [2022-02-24 00:45:08,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:08,975 INFO L225 Difference]: With dead ends: 1096 [2022-02-24 00:45:08,975 INFO L226 Difference]: Without dead ends: 620 [2022-02-24 00:45:08,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:08,976 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 136 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:08,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 460 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-02-24 00:45:08,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-02-24 00:45:08,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 530. [2022-02-24 00:45:08,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 525 states have (on average 1.5104761904761905) internal successors, (793), 525 states have internal predecessors, (793), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:08,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 797 transitions. [2022-02-24 00:45:08,984 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 797 transitions. Word has length 150 [2022-02-24 00:45:08,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:08,985 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 797 transitions. [2022-02-24 00:45:08,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:08,985 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 797 transitions. [2022-02-24 00:45:08,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-02-24 00:45:08,986 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:08,986 INFO L514 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:08,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-24 00:45:08,986 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:08,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:08,986 INFO L85 PathProgramCache]: Analyzing trace with hash 227374365, now seen corresponding path program 1 times [2022-02-24 00:45:08,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:08,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716989755] [2022-02-24 00:45:08,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:08,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:09,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:09,081 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:45:09,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:09,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716989755] [2022-02-24 00:45:09,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716989755] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:09,082 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:09,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:09,082 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169317773] [2022-02-24 00:45:09,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:09,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:09,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:09,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:09,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:09,083 INFO L87 Difference]: Start difference. First operand 530 states and 797 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:10,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:12,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:14,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:15,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:15,311 INFO L93 Difference]: Finished difference Result 1109 states and 1676 transitions. [2022-02-24 00:45:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:15,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 151 [2022-02-24 00:45:15,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:15,313 INFO L225 Difference]: With dead ends: 1109 [2022-02-24 00:45:15,313 INFO L226 Difference]: Without dead ends: 605 [2022-02-24 00:45:15,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:15,314 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 135 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:15,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 432 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 00:45:15,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-02-24 00:45:15,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 530. [2022-02-24 00:45:15,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 525 states have (on average 1.497142857142857) internal successors, (786), 525 states have internal predecessors, (786), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:15,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 790 transitions. [2022-02-24 00:45:15,324 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 790 transitions. Word has length 151 [2022-02-24 00:45:15,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:15,324 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 790 transitions. [2022-02-24 00:45:15,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:15,325 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 790 transitions. [2022-02-24 00:45:15,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-24 00:45:15,326 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:15,326 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:15,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-24 00:45:15,326 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:15,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:15,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1919200453, now seen corresponding path program 1 times [2022-02-24 00:45:15,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:15,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142134619] [2022-02-24 00:45:15,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:15,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:15,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:15,473 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-24 00:45:15,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:15,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142134619] [2022-02-24 00:45:15,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142134619] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:15,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:15,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:15,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118709257] [2022-02-24 00:45:15,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:15,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:15,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:15,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:15,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:15,474 INFO L87 Difference]: Start difference. First operand 530 states and 790 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) [2022-02-24 00:45:16,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:18,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:21,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:21,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:21,573 INFO L93 Difference]: Finished difference Result 1058 states and 1584 transitions. [2022-02-24 00:45:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:21,573 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 156 [2022-02-24 00:45:21,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:21,575 INFO L225 Difference]: With dead ends: 1058 [2022-02-24 00:45:21,575 INFO L226 Difference]: Without dead ends: 554 [2022-02-24 00:45:21,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:21,576 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 62 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:21,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 599 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 489 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-02-24 00:45:21,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-02-24 00:45:21,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 530. [2022-02-24 00:45:21,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 525 states have (on average 1.4952380952380953) internal successors, (785), 525 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) [2022-02-24 00:45:21,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 789 transitions. [2022-02-24 00:45:21,583 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 789 transitions. Word has length 156 [2022-02-24 00:45:21,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:21,584 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 789 transitions. [2022-02-24 00:45:21,584 INFO L471 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) [2022-02-24 00:45:21,584 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 789 transitions. [2022-02-24 00:45:21,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-24 00:45:21,585 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:21,585 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:21,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-24 00:45:21,585 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:21,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:21,585 