/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.10.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 13:55:05,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 13:55:05,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 13:55:05,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 13:55:05,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 13:55:05,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 13:55:05,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 13:55:05,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 13:55:05,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 13:55:05,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 13:55:05,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 13:55:05,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 13:55:05,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 13:55:05,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 13:55:05,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 13:55:05,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 13:55:05,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 13:55:05,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 13:55:05,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 13:55:05,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 13:55:05,492 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 13:55:05,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 13:55:05,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 13:55:05,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 13:55:05,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 13:55:05,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-06 13:55:05,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 13:55:05,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 13:55:05,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 13:55:05,513 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-06 13:55:05,538 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 13:55:05,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 13:55:05,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-06 13:55:05,540 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-06 13:55:05,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-06 13:55:05,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-06 13:55:05,541 INFO L138 SettingsManager]: * Use SBE=true [2022-04-06 13:55:05,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 13:55:05,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 13:55:05,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 13:55:05,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 13:55:05,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 13:55:05,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 13:55:05,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 13:55:05,543 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 13:55:05,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 13:55:05,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 13:55:05,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 13:55:05,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 13:55:05,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 13:55:05,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 13:55:05,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-06 13:55:05,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-06 13:55:05,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 13:55:05,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-06 13:55:05,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-06 13:55:05,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-06 13:55:05,545 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-06 13:55:05,546 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 13:55:05,546 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 13:55:05,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 13:55:05,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 13:55:05,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 13:55:05,791 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 13:55:05,792 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 13:55:05,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-04-06 13:55:05,850 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae049a3ee/3980f70f7ee74f12ae9cb608e0ec5c0b/FLAG6b8872776 [2022-04-06 13:55:06,391 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 13:55:06,391 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-04-06 13:55:06,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae049a3ee/3980f70f7ee74f12ae9cb608e0ec5c0b/FLAG6b8872776 [2022-04-06 13:55:06,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae049a3ee/3980f70f7ee74f12ae9cb608e0ec5c0b [2022-04-06 13:55:06,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 13:55:06,867 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 13:55:06,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 13:55:06,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 13:55:06,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 13:55:06,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 01:55:06" (1/1) ... [2022-04-06 13:55:06,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@114efd8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:55:06, skipping insertion in model container [2022-04-06 13:55:06,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 01:55:06" (1/1) ... [2022-04-06 13:55:06,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 13:55:06,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 13:55:07,257 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.10.i.cil-1.c[73581,73594] [2022-04-06 13:55:07,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 13:55:07,278 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 13:55:07,438 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.10.i.cil-1.c[73581,73594] [2022-04-06 13:55:07,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 13:55:07,459 INFO L208 MainTranslator]: Completed translation [2022-04-06 13:55:07,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:55:07 WrapperNode [2022-04-06 13:55:07,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 13:55:07,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 13:55:07,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 13:55:07,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 13:55:07,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:55:07" (1/1) ... [2022-04-06 13:55:07,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:55:07" (1/1) ... [2022-04-06 13:55:07,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:55:07" (1/1) ... [2022-04-06 13:55:07,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:55:07" (1/1) ... [2022-04-06 13:55:07,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:55:07" (1/1) ... [2022-04-06 13:55:07,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:55:07" (1/1) ... [2022-04-06 13:55:07,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:55:07" (1/1) ... [2022-04-06 13:55:07,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 13:55:07,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 13:55:07,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 13:55:07,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 13:55:07,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:55:07" (1/1) ... [2022-04-06 13:55:07,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 13:55:07,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:55:07,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-06 13:55:07,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-06 13:55:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 13:55:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 13:55:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 13:55:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-06 13:55:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-06 13:55:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 13:55:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-06 13:55:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-06 13:55:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-06 13:55:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-06 13:55:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 13:55:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 13:55:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 13:55:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 13:55:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-06 13:55:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 13:55:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 13:55:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 13:55:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-06 13:55:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-06 13:55:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-06 13:55:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-06 13:55:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-06 13:55:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-06 13:55:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-06 13:55:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-06 13:55:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 13:55:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-06 13:55:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 13:55:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-06 13:55:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 13:55:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-06 13:55:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-06 13:55:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 13:55:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 13:55:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 13:55:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-06 13:55:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-06 13:55:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-06 13:55:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-06 13:55:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 13:55:07,821 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 13:55:07,823 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 13:55:08,973 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 13:55:09,409 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-06 13:55:09,409 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-06 13:55:09,422 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 13:55:09,430 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 13:55:09,430 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 13:55:09,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:55:09 BoogieIcfgContainer [2022-04-06 13:55:09,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 13:55:09,434 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 13:55:09,434 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 13:55:09,435 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 13:55:09,437 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:55:09" (1/1) ... [2022-04-06 13:55:09,439 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-06 13:55:09,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 01:55:09 BasicIcfg [2022-04-06 13:55:09,504 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 13:55:09,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 13:55:09,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 13:55:09,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 13:55:09,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 01:55:06" (1/4) ... [2022-04-06 13:55:09,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5421ab07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 01:55:09, skipping insertion in model container [2022-04-06 13:55:09,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:55:07" (2/4) ... [2022-04-06 13:55:09,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5421ab07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 01:55:09, skipping insertion in model container [2022-04-06 13:55:09,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:55:09" (3/4) ... [2022-04-06 13:55:09,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5421ab07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 01:55:09, skipping insertion in model container [2022-04-06 13:55:09,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 01:55:09" (4/4) ... [2022-04-06 13:55:09,511 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.10.i.cil-1.cqvasr [2022-04-06 13:55:09,516 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-06 13:55:09,516 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 13:55:09,570 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 13:55:09,577 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-06 13:55:09,578 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 13:55:09,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-06 13:55:09,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-04-06 13:55:09,618 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:09,619 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:09,619 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:09,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:09,624 INFO L85 PathProgramCache]: Analyzing trace with hash 645838238, now seen corresponding path program 1 times [2022-04-06 13:55:09,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:09,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371978326] [2022-04-06 13:55:09,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:09,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:10,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:10,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:55:10,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:10,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371978326] [2022-04-06 13:55:10,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371978326] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:10,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:10,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:10,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210535810] [2022-04-06 13:55:10,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:10,227 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:10,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:10,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:10,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:10,260 INFO L87 Difference]: Start difference. First operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 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 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:12,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:12,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:12,977 INFO L93 Difference]: Finished difference Result 330 states and 552 transitions. [2022-04-06 13:55:12,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:55:12,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-04-06 13:55:12,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:12,987 INFO L225 Difference]: With dead ends: 330 [2022-04-06 13:55:12,988 INFO L226 Difference]: Without dead ends: 168 [2022-04-06 13:55:12,990 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:55:12,993 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 34 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:12,994 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 595 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 407 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-04-06 13:55:13,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-04-06 13:55:13,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 151. [2022-04-06 13:55:13,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 146 states have (on average 1.547945205479452) internal successors, (226), 146 states have internal predecessors, (226), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:13,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 230 transitions. [2022-04-06 13:55:13,035 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 230 transitions. Word has length 49 [2022-04-06 13:55:13,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:13,036 INFO L478 AbstractCegarLoop]: Abstraction has 151 states and 230 transitions. [2022-04-06 13:55:13,036 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:13,036 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 230 transitions. [2022-04-06 13:55:13,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-04-06 13:55:13,038 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:13,039 INFO L499 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] [2022-04-06 13:55:13,039 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 13:55:13,039 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:13,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:13,040 INFO L85 PathProgramCache]: Analyzing trace with hash -371445777, now seen corresponding path program 1 times [2022-04-06 13:55:13,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:13,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058176776] [2022-04-06 13:55:13,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:13,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:13,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:13,294 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:55:13,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:13,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058176776] [2022-04-06 13:55:13,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058176776] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:13,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:13,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:13,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159126032] [2022-04-06 13:55:13,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:13,303 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:13,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:13,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:13,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:13,305 INFO L87 Difference]: Start difference. First operand 151 states and 230 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:15,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:17,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:18,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:18,468 INFO L93 Difference]: Finished difference Result 293 states and 443 transitions. [2022-04-06 13:55:18,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:55:18,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 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 62 [2022-04-06 13:55:18,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:18,470 INFO L225 Difference]: With dead ends: 293 [2022-04-06 13:55:18,470 INFO L226 Difference]: Without dead ends: 168 [2022-04-06 13:55:18,471 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:55:18,472 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 24 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:18,473 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 471 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-04-06 13:55:18,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-04-06 13:55:18,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 151. [2022-04-06 13:55:18,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 146 states have (on average 1.5410958904109588) internal successors, (225), 146 states have internal predecessors, (225), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:18,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 229 transitions. [2022-04-06 13:55:18,484 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 229 transitions. Word has length 62 [2022-04-06 13:55:18,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:18,485 