INFO L85 PathProgramCache]: Analyzing trace with hash 932617764, now seen corresponding path program 1 times [2022-02-24 00:45:21,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:21,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317928995] [2022-02-24 00:45:21,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:21,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:21,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:21,705 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-24 00:45:21,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:21,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317928995] [2022-02-24 00:45:21,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317928995] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:21,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:21,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:45:21,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17291378] [2022-02-24 00:45:21,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:21,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:45:21,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:21,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:45:21,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:45:21,707 INFO L87 Difference]: Start difference. First operand 530 states and 789 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:22,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:25,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:25,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:25,987 INFO L93 Difference]: Finished difference Result 1533 states and 2301 transitions. [2022-02-24 00:45:25,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:45:25,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-02-24 00:45:25,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:25,990 INFO L225 Difference]: With dead ends: 1533 [2022-02-24 00:45:25,990 INFO L226 Difference]: Without dead ends: 1029 [2022-02-24 00:45:25,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:45:25,991 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 144 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:25,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 456 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-02-24 00:45:25,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-02-24 00:45:26,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 1027. [2022-02-24 00:45:26,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1022 states have (on average 1.4833659491193738) internal successors, (1516), 1022 states have internal predecessors, (1516), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:26,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1520 transitions. [2022-02-24 00:45:26,005 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1520 transitions. Word has length 156 [2022-02-24 00:45:26,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:26,005 INFO L470 AbstractCegarLoop]: Abstraction has 1027 states and 1520 transitions. [2022-02-24 00:45:26,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:26,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1520 transitions. [2022-02-24 00:45:26,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-24 00:45:26,007 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:26,007 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:26,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-24 00:45:26,007 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:26,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:26,008 INFO L85 PathProgramCache]: Analyzing trace with hash 2014426051, now seen corresponding path program 1 times [2022-02-24 00:45:26,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:26,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257917295] [2022-02-24 00:45:26,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:26,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:26,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:26,086 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-02-24 00:45:26,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:26,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257917295] [2022-02-24 00:45:26,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257917295] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:26,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:26,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:45:26,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900854771] [2022-02-24 00:45:26,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:26,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:45:26,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:26,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:45:26,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:45:26,087 INFO L87 Difference]: Start difference. First operand 1027 states and 1520 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:27,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:30,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:30,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:30,537 INFO L93 Difference]: Finished difference Result 2055 states and 3047 transitions. [2022-02-24 00:45:30,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:45:30,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-02-24 00:45:30,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:30,540 INFO L225 Difference]: With dead ends: 2055 [2022-02-24 00:45:30,540 INFO L226 Difference]: Without dead ends: 1054 [2022-02-24 00:45:30,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:45:30,543 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:30,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 439 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 293 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-02-24 00:45:30,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2022-02-24 00:45:30,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1054. [2022-02-24 00:45:30,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1049 states have (on average 1.478551000953289) internal successors, (1551), 1049 states have internal predecessors, (1551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:30,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1555 transitions. [2022-02-24 00:45:30,559 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1555 transitions. Word has length 156 [2022-02-24 00:45:30,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:30,559 INFO L470 AbstractCegarLoop]: Abstraction has 1054 states and 1555 transitions. [2022-02-24 00:45:30,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:30,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1555 transitions. [2022-02-24 00:45:30,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-24 00:45:30,563 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:30,563 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:30,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-24 00:45:30,564 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:30,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:30,564 INFO L85 PathProgramCache]: Analyzing trace with hash 204522466, now seen corresponding path program 1 times [2022-02-24 00:45:30,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:30,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363211821] [2022-02-24 00:45:30,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:30,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:30,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:30,658 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-02-24 00:45:30,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:30,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363211821] [2022-02-24 00:45:30,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363211821] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:30,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:30,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:45:30,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583943730] [2022-02-24 00:45:30,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:30,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:45:30,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:30,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:45:30,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:45:30,660 INFO L87 Difference]: Start difference. First operand 1054 states and 1555 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 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) [2022-02-24 00:45:32,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:34,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:35,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:35,302 INFO L93 Difference]: Finished difference Result 2084 states and 3083 transitions. [2022-02-24 00:45:35,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:45:35,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 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 