INFO L478 AbstractCegarLoop]: Abstraction has 151 states and 229 transitions. [2022-04-06 13:55:18,485 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:18,485 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 229 transitions. [2022-04-06 13:55:18,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-06 13:55:18,487 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:18,487 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:18,487 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 13:55:18,488 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:18,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:18,488 INFO L85 PathProgramCache]: Analyzing trace with hash -2073571452, now seen corresponding path program 1 times [2022-04-06 13:55:18,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:18,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855642410] [2022-04-06 13:55:18,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:18,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:18,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:18,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:55:18,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:18,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855642410] [2022-04-06 13:55:18,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855642410] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:18,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:18,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:18,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027395319] [2022-04-06 13:55:18,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:18,650 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:18,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:18,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:18,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:18,651 INFO L87 Difference]: Start difference. First operand 151 states and 229 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:19,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:21,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:23,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:24,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:24,885 INFO L93 Difference]: Finished difference Result 292 states and 441 transitions. [2022-04-06 13:55:24,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:55:24,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-06 13:55:24,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:24,887 INFO L225 Difference]: With dead ends: 292 [2022-04-06 13:55:24,887 INFO L226 Difference]: Without dead ends: 167 [2022-04-06 13:55:24,888 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:55:24,889 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 28 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:24,889 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 473 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 356 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 13:55:24,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-04-06 13:55:24,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 151. [2022-04-06 13:55:24,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 146 states have (on average 1.5342465753424657) internal successors, (224), 146 states have internal predecessors, (224), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:24,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 228 transitions. [2022-04-06 13:55:24,899 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 228 transitions. Word has length 63 [2022-04-06 13:55:24,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:24,899 INFO L478 AbstractCegarLoop]: Abstraction has 151 states and 228 transitions. [2022-04-06 13:55:24,899 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:24,899 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 228 transitions. [2022-04-06 13:55:24,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-06 13:55:24,901 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:24,901 INFO L499 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] [2022-04-06 13:55:24,901 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 13:55:24,901 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:24,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:24,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1285979292, now seen corresponding path program 1 times [2022-04-06 13:55:24,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:24,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648344245] [2022-04-06 13:55:24,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:24,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:25,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:25,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:55:25,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:25,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648344245] [2022-04-06 13:55:25,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648344245] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:25,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:25,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:25,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093506171] [2022-04-06 13:55:25,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:25,052 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:25,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:25,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:25,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:25,053 INFO L87 Difference]: Start difference. First operand 151 states and 228 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:27,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:27,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:27,664 INFO L93 Difference]: Finished difference Result 392 states and 600 transitions. [2022-04-06 13:55:27,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:55:27,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-06 13:55:27,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:27,667 INFO L225 Difference]: With dead ends: 392 [2022-04-06 13:55:27,667 INFO L226 Difference]: Without dead ends: 267 [2022-04-06 13:55:27,668 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:55:27,669 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 145 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:27,669 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 330 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-04-06 13:55:27,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-04-06 13:55:27,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 163. [2022-04-06 13:55:27,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 158 states have (on average 1.5253164556962024) internal successors, (241), 158 states have internal predecessors, (241), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:27,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 245 transitions. [2022-04-06 13:55:27,679 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 245 transitions. Word has length 63 [2022-04-06 13:55:27,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:27,680 INFO L478 AbstractCegarLoop]: Abstraction has 163 states and 245 transitions. [2022-04-06 13:55:27,680 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:27,680 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 245 transitions. [2022-04-06 13:55:27,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-06 13:55:27,682 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:27,682 INFO L499 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] [2022-04-06 13:55:27,682 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 13:55:27,682 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:27,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:27,683 INFO L85 PathProgramCache]: Analyzing trace with hash 481034020, now seen corresponding path program 1 times [2022-04-06 13:55:27,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:27,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276595559] [2022-04-06 13:55:27,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:27,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:27,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:27,811 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:55:27,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:27,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276595559] [2022-04-06 13:55:27,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276595559] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:27,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:27,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:27,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715670450] [2022-04-06 13:55:27,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:27,813 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:27,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:27,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:27,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:27,814 INFO L87 Difference]: Start difference. First operand 163 states and 245 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:29,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:31,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:33,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:33,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:33,979 INFO L93 Difference]: Finished difference Result 314 states and 473 transitions. [2022-04-06 13:55:33,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:55:33,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-06 13:55:33,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:33,981 INFO L225 Difference]: With dead ends: 314 [2022-04-06 13:55:33,981 INFO L226 Difference]: Without dead ends: 177 [2022-04-06 13:55:33,982 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:55:33,983 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 20 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:33,983 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 477 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-04-06 13:55:33,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-04-06 13:55:33,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 163. [2022-04-06 13:55:33,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 158 states have (on average 1.518987341772152) internal successors, (240), 158 states have internal predecessors, (240), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:33,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 244 transitions. [2022-04-06 13:55:33,991 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 244 transitions. Word has length 63 [2022-04-06 13:55:33,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:33,991 INFO L478 AbstractCegarLoop]: Abstraction has 163 states and 244 transitions. [2022-04-06 13:55:33,992 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:33,992 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 244 transitions. [2022-04-06 13:55:33,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-06 13:55:33,993 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:33,993 INFO L499 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] [2022-04-06 13:55:33,993 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 13:55:33,993 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:33,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:33,994 INFO L85 PathProgramCache]: Analyzing trace with hash 23157764, now seen corresponding path program 1 times [2022-04-06 13:55:33,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:33,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656912292] [2022-04-06 13:55:33,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:33,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:34,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:34,111 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:55:34,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:34,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656912292] [2022-04-06 13:55:34,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656912292] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:34,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:34,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:34,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764042769] [2022-04-06 13:55:34,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:34,113 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:34,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:34,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:34,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:34,114 INFO L87 Difference]: Start difference. First operand 163 states and 244 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:36,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:36,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:36,673 INFO L93 Difference]: Finished difference Result 403 states and 614 transitions. [2022-04-06 13:55:36,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:55:36,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-06 13:55:36,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:36,675 INFO L225 Difference]: With dead ends: 403 [2022-04-06 13:55:36,676 INFO L226 Difference]: Without dead ends: 266 [2022-04-06 13:55:36,676 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:55:36,677 INFO L913 BasicCegarLoop]: 114 mSDtfsCounter, 138 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:36,677 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 332 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 13:55:36,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-04-06 13:55:36,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 169. [2022-04-06 13:55:36,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.524390243902439) internal successors, (250), 164 states have internal predecessors, (250), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:36,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 254 transitions. [2022-04-06 13:55:36,685 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 254 transitions. Word has length 63 [2022-04-06 13:55:36,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:36,685 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 254 transitions. [2022-04-06 13:55:36,685 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:36,685 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 254 transitions. [2022-04-06 13:55:36,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-06 13:55:36,686 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:36,686 INFO L499 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] [2022-04-06 13:55:36,686 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 13:55:36,687 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:36,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:36,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1832620047, now seen corresponding path program 1 times [2022-04-06 13:55:36,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:36,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179131617] [2022-04-06 13:55:36,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:36,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:36,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:36,862 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:55:36,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:36,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179131617] [2022-04-06 13:55:36,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179131617] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:36,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:36,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:36,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227296301] [2022-04-06 13:55:36,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:36,864 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:36,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:36,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:36,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:36,864 INFO L87 Difference]: Start difference. First operand 169 states and 254 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) [2022-04-06 13:55:38,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:39,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:39,294 INFO L93 Difference]: Finished difference Result 325 states and 492 transitions. [2022-04-06 13:55:39,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:55:39,294 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 [2022-04-06 13:55:39,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:39,295 INFO L225 Difference]: With dead ends: 325 [2022-04-06 13:55:39,296 INFO L226 Difference]: Without dead ends: 182 [2022-04-06 13:55:39,296 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:55:39,297 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 22 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:39,297 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 479 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:55:39,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-04-06 13:55:39,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 169. [2022-04-06 13:55:39,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5182926829268293) internal successors, (249), 164 states have internal predecessors, (249), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:39,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 253 transitions. [2022-04-06 13:55:39,303 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 253 transitions. Word has length 64 [2022-04-06 13:55:39,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:39,303 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 253 transitions. [2022-04-06 13:55:39,303 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:39,303 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 253 transitions. [2022-04-06 13:55:39,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 13:55:39,304 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:39,304 INFO L499 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] [2022-04-06 13:55:39,304 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 13:55:39,304 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:39,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:39,305 INFO L85 PathProgramCache]: Analyzing trace with hash -713470144, now seen corresponding path program 1 times [2022-04-06 13:55:39,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:39,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521080948] [2022-04-06 13:55:39,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:39,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:39,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:55:39,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:39,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521080948] [2022-04-06 13:55:39,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521080948] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:39,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:39,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:39,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536405462] [2022-04-06 13:55:39,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:39,422 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:39,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:39,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:39,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:39,423 INFO L87 Difference]: Start difference. First operand 169 states and 253 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) [2022-04-06 13:55:40,552 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 [] [2022-04-06 13:55:41,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:44,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:44,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:44,672 INFO L93 Difference]: Finished difference Result 325 states and 491 transitions. [2022-04-06 13:55:44,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:55:44,672 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 [2022-04-06 13:55:44,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:44,673 INFO L225 Difference]: With dead ends: 325 [2022-04-06 13:55:44,674 INFO L226 Difference]: Without dead ends: 182 [2022-04-06 13:55:44,674 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:55:44,675 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 20 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:44,675 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 479 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-04-06 13:55:44,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-04-06 13:55:44,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 169. [2022-04-06 13:55:44,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5121951219512195) internal successors, (248), 164 states have internal predecessors, (248), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:44,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 252 transitions. [2022-04-06 13:55:44,681 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 252 transitions. Word has length 65 [2022-04-06 13:55:44,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:44,681 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 252 transitions. [2022-04-06 13:55:44,681 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:44,681 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 252 transitions. [2022-04-06 13:55:44,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-06 13:55:44,682 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:44,682 INFO L499 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] [2022-04-06 13:55:44,682 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-06 13:55:44,683 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:44,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:44,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1587929332, now seen corresponding path program 1 times [2022-04-06 13:55:44,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:44,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144658314] [2022-04-06 13:55:44,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:44,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:44,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:44,798 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:55:44,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:44,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144658314] [2022-04-06 13:55:44,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144658314] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:44,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:44,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:44,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195991853] [2022-04-06 13:55:44,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:44,800 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:44,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:44,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:44,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:44,801 INFO L87 Difference]: Start difference. First operand 169 states and 252 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) [2022-04-06 13:55:46,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:48,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:50,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:50,066 INFO L93 Difference]: Finished difference Result 315 states and 477 transitions. [2022-04-06 13:55:50,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:55:50,067 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 [2022-04-06 13:55:50,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:50,068 INFO L225 Difference]: With dead ends: 315 [2022-04-06 13:55:50,068 INFO L226 Difference]: Without dead ends: 172 [2022-04-06 13:55:50,068 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:55:50,069 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 11 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:50,069 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 493 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-04-06 13:55:50,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-04-06 13:55:50,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2022-04-06 13:55:50,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5060975609756098) internal successors, (247), 164 states have internal predecessors, (247), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:50,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 251 transitions. [2022-04-06 13:55:50,075 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 251 transitions. Word has length 66 [2022-04-06 13:55:50,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:50,075 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 251 transitions. [2022-04-06 13:55:50,075 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:50,075 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 251 transitions. [2022-04-06 13:55:50,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-06 13:55:50,076 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:50,076 INFO L499 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] [2022-04-06 13:55:50,076 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-06 13:55:50,076 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:50,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:50,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1876070787, now seen corresponding path program 1 times [2022-04-06 13:55:50,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:50,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438936692] [2022-04-06 13:55:50,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:50,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:50,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:50,207 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:55:50,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:50,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438936692] [2022-04-06 13:55:50,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438936692] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:50,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:50,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:50,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652915073] [2022-04-06 13:55:50,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:50,208 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:50,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:50,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:50,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:50,209 INFO L87 Difference]: Start difference. First operand 169 states and 251 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) [2022-04-06 13:55:52,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:54,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:55,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:56,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:56,475 INFO L93 Difference]: Finished difference Result 428 states and 650 transitions. [2022-04-06 13:55:56,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:55:56,475 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 [2022-04-06 13:55:56,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:56,477 INFO L225 Difference]: With dead ends: 428 [2022-04-06 13:55:56,477 INFO L226 Difference]: Without dead ends: 285 [2022-04-06 13:55:56,478 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:55:56,478 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 117 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:56,478 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 334 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 13:55:56,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-04-06 13:55:56,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 209. [2022-04-06 13:55:56,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 204 states have (on average 1.5588235294117647) internal successors, (318), 204 states have internal predecessors, (318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:56,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 322 transitions. [2022-04-06 13:55:56,486 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 322 transitions. Word has length 66 [2022-04-06 13:55:56,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:56,486 INFO L478 AbstractCegarLoop]: Abstraction has 209 states and 322 transitions. [2022-04-06 13:55:56,486 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:56,486 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 322 transitions. [2022-04-06 13:55:56,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-06 13:55:56,487 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:56,487 INFO L499 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] [2022-04-06 13:55:56,487 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-06 13:55:56,488 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:56,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:56,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2000777135, now seen corresponding path program 1 times [2022-04-06 13:55:56,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:56,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181829353] [2022-04-06 13:55:56,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:56,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:56,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:56,609 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:55:56,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:56,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181829353] [2022-04-06 13:55:56,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181829353] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:56,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:56,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:56,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501865905] [2022-04-06 13:55:56,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:56,610 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:56,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:56,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:56,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:56,611 INFO L87 Difference]: Start difference. First operand 209 states and 322 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) [2022-04-06 13:55:57,724 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 [] [2022-04-06 13:55:59,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:01,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:03,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:04,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:04,017 INFO L93 Difference]: Finished difference Result 434 states and 677 transitions. [2022-04-06 13:56:04,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:04,017 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 [2022-04-06 13:56:04,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:04,019 INFO L225 Difference]: With dead ends: 434 [2022-04-06 13:56:04,019 INFO L226 Difference]: Without dead ends: 251 [2022-04-06 13:56:04,019 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:04,020 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 32 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:04,020 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 493 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 390 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-04-06 13:56:04,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-04-06 13:56:04,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 231. [2022-04-06 13:56:04,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.5663716814159292) internal successors, (354), 226 states have internal predecessors, (354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:04,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 358 transitions. [2022-04-06 13:56:04,027 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 358 transitions. Word has length 67 [2022-04-06 13:56:04,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:04,028 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 358 transitions. [2022-04-06 13:56:04,028 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:04,028 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 358 transitions. [2022-04-06 13:56:04,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-04-06 13:56:04,029 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:04,029 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-04-06 13:56:04,029 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-06 13:56:04,029 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:04,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:04,030 INFO L85 PathProgramCache]: Analyzing trace with hash 790176540, now seen corresponding path program 1 times [2022-04-06 13:56:04,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:04,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652847095] [2022-04-06 13:56:04,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:04,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:04,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:04,152 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:56:04,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:04,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652847095] [2022-04-06 13:56:04,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652847095] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:04,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:04,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:56:04,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137445683] [2022-04-06 13:56:04,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:04,153 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:04,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:04,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:04,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:56:04,154 INFO L87 Difference]: Start difference. First operand 231 states and 358 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) [2022-04-06 13:56:06,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:06,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:06,612 INFO L93 Difference]: Finished difference Result 456 states and 712 transitions. [2022-04-06 13:56:06,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:06,613 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 80 [2022-04-06 13:56:06,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:06,614 INFO L225 Difference]: With dead ends: 456 [2022-04-06 13:56:06,614 INFO L226 Difference]: Without dead ends: 251 [2022-04-06 13:56:06,615 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:06,615 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 37 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:06,616 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 493 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:56:06,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-04-06 13:56:06,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 231. [2022-04-06 13:56:06,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.5619469026548674) internal successors, (353), 226 states have internal predecessors, (353), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:06,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 357 transitions. [2022-04-06 13:56:06,622 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 357 transitions. Word has length 80 [2022-04-06 13:56:06,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:06,622 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 357 transitions. [2022-04-06 13:56:06,623 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:06,623 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 357 transitions. [2022-04-06 13:56:06,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-04-06 13:56:06,623 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:06,624 INFO L499 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] [2022-04-06 13:56:06,624 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-06 13:56:06,624 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:06,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:06,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1536312119, now seen corresponding path program 1 times [2022-04-06 13:56:06,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:06,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689423369] [2022-04-06 13:56:06,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:06,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:06,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:06,758 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 13:56:06,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:06,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689423369] [2022-04-06 13:56:06,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689423369] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:06,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:06,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:56:06,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624739013] [2022-04-06 13:56:06,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:06,759 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:06,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:06,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:06,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:56:06,759 INFO L87 Difference]: Start difference. First operand 231 states and 357 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:08,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:11,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:13,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:13,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:13,487 INFO L93 Difference]: Finished difference Result 465 states and 726 transitions. [2022-04-06 13:56:13,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:13,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 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 81 [2022-04-06 13:56:13,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:13,489 INFO L225 Difference]: With dead ends: 465 [2022-04-06 13:56:13,489 INFO L226 Difference]: Without dead ends: 260 [2022-04-06 13:56:13,490 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:13,490 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 21 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:13,490 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 564 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-04-06 13:56:13,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-04-06 13:56:13,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 247. [2022-04-06 13:56:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.56198347107438) internal successors, (378), 242 states have internal predecessors, (378), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:13,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 382 transitions. [2022-04-06 13:56:13,497 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 382 transitions. Word has length 81 [2022-04-06 13:56:13,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:13,497 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 382 transitions. [2022-04-06 13:56:13,497 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:13,497 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 382 transitions. [2022-04-06 