156 [2022-02-24 00:45:35,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:35,305 INFO L225 Difference]: With dead ends: 2084 [2022-02-24 00:45:35,305 INFO L226 Difference]: Without dead ends: 1056 [2022-02-24 00:45:35,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:45:35,306 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:35,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 418 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-02-24 00:45:35,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2022-02-24 00:45:35,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1056. [2022-02-24 00:45:35,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1051 states have (on average 1.477640342530923) internal successors, (1553), 1051 states have internal predecessors, (1553), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:35,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1557 transitions. [2022-02-24 00:45:35,321 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1557 transitions. Word has length 156 [2022-02-24 00:45:35,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:35,321 INFO L470 AbstractCegarLoop]: Abstraction has 1056 states and 1557 transitions. [2022-02-24 00:45:35,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 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) [2022-02-24 00:45:35,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1557 transitions. [2022-02-24 00:45:35,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-02-24 00:45:35,323 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:35,323 INFO L514 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:35,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-24 00:45:35,323 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:35,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:35,324 INFO L85 PathProgramCache]: Analyzing trace with hash -212926458, now seen corresponding path program 1 times [2022-02-24 00:45:35,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:35,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405400757] [2022-02-24 00:45:35,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:35,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:35,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:35,414 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-24 00:45:35,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:35,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405400757] [2022-02-24 00:45:35,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405400757] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:35,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:35,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:35,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866363516] [2022-02-24 00:45:35,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:35,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:35,415 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:35,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:35,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:35,415 INFO L87 Difference]: Start difference. First operand 1056 states and 1557 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:38,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:40,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:41,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:41,061 INFO L93 Difference]: Finished difference Result 2132 states and 3144 transitions. [2022-02-24 00:45:41,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:41,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 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 158 [2022-02-24 00:45:41,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:41,064 INFO L225 Difference]: With dead ends: 2132 [2022-02-24 00:45:41,064 INFO L226 Difference]: Without dead ends: 1104 [2022-02-24 00:45:41,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:41,066 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 50 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:41,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 603 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 00:45:41,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-02-24 00:45:41,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1056. [2022-02-24 00:45:41,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1051 states have (on average 1.4757373929590867) internal successors, (1551), 1051 states have internal predecessors, (1551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:41,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1555 transitions. [2022-02-24 00:45:41,080 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1555 transitions. Word has length 158 [2022-02-24 00:45:41,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:41,080 INFO L470 AbstractCegarLoop]: Abstraction has 1056 states and 1555 transitions. [2022-02-24 00:45:41,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:41,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1555 transitions. [2022-02-24 00:45:41,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-02-24 00:45:41,082 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:41,082 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:41,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-24 00:45:41,082 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:41,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:41,083 INFO L85 PathProgramCache]: Analyzing trace with hash -879309571, now seen corresponding path program 1 times [2022-02-24 00:45:41,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:41,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082931152] [2022-02-24 00:45:41,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:41,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:41,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:41,170 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-24 00:45:41,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:41,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082931152] [2022-02-24 00:45:41,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082931152] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:41,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:41,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:45:41,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630501917] [2022-02-24 00:45:41,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:41,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:45:41,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:41,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:45:41,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:45:41,172 INFO L87 Difference]: Start difference. First operand 1056 states and 1555 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:43,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:45,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:45,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:45,924 INFO L93 Difference]: Finished difference Result 2583 states and 3830 transitions. [2022-02-24 00:45:45,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:45:45,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-02-24 00:45:45,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:45,928 INFO L225 Difference]: With dead ends: 2583 [2022-02-24 00:45:45,928 INFO L226 Difference]: Without dead ends: 1555 [2022-02-24 00:45:45,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:45:45,930 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 149 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 22 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:45,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 596 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 487 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2022-02-24 00:45:45,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2022-02-24 00:45:45,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1548. [2022-02-24 00:45:45,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1543 states have (on average 1.475048606610499) internal successors, (2276), 1543 states have internal predecessors, (2276), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:45,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 2280 transitions. [2022-02-24 00:45:45,951 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 2280 transitions. Word has length 158 [2022-02-24 00:45:45,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:45,951 INFO L470 AbstractCegarLoop]: Abstraction has 1548 states and 2280 transitions. [2022-02-24 00:45:45,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:45,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 2280 transitions. [2022-02-24 00:45:45,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-02-24 00:45:45,954 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:45,954 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:45,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-24 00:45:45,954 