13:56:13,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-04-06 13:56:13,498 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:13,498 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-04-06 13:56:13,498 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-06 13:56:13,499 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:13,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:13,499 INFO L85 PathProgramCache]: Analyzing trace with hash 347046185, now seen corresponding path program 1 times [2022-04-06 13:56:13,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:13,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101320977] [2022-04-06 13:56:13,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:13,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:13,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:13,631 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:56:13,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:13,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101320977] [2022-04-06 13:56:13,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101320977] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:13,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:13,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:56:13,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701028261] [2022-04-06 13:56:13,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:13,632 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:13,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:13,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:13,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:56:13,633 INFO L87 Difference]: Start difference. First operand 247 states and 382 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) [2022-04-06 13:56:16,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:17,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:17,665 INFO L93 Difference]: Finished difference Result 565 states and 882 transitions. [2022-04-06 13:56:17,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:17,666 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 81 [2022-04-06 13:56:17,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:17,668 INFO L225 Difference]: With dead ends: 565 [2022-04-06 13:56:17,668 INFO L226 Difference]: Without dead ends: 344 [2022-04-06 13:56:17,668 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:17,669 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 139 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:17,669 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 334 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-04-06 13:56:17,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-04-06 13:56:17,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 247. [2022-04-06 13:56:17,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5495867768595042) internal successors, (375), 242 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:17,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 379 transitions. [2022-04-06 13:56:17,677 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 379 transitions. Word has length 81 [2022-04-06 13:56:17,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:17,677 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 379 transitions. [2022-04-06 13:56:17,678 INFO L479 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) [2022-04-06 13:56:17,678 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 379 transitions. [2022-04-06 13:56:17,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-04-06 13:56:17,679 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:17,679 INFO L499 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] [2022-04-06 13:56:17,679 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-06 13:56:17,679 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:17,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:17,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1259335863, now seen corresponding path program 1 times [2022-04-06 13:56:17,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:17,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066721911] [2022-04-06 13:56:17,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:17,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:17,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:17,854 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-06 13:56:17,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:17,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066721911] [2022-04-06 13:56:17,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066721911] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:17,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:17,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 13:56:17,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503175016] [2022-04-06 13:56:17,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:17,855 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-06 13:56:17,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:17,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-06 13:56:17,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:17,856 INFO L87 Difference]: Start difference. First operand 247 states and 379 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 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) [2022-04-06 13:56:19,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:21,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:23,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:26,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:26,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:26,546 INFO L93 Difference]: Finished difference Result 477 states and 740 transitions. [2022-04-06 13:56:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 13:56:26,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 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 82 [2022-04-06 13:56:26,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:26,548 INFO L225 Difference]: With dead ends: 477 [2022-04-06 13:56:26,548 INFO L226 Difference]: Without dead ends: 256 [2022-04-06 13:56:26,549 INFO L912 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 [2022-04-06 13:56:26,549 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 3 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:26,550 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 617 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-04-06 13:56:26,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-04-06 13:56:26,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2022-04-06 13:56:26,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5378486055776892) internal successors, (386), 251 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:26,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 390 transitions. [2022-04-06 13:56:26,556 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 390 transitions. Word has length 82 [2022-04-06 13:56:26,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:26,556 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 390 transitions. [2022-04-06 13:56:26,556 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 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) [2022-04-06 13:56:26,557 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 390 transitions. [2022-04-06 13:56:26,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-06 13:56:26,557 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:26,557 INFO L499 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] [2022-04-06 13:56:26,558 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-06 13:56:26,558 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:26,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:26,558 INFO L85 PathProgramCache]: Analyzing trace with hash 577429668, now seen corresponding path program 1 times [2022-04-06 13:56:26,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:26,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798485157] [2022-04-06 13:56:26,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:26,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:26,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:56:26,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:26,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798485157] [2022-04-06 13:56:26,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798485157] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:26,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:26,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:56:26,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715597856] [2022-04-06 13:56:26,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:26,669 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:26,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:26,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:26,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:56:26,669 INFO L87 Difference]: Start difference. First operand 256 states and 390 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) [2022-04-06 13:56:30,750 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 [] [2022-04-06 13:56:31,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:31,138 INFO L93 Difference]: Finished difference Result 513 states and 785 transitions. [2022-04-06 13:56:31,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:31,139 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 [2022-04-06 13:56:31,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:31,140 INFO L225 Difference]: With dead ends: 513 [2022-04-06 13:56:31,140 INFO L226 Difference]: Without dead ends: 283 [2022-04-06 13:56:31,141 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:31,142 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 38 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:31,142 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 497 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-06 13:56:31,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-04-06 13:56:31,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 256. [2022-04-06 13:56:31,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5338645418326693) internal successors, (385), 251 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:31,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 389 transitions. [2022-04-06 13:56:31,149 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 389 transitions. Word has length 83 [2022-04-06 13:56:31,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:31,149 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 389 transitions. [2022-04-06 13:56:31,149 INFO L479 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) [2022-04-06 13:56:31,149 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 389 transitions. [2022-04-06 13:56:31,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-06 13:56:31,150 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:31,150 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:31,150 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-06 13:56:31,150 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:31,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:31,151 INFO L85 PathProgramCache]: Analyzing trace with hash 744830387, now seen corresponding path program 1 times [2022-04-06 13:56:31,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:31,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228721770] [2022-04-06 13:56:31,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:31,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:31,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:31,290 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:56:31,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:31,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228721770] [2022-04-06 13:56:31,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228721770] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:31,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:31,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:56:31,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182772898] [2022-04-06 13:56:31,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:31,292 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:31,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:31,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:31,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:56:31,292 INFO L87 Difference]: Start difference. First operand 256 states and 389 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) [2022-04-06 13:56:32,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:35,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:37,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:37,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:37,716 INFO L93 Difference]: Finished difference Result 592 states and 907 transitions. [2022-04-06 13:56:37,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:37,716 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 [2022-04-06 13:56:37,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:37,717 INFO L225 Difference]: With dead ends: 592 [2022-04-06 13:56:37,718 INFO L226 Difference]: Without dead ends: 362 [2022-04-06 13:56:37,718 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:37,719 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 141 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:37,719 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 334 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-04-06 13:56:37,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-04-06 13:56:37,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 256. [2022-04-06 13:56:37,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5179282868525896) internal successors, (381), 251 states have internal predecessors, (381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:37,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 385 transitions. [2022-04-06 13:56:37,727 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 385 transitions. Word has length 84 [2022-04-06 13:56:37,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:37,727 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 385 transitions. [2022-04-06 13:56:37,727 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:37,727 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 385 transitions. [2022-04-06 13:56:37,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-06 13:56:37,728 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:37,728 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:37,729 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-06 13:56:37,729 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:37,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:37,729 INFO L85 PathProgramCache]: Analyzing trace with hash 253061153, now seen corresponding path program 1 times [2022-04-06 13:56:37,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:37,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653984324] [2022-04-06 13:56:37,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:37,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:37,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:56:37,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:37,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653984324] [2022-04-06 13:56:37,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653984324] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:37,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:37,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:56:37,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642848695] [2022-04-06 13:56:37,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:37,852 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:37,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:37,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:37,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:56:37,853 INFO L87 Difference]: Start difference. First operand 256 states and 385 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:39,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:41,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:44,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:44,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:44,373 INFO L93 Difference]: Finished difference Result 503 states and 762 transitions. [2022-04-06 13:56:44,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:44,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-04-06 13:56:44,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:44,374 INFO L225 Difference]: With dead ends: 503 [2022-04-06 13:56:44,374 INFO L226 Difference]: Without dead ends: 273 [2022-04-06 13:56:44,375 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:44,375 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 33 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:44,375 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 499 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-04-06 13:56:44,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-04-06 13:56:44,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 256. [2022-04-06 13:56:44,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5139442231075697) internal successors, (380), 251 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:44,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 384 transitions. [2022-04-06 13:56:44,382 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 384 transitions. Word has length 85 [2022-04-06 13:56:44,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:44,383 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 384 transitions. [2022-04-06 13:56:44,383 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:44,383 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 384 transitions. [2022-04-06 13:56:44,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-04-06 13:56:44,384 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:44,384 INFO L499 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] [2022-04-06 13:56:44,384 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-06 13:56:44,384 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:44,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:44,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1425775569, now seen corresponding path program 1 times [2022-04-06 13:56:44,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:44,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032851290] [2022-04-06 13:56:44,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:44,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:44,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:44,482 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:56:44,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:44,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032851290] [2022-04-06 13:56:44,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032851290] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:44,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:44,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:56:44,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116963150] [2022-04-06 13:56:44,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:44,483 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:56:44,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:44,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:56:44,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:56:44,484 INFO L87 Difference]: Start difference. First operand 256 states and 384 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) [2022-04-06 13:56:46,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:46,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:46,979 INFO L93 Difference]: Finished difference Result 711 states and 1087 transitions. [2022-04-06 13:56:46,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:56:46,979 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 89 [2022-04-06 13:56:46,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:46,981 INFO L225 Difference]: With dead ends: 711 [2022-04-06 13:56:46,981 INFO L226 Difference]: Without dead ends: 481 [2022-04-06 13:56:46,982 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:56:46,983 INFO L913 BasicCegarLoop]: 337 mSDtfsCounter, 159 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:46,983 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 531 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 13:56:46,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-04-06 13:56:46,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2022-04-06 13:56:46,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.5147058823529411) internal successors, (721), 476 states have internal predecessors, (721), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:46,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 725 transitions. [2022-04-06 13:56:46,995 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 725 transitions. Word has length 89 [2022-04-06 13:56:46,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:46,995 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 725 transitions. [2022-04-06 13:56:46,995 INFO L479 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) [2022-04-06 13:56:46,995 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 725 transitions. [2022-04-06 13:56:46,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-04-06 13:56:46,996 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:46,996 INFO L499 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] [2022-04-06 13:56:46,997 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-06 13:56:46,997 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:46,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:46,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1874472208, now seen corresponding path program 1 times [2022-04-06 13:56:46,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:46,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328132417] [2022-04-06 13:56:46,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:46,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:47,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:47,178 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:56:47,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:47,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328132417] [2022-04-06 13:56:47,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328132417] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:47,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:47,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:56:47,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998035873] [2022-04-06 13:56:47,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:47,180 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:47,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:47,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:47,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:56:47,180 INFO L87 Difference]: Start difference. First operand 481 states and 725 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:49,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:51,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:52,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:52,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:52,948 INFO L93 Difference]: Finished difference Result 1144 states and 1728 transitions. [2022-04-06 13:56:52,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:52,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 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 89 [2022-04-06 13:56:52,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:52,951 INFO L225 Difference]: With dead ends: 1144 [2022-04-06 13:56:52,951 INFO L226 Difference]: Without dead ends: 689 [2022-04-06 13:56:52,952 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:52,953 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 114 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:52,953 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 352 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 13:56:52,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-04-06 13:56:52,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 525. [2022-04-06 13:56:52,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 520 states have (on average 1.551923076923077) internal successors, (807), 520 states have internal predecessors, (807), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:52,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 811 transitions. [2022-04-06 13:56:52,966 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 811 transitions. Word has length 89 [2022-04-06 13:56:52,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:52,966 INFO L478 AbstractCegarLoop]: Abstraction has 525 states and 811 transitions. [2022-04-06 13:56:52,966 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:52,966 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 811 transitions. [2022-04-06 13:56:52,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-06 13:56:52,968 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:52,969 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:52,969 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-06 13:56:52,969 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:52,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:52,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1992106647, now seen corresponding path program 1 times [2022-04-06 13:56:52,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:52,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43806464] [2022-04-06 13:56:52,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:52,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:53,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:53,101 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:56:53,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:53,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43806464] [2022-04-06 13:56:53,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43806464] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:53,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:53,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:56:53,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411309559] [2022-04-06 13:56:53,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:53,102 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:53,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:53,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:53,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:56:53,103 INFO L87 Difference]: Start difference. First operand 525 states and 811 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:55,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:57,333 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 [] [2022-04-06 13:56:58,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:58,289 INFO L93 Difference]: Finished difference Result 1229 states and 1892 transitions. [2022-04-06 13:56:58,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:58,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-04-06 13:56:58,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:58,293 INFO L225 Difference]: With dead ends: 1229 [2022-04-06 13:56:58,293 INFO L226 Difference]: Without dead ends: 730 [2022-04-06 13:56:58,294 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:58,295 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 86 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:58,295 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 497 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-04-06 13:56:58,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2022-04-06 13:56:58,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 592. [2022-04-06 13:56:58,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 587 states have (on average 1.5638841567291313) internal successors, (918), 587 states have internal predecessors, (918), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:58,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 922 transitions. [2022-04-06 13:56:58,312 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 922 transitions. Word has length 117 [2022-04-06 13:56:58,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:58,313 INFO L478 AbstractCegarLoop]: Abstraction has 592 states and 922 transitions. [2022-04-06 13:56:58,313 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:58,313 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 922 transitions. [2022-04-06 13:56:58,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-06 13:56:58,315 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:58,315 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:58,315 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-06 13:56:58,315 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:58,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:58,316 INFO L85 PathProgramCache]: Analyzing trace with hash 2056547562, now seen corresponding path program 1 times [2022-04-06 13:56:58,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:58,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169221267] [2022-04-06 13:56:58,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:58,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:58,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:58,453 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-06 13:56:58,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:58,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169221267] [2022-04-06 13:56:58,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169221267] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:58,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:58,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:56:58,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525271884] [2022-04-06 13:56:58,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:58,454 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:58,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:58,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:58,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:56:58,455 INFO L87 Difference]: Start difference. First operand 592 states and 922 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) [2022-04-06 13:57:00,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:00,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:00,966 INFO L93 Difference]: Finished difference Result 1216 states and 1896 transitions. [2022-04-06 13:57:00,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:00,967 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 117 [2022-04-06 13:57:00,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:00,969 INFO L225 Difference]: With dead ends: 1216 [2022-04-06 13:57:00,969 INFO L226 Difference]: Without dead ends: 650 [2022-04-06 13:57:00,971 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:00,972 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 36 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:00,972 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 591 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 13:57:00,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-04-06 13:57:00,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 616. [2022-04-06 13:57:00,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 611 states have (on average 1.5646481178396072) internal successors, (956), 611 states have internal predecessors, (956), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:00,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 960 transitions. [2022-04-06 13:57:00,986 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 960 transitions. Word has length 117 [2022-04-06 13:57:00,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:00,986 INFO L478 AbstractCegarLoop]: Abstraction has 616 states and 960 transitions. [2022-04-06 13:57:00,986 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:00,986 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 960 transitions. [2022-04-06 13:57:00,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-06 13:57:00,988 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:00,988 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:57:00,988 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-06 13:57:00,988 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:00,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:00,988 INFO L85 PathProgramCache]: Analyzing trace with hash 2081762659, now seen corresponding path program 1 times [2022-04-06 13:57:00,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:00,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842136318] [2022-04-06 13:57:00,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:00,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:01,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:01,128 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:57:01,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:01,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842136318] [2022-04-06 13:57:01,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842136318] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:01,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:01,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:01,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289895469] [2022-04-06 13:57:01,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:01,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:01,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:01,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:01,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:01,131 INFO L87 Difference]: Start difference. First operand 616 states and 960 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:03,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:05,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:07,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:07,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:07,840 INFO L93 Difference]: Finished difference Result 1450 states and 2248 transitions. [2022-04-06 13:57:07,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:07,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-04-06 13:57:07,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:07,843 INFO L225 Difference]: With dead ends: 1450 [2022-04-06 13:57:07,844 INFO L226 Difference]: Without dead ends: 860 [2022-04-06 13:57:07,845 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:07,845 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 116 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:07,846 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 352 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-04-06 13:57:07,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2022-04-06 13:57:07,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 690. [2022-04-06 13:57:07,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 685 states have (on average 1.5795620437956204) internal successors, (1082), 685 states have internal predecessors, (1082), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:07,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1086 transitions. [2022-04-06 13:57:07,887 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1086 transitions. Word has length 122 [2022-04-06 13:57:07,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:07,887 INFO L478 AbstractCegarLoop]: Abstraction has 690 states and 1086 transitions. [2022-04-06 13:57:07,887 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:07,887 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1086 transitions. [2022-04-06 13:57:07,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-06 13:57:07,889 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:07,889 INFO L499 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] [2022-04-06 13:57:07,889 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-06 13:57:07,889 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:07,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:07,890 INFO L85 PathProgramCache]: Analyzing trace with hash 185272698, now seen corresponding path program 1 times [2022-04-06 13:57:07,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:07,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133112668] [2022-04-06 13:57:07,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:07,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:08,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:08,005 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-04-06 13:57:08,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:08,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133112668] [2022-04-06 13:57:08,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133112668] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:08,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:08,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:57:08,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681365608] [2022-04-06 13:57:08,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:08,006 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:57:08,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:08,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:57:08,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:57:08,007 INFO L87 Difference]: Start difference. First operand 690 states and 1086 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:11,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:11,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:11,885 INFO L93 Difference]: Finished difference Result 1356 states and 2145 transitions. [2022-04-06 13:57:11,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:57:11,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-04-06 13:57:11,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:11,889 INFO L225 Difference]: With dead ends: 1356 [2022-04-06 13:57:11,889 INFO L226 Difference]: Without dead ends: 692 [2022-04-06 13:57:11,890 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:57:11,891 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:11,891 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 392 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-04-06 13:57:11,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2022-04-06 13:57:11,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 692. [2022-04-06 13:57:11,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 687 states have (on average 1.5778748180494906) internal successors, (1084), 687 states have internal predecessors, (1084), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:11,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1088 transitions. [2022-04-06 13:57:11,906 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1088 transitions. Word has length 122 [2022-04-06 13:57:11,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:11,907 INFO L478 AbstractCegarLoop]: Abstraction has 692 states and 1088 transitions. [2022-04-06 13:57:11,907 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:11,907 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1088 transitions. [2022-04-06 13:57:11,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-06 13:57:11,909 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:11,909 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:57:11,909 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-06 13:57:11,909 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:11,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:11,909 INFO L85 PathProgramCache]: Analyzing trace with hash 