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:45,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:45,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1161711826, now seen corresponding path program 1 times [2022-02-24 00:45:45,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:45,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690759075] [2022-02-24 00:45:45,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:45,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:46,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:46,061 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-24 00:45:46,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:46,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690759075] [2022-02-24 00:45:46,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690759075] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:46,061 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:46,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:46,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402175824] [2022-02-24 00:45:46,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:46,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:46,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:46,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:46,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:46,063 INFO L87 Difference]: Start difference. First operand 1548 states and 2280 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:48,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:48,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:48,486 INFO L93 Difference]: Finished difference Result 3131 states and 4608 transitions. [2022-02-24 00:45:48,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:48,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 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 159 [2022-02-24 00:45:48,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:48,491 INFO L225 Difference]: With dead ends: 3131 [2022-02-24 00:45:48,491 INFO L226 Difference]: Without dead ends: 1611 [2022-02-24 00:45:48,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:48,493 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 45 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:48,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 603 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:45:48,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-02-24 00:45:48,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1548. [2022-02-24 00:45:48,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1543 states have (on average 1.4731043421905379) internal successors, (2273), 1543 states have internal predecessors, (2273), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:48,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 2277 transitions. [2022-02-24 00:45:48,515 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 2277 transitions. Word has length 159 [2022-02-24 00:45:48,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:48,515 INFO L470 AbstractCegarLoop]: Abstraction has 1548 states and 2277 transitions. [2022-02-24 00:45:48,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:48,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 2277 transitions. [2022-02-24 00:45:48,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-02-24 00:45:48,517 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:48,517 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:48,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-24 00:45:48,517 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:48,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:48,518 INFO L85 PathProgramCache]: Analyzing trace with hash -364993837, now seen corresponding path program 1 times [2022-02-24 00:45:48,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:48,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738525218] [2022-02-24 00:45:48,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:48,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:48,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-02-24 00:45:48,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:48,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738525218] [2022-02-24 00:45:48,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738525218] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:48,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:48,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:48,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285896215] [2022-02-24 00:45:48,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:48,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:48,630 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:48,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:48,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:48,630 INFO L87 Difference]: Start difference. First operand 1548 states and 2277 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) [2022-02-24 00:45:50,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:52,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:54,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:55,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:55,058 INFO L93 Difference]: Finished difference Result 3188 states and 4693 transitions. [2022-02-24 00:45:55,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:55,058 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 159 [2022-02-24 00:45:55,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:55,062 INFO L225 Difference]: With dead ends: 3188 [2022-02-24 00:45:55,062 INFO L226 Difference]: Without dead ends: 1668 [2022-02-24 00:45:55,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:55,065 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 30 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:55,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 655 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-02-24 00:45:55,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2022-02-24 00:45:55,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1626. [2022-02-24 00:45:55,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1621 states have (on average 1.472547809993831) internal successors, (2387), 1621 states have internal predecessors, (2387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:55,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2391 transitions. [2022-02-24 00:45:55,087 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2391 transitions. Word has length 159 [2022-02-24 00:45:55,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:55,087 INFO L470 AbstractCegarLoop]: Abstraction has 1626 states and 2391 transitions. [2022-02-24 00:45:55,087 INFO L471 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) [2022-02-24 00:45:55,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2391 transitions. [2022-02-24 00:45:55,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-02-24 00:45:55,089 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:55,089 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:55,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-24 00:45:55,090 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:55,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:55,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1942483546, now seen corresponding path program 1 times [2022-02-24 00:45:55,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:55,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358432535] [2022-02-24 00:45:55,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:55,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:55,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:55,180 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-24 00:45:55,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:55,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358432535] [2022-02-24 00:45:55,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358432535] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:55,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:55,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:55,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354245219] [2022-02-24 00:45:55,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:55,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:55,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:55,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:55,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:55,182 INFO L87 Difference]: Start difference. First operand 1626 states and 2391 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:57,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:59,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:00,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:00,164 INFO L93 Difference]: Finished difference Result 3435 states and 5038 transitions. [2022-02-24 00:46:00,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:00,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 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 165 [2022-02-24 00:46:00,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:00,169 INFO L225 Difference]: With dead ends: 3435 [2022-02-24 00:46:00,169 INFO L226 Difference]: Without dead ends: 1837 [2022-02-24 00:46:00,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:46:00,171 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 137 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:00,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 436 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-02-24 00:46:00,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2022-02-24 00:46:00,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1626. [2022-02-24 00:46:00,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1621 states have (on average 1.4577421344848858) internal successors, (2363), 1621 states have internal predecessors, (2363), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:00,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2367 transitions. [2022-02-24 00:46:00,194 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2367 transitions. Word has length 165 [2022-02-24 00:46:00,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:00,194 INFO L470 AbstractCegarLoop]: Abstraction has 1626 states and 2367 transitions. [2022-02-24 00:46:00,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:00,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2367 transitions. [2022-02-24 00:46:00,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-02-24 00:46:00,196 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:00,196 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:00,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-24 00:46:00,196 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:00,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:00,197 INFO L85 PathProgramCache]: Analyzing trace with hash -544777350, now seen corresponding path program 1 times [2022-02-24 00:46:00,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:00,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646050280] [2022-02-24 00:46:00,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:00,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:00,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:00,291 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-24 00:46:00,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:00,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646050280] [2022-02-24 00:46:00,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646050280] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:00,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:00,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:00,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789955821] [2022-02-24 00:46:00,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:00,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:00,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:00,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:00,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:00,292 INFO L87 Difference]: Start difference. First operand 1626 states and 2367 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:02,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:04,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:04,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:04,623 INFO L93 Difference]: Finished difference Result 3281 states and 4773 transitions. [2022-02-24 00:46:04,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:04,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-02-24 00:46:04,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:04,628 INFO L225 Difference]: With dead ends: 3281 [2022-02-24 00:46:04,628 INFO L226 Difference]: Without dead ends: 1683 [2022-02-24 00:46:04,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:46:04,630 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 51 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:04,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 609 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-02-24 00:46:04,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2022-02-24 00:46:04,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1626. [2022-02-24 00:46:04,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1621 states have (on average 1.4558914250462678) internal successors, (2360), 1621 states have internal predecessors, (2360), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:04,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2364 transitions. [2022-02-24 00:46:04,676 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2364 transitions. Word has length 166 [2022-02-24 00:46:04,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:04,676 INFO L470 AbstractCegarLoop]: Abstraction has 1626 states and 2364 transitions. [2022-02-24 00:46:04,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:04,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2364 transitions. [2022-02-24 00:46:04,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-02-24 00:46:04,678 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:04,678 INFO L514 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:04,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-24 00:46:04,678 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:04,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:04,678 INFO L85 PathProgramCache]: Analyzing trace with hash -214165331, now seen corresponding path program 1 times [2022-02-24 00:46:04,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:04,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313549216] [2022-02-24 00:46:04,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:04,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:04,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:04,775 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-24 00:46:04,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:04,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313549216] [2022-02-24 00:46:04,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313549216] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:04,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:04,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:04,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966472670] [2022-02-24 00:46:04,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:04,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:04,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:04,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:04,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:04,777 INFO L87 Difference]: Start difference. First operand 1626 states and 2364 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:06,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:07,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:07,225 INFO L93 Difference]: Finished difference Result 3564 states and 5179 transitions. [2022-02-24 00:46:07,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:07,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 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 169 [2022-02-24 00:46:07,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:07,229 INFO L225 Difference]: With dead ends: 3564 [2022-02-24 00:46:07,229 INFO L226 Difference]: Without dead ends: 1966 [2022-02-24 00:46:07,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:46:07,231 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 130 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:07,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 432 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:46:07,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2022-02-24 00:46:07,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1725. [2022-02-24 00:46:07,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1720 states have (on average 1.4505813953488371) internal successors, (2495), 1720 states have internal predecessors, (2495), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:07,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2499 transitions. [2022-02-24 00:46:07,257 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2499 transitions. Word has length 169 [2022-02-24 00:46:07,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:07,257 INFO L470 AbstractCegarLoop]: Abstraction has 1725 states and 2499 transitions. [2022-02-24 00:46:07,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:07,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2499 transitions. [2022-02-24 00:46:07,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-02-24 00:46:07,259 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:07,259 INFO L514 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:07,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-24 00:46:07,260 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:07,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:07,260 INFO L85 PathProgramCache]: Analyzing trace with hash -497117630, now seen