445754168, now seen corresponding path program 1 times [2022-04-06 13:57:11,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:11,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165713686] [2022-04-06 13:57:11,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:11,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:12,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:12,033 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:57:12,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:12,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165713686] [2022-04-06 13:57:12,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165713686] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:12,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:12,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:12,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697214521] [2022-04-06 13:57:12,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:12,034 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:12,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:12,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:12,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:12,035 INFO L87 Difference]: Start difference. First operand 692 states and 1088 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) [2022-04-06 13:57:13,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:15,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:18,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:18,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:18,732 INFO L93 Difference]: Finished difference Result 1490 states and 2325 transitions. [2022-04-06 13:57:18,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:18,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-06 13:57:18,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:18,736 INFO L225 Difference]: With dead ends: 1490 [2022-04-06 13:57:18,736 INFO L226 Difference]: Without dead ends: 826 [2022-04-06 13:57:18,737 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:18,738 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 77 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:18,738 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 497 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-04-06 13:57:18,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-04-06 13:57:18,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 704. [2022-04-06 13:57:18,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 699 states have (on average 1.5793991416309012) internal successors, (1104), 699 states have internal predecessors, (1104), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:18,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1108 transitions. [2022-04-06 13:57:18,759 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1108 transitions. Word has length 123 [2022-04-06 13:57:18,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:18,759 INFO L478 AbstractCegarLoop]: Abstraction has 704 states and 1108 transitions. [2022-04-06 13:57:18,760 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:18,760 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1108 transitions. [2022-04-06 13:57:18,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-04-06 13:57:18,761 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:18,761 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:57:18,762 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-06 13:57:18,762 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:18,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:18,762 INFO L85 PathProgramCache]: Analyzing trace with hash -653488844, now seen corresponding path program 1 times [2022-04-06 13:57:18,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:18,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938965580] [2022-04-06 13:57:18,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:18,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:18,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:18,919 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:57:18,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:18,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938965580] [2022-04-06 13:57:18,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938965580] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:18,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:18,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:18,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905484502] [2022-04-06 13:57:18,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:18,921 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:18,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:18,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:18,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:18,922 INFO L87 Difference]: Start difference. First operand 704 states and 1108 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:20,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:22,453 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 [] [2022-04-06 13:57:22,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:22,901 INFO L93 Difference]: Finished difference Result 1498 states and 2339 transitions. [2022-04-06 13:57:22,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:22,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-04-06 13:57:22,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:22,904 INFO L225 Difference]: With dead ends: 1498 [2022-04-06 13:57:22,904 INFO L226 Difference]: Without dead ends: 822 [2022-04-06 13:57:22,905 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:22,905 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 98 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:22,906 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 493 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-04-06 13:57:22,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2022-04-06 13:57:22,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 704. [2022-04-06 13:57:22,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 699 states have (on average 1.5765379113018598) internal successors, (1102), 699 states have internal predecessors, (1102), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:22,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1106 transitions. [2022-04-06 13:57:22,923 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1106 transitions. Word has length 130 [2022-04-06 13:57:22,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:22,923 INFO L478 AbstractCegarLoop]: Abstraction has 704 states and 1106 transitions. [2022-04-06 13:57:22,923 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:22,923 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1106 transitions. [2022-04-06 13:57:22,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-04-06 13:57:22,925 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:22,925 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:57:22,925 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-06 13:57:22,926 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:22,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:22,926 INFO L85 PathProgramCache]: Analyzing trace with hash 129890131, now seen corresponding path program 1 times [2022-04-06 13:57:22,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:22,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437644859] [2022-04-06 13:57:22,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:22,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:23,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:23,041 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:57:23,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:23,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437644859] [2022-04-06 13:57:23,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437644859] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:23,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:23,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:23,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047689282] [2022-04-06 13:57:23,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:23,042 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:23,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:23,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:23,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:23,043 INFO L87 Difference]: Start difference. First operand 704 states and 1106 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:25,720 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 [] [2022-04-06 13:57:27,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:28,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:29,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:29,357 INFO L93 Difference]: Finished difference Result 1412 states and 2221 transitions. [2022-04-06 13:57:29,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:29,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-04-06 13:57:29,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:29,366 INFO L225 Difference]: With dead ends: 1412 [2022-04-06 13:57:29,366 INFO L226 Difference]: Without dead ends: 736 [2022-04-06 13:57:29,368 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:29,368 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 43 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:29,369 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 591 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 452 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 13:57:29,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-04-06 13:57:29,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 704. [2022-04-06 13:57:29,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 699 states have (on average 1.5751072961373391) internal successors, (1101), 699 states have internal predecessors, (1101), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:29,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1105 transitions. [2022-04-06 13:57:29,402 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1105 transitions. Word has length 130 [2022-04-06 13:57:29,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:29,403 INFO L478 AbstractCegarLoop]: Abstraction has 704 states and 1105 transitions. [2022-04-06 13:57:29,404 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:29,404 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1105 transitions. [2022-04-06 13:57:29,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-06 13:57:29,405 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:29,406 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:57:29,406 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-06 13:57:29,406 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:29,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:29,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1621563087, now seen corresponding path program 1 times [2022-04-06 13:57:29,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:29,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815415709] [2022-04-06 13:57:29,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:29,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:29,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:29,526 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:57:29,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:29,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815415709] [2022-04-06 13:57:29,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815415709] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:29,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:29,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:29,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827906339] [2022-04-06 13:57:29,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:29,528 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:29,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:29,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:29,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:29,528 INFO L87 Difference]: Start difference. First operand 704 states and 1105 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) [2022-04-06 13:57:31,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:33,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:35,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:36,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:36,717 INFO L93 Difference]: Finished difference Result 1624 states and 2534 transitions. [2022-04-06 13:57:36,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:36,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-06 13:57:36,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:36,720 INFO L225 Difference]: With dead ends: 1624 [2022-04-06 13:57:36,720 INFO L226 Difference]: Without dead ends: 948 [2022-04-06 13:57:36,721 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:36,722 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 109 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:36,722 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 347 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 477 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-04-06 13:57:36,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2022-04-06 13:57:36,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 790. [2022-04-06 13:57:36,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 785 states have (on average 1.5885350318471338) internal successors, (1247), 785 states have internal predecessors, (1247), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:36,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1251 transitions. [2022-04-06 13:57:36,739 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1251 transitions. Word has length 131 [2022-04-06 13:57:36,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:36,739 INFO L478 AbstractCegarLoop]: Abstraction has 790 states and 1251 transitions. [2022-04-06 13:57:36,740 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:36,740 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1251 transitions. [2022-04-06 13:57:36,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-06 13:57:36,741 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:36,742 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:57:36,742 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-06 13:57:36,742 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:36,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:36,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1699130074, now seen corresponding path program 1 times [2022-04-06 13:57:36,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:36,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787583649] [2022-04-06 13:57:36,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:36,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:36,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:36,860 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:57:36,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:36,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787583649] [2022-04-06 13:57:36,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787583649] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:36,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:36,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:36,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205374517] [2022-04-06 13:57:36,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:36,861 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:36,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:36,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:36,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:36,862 INFO L87 Difference]: Start difference. First operand 790 states and 1251 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) [2022-04-06 13:57:38,215 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 [] [2022-04-06 13:57:39,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:41,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:41,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:41,608 INFO L93 Difference]: Finished difference Result 1716 states and 2690 transitions. [2022-04-06 13:57:41,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:41,608 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 132 [2022-04-06 13:57:41,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:41,611 INFO L225 Difference]: With dead ends: 1716 [2022-04-06 13:57:41,611 INFO L226 Difference]: Without dead ends: 950 [2022-04-06 13:57:41,612 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:41,613 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 110 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:41,613 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 362 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 13:57:41,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2022-04-06 13:57:41,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 794. [2022-04-06 13:57:41,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.58808618504436) internal successors, (1253), 789 states have internal predecessors, (1253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:41,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1257 transitions. [2022-04-06 13:57:41,630 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1257 transitions. Word has length 132 [2022-04-06 13:57:41,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:41,631 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1257 transitions. [2022-04-06 13:57:41,631 INFO L479 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) [2022-04-06 13:57:41,631 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1257 transitions. [2022-04-06 13:57:41,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-06 13:57:41,633 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:41,633 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-04-06 13:57:41,633 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-06 13:57:41,633 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:41,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:41,634 INFO L85 PathProgramCache]: Analyzing trace with hash 2112101086, now seen corresponding path program 1 times [2022-04-06 13:57:41,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:41,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118210942] [2022-04-06 13:57:41,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:41,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:41,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:41,751 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:57:41,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:41,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118210942] [2022-04-06 13:57:41,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118210942] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:41,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:41,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:41,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294991491] [2022-04-06 13:57:41,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:41,752 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:41,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:41,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:41,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:41,753 INFO L87 Difference]: Start difference. First operand 794 states and 1257 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:43,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:45,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:46,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:48,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:48,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:48,764 INFO L93 Difference]: Finished difference Result 1666 states and 2619 transitions. [2022-04-06 13:57:48,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:48,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 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 [2022-04-06 13:57:48,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:48,767 INFO L225 Difference]: With dead ends: 1666 [2022-04-06 13:57:48,767 INFO L226 Difference]: Without dead ends: 900 [2022-04-06 13:57:48,768 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:48,769 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 91 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:48,769 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 497 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 512 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-04-06 13:57:48,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2022-04-06 13:57:48,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 794. [2022-04-06 13:57:48,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.585551330798479) internal successors, (1251), 789 states have internal predecessors, (1251), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1255 transitions. [2022-04-06 13:57:48,786 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1255 transitions. Word has length 133 [2022-04-06 13:57:48,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:48,786 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1255 transitions. [2022-04-06 13:57:48,786 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:48,787 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1255 transitions. [2022-04-06 13:57:48,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-06 13:57:48,788 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:48,788 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-04-06 13:57:48,789 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-06 13:57:48,789 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:48,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:48,789 INFO L85 PathProgramCache]: Analyzing trace with hash 902858847, now seen corresponding path program 1 times [2022-04-06 13:57:48,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:48,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136772376] [2022-04-06 13:57:48,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:48,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:48,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:48,941 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:57:48,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:48,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136772376] [2022-04-06 13:57:48,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136772376] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:48,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:48,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:48,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968896068] [2022-04-06 13:57:48,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:48,942 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:48,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:48,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:48,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:48,943 INFO L87 Difference]: Start difference. First operand 794 states and 1255 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:50,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:52,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:54,210 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 [] [2022-04-06 13:57:54,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:54,652 INFO L93 Difference]: Finished difference Result 1716 states and 2684 transitions. [2022-04-06 13:57:54,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:54,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 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 [2022-04-06 13:57:54,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:54,655 INFO L225 Difference]: With dead ends: 1716 [2022-04-06 13:57:54,655 INFO L226 Difference]: Without dead ends: 950 [2022-04-06 13:57:54,656 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:54,656 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 138 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:54,656 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 366 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 13:57:54,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2022-04-06 13:57:54,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 794. [2022-04-06 13:57:54,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.5716096324461344) internal successors, (1240), 789 states have internal predecessors, (1240), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:54,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1244 transitions. [2022-04-06 13:57:54,674 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1244 transitions. Word has length 133 [2022-04-06 13:57:54,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:54,674 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1244 transitions. [2022-04-06 13:57:54,674 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:54,674 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1244 transitions. [2022-04-06 13:57:54,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-04-06 13:57:54,676 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:54,676 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2022-04-06 13:57:54,677 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-06 13:57:54,677 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:54,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:54,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1575731045, now seen corresponding path program 1 times [2022-04-06 13:57:54,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:54,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885999240] [2022-04-06 13:57:54,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:54,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:54,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:54,795 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:57:54,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:54,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885999240] [2022-04-06 13:57:54,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885999240] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:54,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:54,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:54,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400821716] [2022-04-06 13:57:54,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:54,796 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:54,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:54,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:54,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:54,796 INFO L87 Difference]: Start difference. First operand 794 states and 1244 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:55,944 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 [] [2022-04-06 13:57:58,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:00,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:00,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:00,569 INFO L93 Difference]: Finished difference Result 1646 states and 2567 transitions. [2022-04-06 13:58:00,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:00,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-04-06 13:58:00,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:00,571 INFO L225 Difference]: With dead ends: 1646 [2022-04-06 13:58:00,571 INFO L226 Difference]: Without dead ends: 880 [2022-04-06 13:58:00,572 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:00,573 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 87 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:00,573 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 493 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 13:58:00,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2022-04-06 13:58:00,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 794. [2022-04-06 13:58:00,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.5690747782002534) internal successors, (1238), 789 states have internal predecessors, (1238), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:00,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1242 transitions. [2022-04-06 13:58:00,590 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1242 transitions. Word has length 135 [2022-04-06 13:58:00,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:00,590 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1242 transitions. [2022-04-06 13:58:00,590 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:00,591 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1242 transitions. [2022-04-06 13:58:00,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-04-06 13:58:00,592 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:00,592 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2022-04-06 13:58:00,593 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-06 13:58:00,593 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:00,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:00,593 INFO L85 PathProgramCache]: Analyzing trace with hash 278614492, now seen corresponding path program 1 times [2022-04-06 13:58:00,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:00,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438095348] [2022-04-06 13:58:00,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:00,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:00,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:00,719 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:58:00,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:00,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438095348] [2022-04-06 13:58:00,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438095348] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:00,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:00,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:00,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116877854] [2022-04-06 13:58:00,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:00,720 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:00,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:00,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:00,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:00,721 INFO L87 Difference]: Start difference. First operand 794 states and 1242 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:02,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:04,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:05,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:05,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:05,713 INFO L93 Difference]: Finished difference Result 1696 states and 2632 transitions. [2022-04-06 13:58:05,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:05,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-04-06 13:58:05,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:05,716 INFO L225 Difference]: With dead ends: 1696 [2022-04-06 13:58:05,716 INFO L226 Difference]: Without dead ends: 930 [2022-04-06 13:58:05,717 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:05,718 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 134 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:05,718 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 368 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-04-06 13:58:05,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2022-04-06 13:58:05,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 794. [2022-04-06 13:58:05,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.5551330798479088) internal successors, (1227), 789 states have internal predecessors, (1227), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:05,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1231 transitions. [2022-04-06 13:58:05,736 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1231 transitions. Word has length 135 [2022-04-06 13:58:05,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:05,736 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1231 transitions. [2022-04-06 13:58:05,736 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:05,736 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1231 transitions. [2022-04-06 13:58:05,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-06 13:58:05,738 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:05,738 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:05,738 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-06 13:58:05,738 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:05,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:05,739 INFO L85 PathProgramCache]: Analyzing trace with hash 173200331, now seen corresponding path program 1 times [2022-04-06 13:58:05,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:05,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926040448] [2022-04-06 13:58:05,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:05,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:05,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:05,854 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:58:05,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:05,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926040448] [2022-04-06 13:58:05,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926040448] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:05,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:05,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:05,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146646739] [2022-04-06 13:58:05,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:05,855 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:05,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:05,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:05,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:05,856 INFO L87 Difference]: Start difference. First operand 794 states and 1231 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:07,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:08,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:08,317 INFO L93 Difference]: Finished difference Result 1646 states and 2541 transitions. [2022-04-06 13:58:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:08,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-04-06 13:58:08,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:08,319 INFO L225 Difference]: With dead ends: 1646 [2022-04-06 13:58:08,319 INFO L226 Difference]: Without dead ends: 880 [2022-04-06 13:58:08,320 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:08,320 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 77 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:08,320 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 505 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:58:08,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2022-04-06 13:58:08,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 794. [2022-04-06 13:58:08,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.5525982256020279) internal successors, (1225), 789 states have internal predecessors, (1225), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:08,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1229 transitions. [2022-04-06 13:58:08,336 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1229 transitions. Word has length 139 [2022-04-06 13:58:08,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:08,336 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1229 transitions. [2022-04-06 13:58:08,336 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:08,336 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1229 transitions. [2022-04-06 13:58:08,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-06 13:58:08,338 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:08,338 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:08,338 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-06 13:58:08,339 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:08,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:08,339 INFO L85 PathProgramCache]: Analyzing trace with hash -797090676, now seen corresponding path program 1 times [2022-04-06 13:58:08,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:08,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128152805] [2022-04-06 13:58:08,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:08,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:08,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:08,476 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-06 13:58:08,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:08,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128152805] [2022-04-06 13:58:08,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128152805] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:08,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:08,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:08,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469005548] [2022-04-06 13:58:08,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:08,477 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:08,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:08,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:08,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:08,478 INFO L87 Difference]: Start difference. First operand 794 states and 1229 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:11,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:12,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:13,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:13,190 INFO L93 Difference]: Finished difference Result 1660 states and 2567 transitions. [2022-04-06 13:58:13,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:13,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-04-06 13:58:13,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:13,193 INFO L225 Difference]: With dead ends: 1660 [2022-04-06 13:58:13,193 INFO L226 Difference]: Without dead ends: 894 [2022-04-06 13:58:13,194 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:13,194 INFO L913 BasicCegarLoop]: 240 mSDtfsCounter, 36 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:13,195 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 589 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 13:58:13,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-04-06 13:58:13,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 846. [2022-04-06 13:58:13,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 841 states have (on average 1.5517241379310345) internal successors, (1305), 841 states have internal predecessors, (1305), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:13,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1309 transitions. [2022-04-06 13:58:13,212 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1309 transitions. Word has length 139 [2022-04-06 13:58:13,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:13,213 INFO L478 AbstractCegarLoop]: Abstraction has 846 states and 1309 transitions. [2022-04-06 13:58:13,213 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:13,213 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1309 transitions. [2022-04-06 13:58:13,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-04-06 13:58:13,215 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:13,215 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:13,215 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-06 13:58:13,215 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:13,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:13,215 