corresponding path program 1 times [2022-02-24 00:46:07,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:07,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917069095] [2022-02-24 00:46:07,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:07,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:07,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:07,355 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-24 00:46:07,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:07,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917069095] [2022-02-24 00:46:07,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917069095] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:07,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:07,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:07,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516105718] [2022-02-24 00:46:07,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:07,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:07,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:07,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:07,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:07,356 INFO L87 Difference]: Start difference. First operand 1725 states and 2499 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:09,646 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 [] [2022-02-24 00:46:11,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:11,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:11,845 INFO L93 Difference]: Finished difference Result 3461 states and 5014 transitions. [2022-02-24 00:46:11,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:11,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 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 170 [2022-02-24 00:46:11,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:11,848 INFO L225 Difference]: With dead ends: 3461 [2022-02-24 00:46:11,848 INFO L226 Difference]: Without dead ends: 1764 [2022-02-24 00:46:11,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:46:11,851 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 35 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:11,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 609 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-02-24 00:46:11,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2022-02-24 00:46:11,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1725. [2022-02-24 00:46:11,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1720 states have (on average 1.4488372093023256) internal successors, (2492), 1720 states have internal predecessors, (2492), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:11,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2496 transitions. [2022-02-24 00:46:11,876 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2496 transitions. Word has length 170 [2022-02-24 00:46:11,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:11,876 INFO L470 AbstractCegarLoop]: Abstraction has 1725 states and 2496 transitions. [2022-02-24 00:46:11,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:11,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2496 transitions. [2022-02-24 00:46:11,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-02-24 00:46:11,878 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:11,878 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:11,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-24 00:46:11,878 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:11,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:11,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1610206959, now seen corresponding path program 1 times [2022-02-24 00:46:11,879 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:11,879 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133434055] [2022-02-24 00:46:11,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:11,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:12,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:12,295 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-02-24 00:46:12,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:12,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133434055] [2022-02-24 00:46:12,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133434055] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:12,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:12,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-24 00:46:12,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818237335] [2022-02-24 00:46:12,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:12,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-24 00:46:12,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:12,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-24 00:46:12,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-24 00:46:12,296 INFO L87 Difference]: Start difference. First operand 1725 states and 2496 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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) [2022-02-24 00:46:16,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:18,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:20,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:20,075 INFO L93 Difference]: Finished difference Result 3443 states and 4984 transitions. [2022-02-24 00:46:20,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-24 00:46:20,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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 180 [2022-02-24 00:46:20,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:20,079 INFO L225 Difference]: With dead ends: 3443 [2022-02-24 00:46:20,079 INFO L226 Difference]: Without dead ends: 1725 [2022-02-24 00:46:20,081 INFO L932 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 [2022-02-24 00:46:20,081 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 7 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:20,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 952 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 464 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-02-24 00:46:20,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2022-02-24 00:46:20,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1725. [2022-02-24 00:46:20,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1720 states have (on average 1.4482558139534885) internal successors, (2491), 1720 states have internal predecessors, (2491), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:20,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2495 transitions. [2022-02-24 00:46:20,109 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2495 transitions. Word has length 180 [2022-02-24 00:46:20,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:20,109 INFO L470 AbstractCegarLoop]: Abstraction has 1725 states and 2495 transitions. [2022-02-24 00:46:20,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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) [2022-02-24 00:46:20,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2495 transitions. [2022-02-24 00:46:20,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-02-24 00:46:20,111 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:20,111 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:20,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-24 00:46:20,112 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:20,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:20,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2025533776, now seen corresponding path program 1 times [2022-02-24 00:46:20,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:20,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426695868] [2022-02-24 00:46:20,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:20,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:20,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:20,995 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 146 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-24 00:46:20,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:20,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426695868] [2022-02-24 00:46:20,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426695868] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:46:20,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475490898] [2022-02-24 00:46:20,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:20,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:46:20,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:46:20,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:46:20,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-24 00:46:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:21,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 152 conjunts are in the unsatisfiable core [2022-02-24 00:46:21,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:46:22,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:46:22,102 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 5362 treesize of output 788