INFO L85 PathProgramCache]: Analyzing trace with hash 571689233, now seen corresponding path program 1 times [2022-04-06 13:58:13,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:13,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493806197] [2022-04-06 13:58:13,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:13,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:13,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:13,336 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:58:13,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:13,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493806197] [2022-04-06 13:58:13,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493806197] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:13,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:13,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:13,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914848072] [2022-04-06 13:58:13,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:13,337 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:13,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:13,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:13,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:13,338 INFO L87 Difference]: Start difference. First operand 846 states and 1309 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:15,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:16,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:18,418 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 [] [2022-04-06 13:58:18,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:18,900 INFO L93 Difference]: Finished difference Result 1884 states and 2904 transitions. [2022-04-06 13:58:18,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:18,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 142 [2022-04-06 13:58:18,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:18,903 INFO L225 Difference]: With dead ends: 1884 [2022-04-06 13:58:18,903 INFO L226 Difference]: Without dead ends: 1066 [2022-04-06 13:58:18,904 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:18,904 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 120 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:18,904 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 368 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-06 13:58:18,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2022-04-06 13:58:18,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 902. [2022-04-06 13:58:18,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 897 states have (on average 1.544035674470457) internal successors, (1385), 897 states have internal predecessors, (1385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:18,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1389 transitions. [2022-04-06 13:58:18,920 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1389 transitions. Word has length 142 [2022-04-06 13:58:18,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:18,921 INFO L478 AbstractCegarLoop]: Abstraction has 902 states and 1389 transitions. [2022-04-06 13:58:18,921 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:18,921 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1389 transitions. [2022-04-06 13:58:18,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-04-06 13:58:18,923 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:18,923 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:18,923 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-06 13:58:18,923 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:18,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:18,923 INFO L85 PathProgramCache]: Analyzing trace with hash -2124952577, now seen corresponding path program 1 times [2022-04-06 13:58:18,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:18,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729823121] [2022-04-06 13:58:18,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:18,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:19,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:19,037 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:58:19,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:19,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729823121] [2022-04-06 13:58:19,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729823121] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:19,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:19,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:19,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793272323] [2022-04-06 13:58:19,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:19,038 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:19,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:19,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:19,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:19,039 INFO L87 Difference]: Start difference. First operand 902 states and 1389 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:21,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:21,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:21,517 INFO L93 Difference]: Finished difference Result 1846 states and 2831 transitions. [2022-04-06 13:58:21,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:21,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-04-06 13:58:21,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:21,520 INFO L225 Difference]: With dead ends: 1846 [2022-04-06 13:58:21,520 INFO L226 Difference]: Without dead ends: 972 [2022-04-06 13:58:21,522 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:21,522 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 61 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:21,522 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 523 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:58:21,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2022-04-06 13:58:21,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 902. [2022-04-06 13:58:21,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 897 states have (on average 1.5418060200668897) internal successors, (1383), 897 states have internal predecessors, (1383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:21,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1387 transitions. [2022-04-06 13:58:21,543 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1387 transitions. Word has length 143 [2022-04-06 13:58:21,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:21,543 INFO L478 AbstractCegarLoop]: Abstraction has 902 states and 1387 transitions. [2022-04-06 13:58:21,543 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:21,544 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1387 transitions. [2022-04-06 13:58:21,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-06 13:58:21,545 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:21,545 INFO L499 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] [2022-04-06 13:58:21,546 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-06 13:58:21,546 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:21,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:21,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1680520422, now seen corresponding path program 1 times [2022-04-06 13:58:21,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:21,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549927270] [2022-04-06 13:58:21,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:21,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:21,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:21,679 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-06 13:58:21,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:21,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549927270] [2022-04-06 13:58:21,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549927270] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:21,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:21,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:21,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744267247] [2022-04-06 13:58:21,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:21,680 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:21,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:21,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:21,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:21,681 INFO L87 Difference]: Start difference. First operand 902 states and 1387 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:24,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:26,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:27,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:27,118 INFO L93 Difference]: Finished difference Result 1826 states and 2803 transitions. [2022-04-06 13:58:27,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:27,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-06 13:58:27,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:27,122 INFO L225 Difference]: With dead ends: 1826 [2022-04-06 13:58:27,122 INFO L226 Difference]: Without dead ends: 952 [2022-04-06 13:58:27,124 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:27,124 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 72 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:27,124 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 509 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 465 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-04-06 13:58:27,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-04-06 13:58:27,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 902. [2022-04-06 13:58:27,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 897 states have (on average 1.5395763656633221) internal successors, (1381), 897 states have internal predecessors, (1381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:27,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1385 transitions. [2022-04-06 13:58:27,145 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1385 transitions. Word has length 144 [2022-04-06 13:58:27,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:27,145 INFO L478 AbstractCegarLoop]: Abstraction has 902 states and 1385 transitions. [2022-04-06 13:58:27,145 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:27,145 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1385 transitions. [2022-04-06 13:58:27,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-06 13:58:27,147 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:27,147 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:27,147 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-06 13:58:27,147 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:27,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:27,148 INFO L85 PathProgramCache]: Analyzing trace with hash 780500646, now seen corresponding path program 1 times [2022-04-06 13:58:27,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:27,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643833360] [2022-04-06 13:58:27,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:27,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:27,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:27,267 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:58:27,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:27,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643833360] [2022-04-06 13:58:27,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643833360] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:27,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:27,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:27,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783586234] [2022-04-06 13:58:27,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:27,269 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:27,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:27,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:27,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:27,269 INFO L87 Difference]: Start difference. First operand 902 states and 1385 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:29,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:30,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:32,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:33,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:33,412 INFO L93 Difference]: Finished difference Result 1996 states and 3054 transitions. [2022-04-06 13:58:33,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:33,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-06 13:58:33,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:33,416 INFO L225 Difference]: With dead ends: 1996 [2022-04-06 13:58:33,416 INFO L226 Difference]: Without dead ends: 1122 [2022-04-06 13:58:33,417 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:33,418 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 118 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:33,418 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 368 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-04-06 13:58:33,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-04-06 13:58:33,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 962. [2022-04-06 13:58:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.5329153605015673) internal successors, (1467), 957 states have internal predecessors, (1467), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:33,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1471 transitions. [2022-04-06 13:58:33,435 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1471 transitions. Word has length 144 [2022-04-06 13:58:33,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:33,435 INFO L478 AbstractCegarLoop]: Abstraction has 962 states and 1471 transitions. [2022-04-06 13:58:33,435 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:33,435 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1471 transitions. [2022-04-06 13:58:33,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-06 13:58:33,437 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:33,437 INFO L499 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] [2022-04-06 13:58:33,437 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-06 13:58:33,438 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:33,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:33,438 INFO L85 PathProgramCache]: Analyzing trace with hash 2086081273, now seen corresponding path program 1 times [2022-04-06 13:58:33,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:33,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860487791] [2022-04-06 13:58:33,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:33,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:33,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:33,555 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-06 13:58:33,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:33,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860487791] [2022-04-06 13:58:33,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860487791] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:33,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:33,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:33,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825944738] [2022-04-06 13:58:33,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:33,556 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:33,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:33,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:33,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:33,557 INFO L87 Difference]: Start difference. First operand 962 states and 1471 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:36,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:38,606 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 [] [2022-04-06 13:58:39,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:39,011 INFO L93 Difference]: Finished difference Result 1532 states and 2335 transitions. [2022-04-06 13:58:39,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:39,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-06 13:58:39,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:39,014 INFO L225 Difference]: With dead ends: 1532 [2022-04-06 13:58:39,014 INFO L226 Difference]: Without dead ends: 598 [2022-04-06 13:58:39,015 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:39,015 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 131 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:39,016 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 370 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-04-06 13:58:39,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-04-06 13:58:39,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 537. [2022-04-06 13:58:39,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.4981203007518797) internal successors, (797), 532 states have internal predecessors, (797), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:39,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 801 transitions. [2022-04-06 13:58:39,025 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 801 transitions. Word has length 144 [2022-04-06 13:58:39,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:39,026 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 801 transitions. [2022-04-06 13:58:39,026 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:39,026 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 801 transitions. [2022-04-06 13:58:39,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-06 13:58:39,027 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:39,027 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-04-06 13:58:39,027 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-06 13:58:39,027 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:39,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:39,028 INFO L85 PathProgramCache]: Analyzing trace with hash 2040378645, now seen corresponding path program 1 times [2022-04-06 13:58:39,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:39,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282508956] [2022-04-06 13:58:39,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:39,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:39,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:39,146 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:58:39,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:39,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282508956] [2022-04-06 13:58:39,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282508956] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:39,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:39,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:39,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490077063] [2022-04-06 13:58:39,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:39,147 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:39,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:39,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:39,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:39,147 INFO L87 Difference]: Start difference. First operand 537 states and 801 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) [2022-04-06 13:58:41,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:41,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:41,594 INFO L93 Difference]: Finished difference Result 1107 states and 1654 transitions. [2022-04-06 13:58:41,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:41,594 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 145 [2022-04-06 13:58:41,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:41,596 INFO L225 Difference]: With dead ends: 1107 [2022-04-06 13:58:41,596 INFO L226 Difference]: Without dead ends: 598 [2022-04-06 13:58:41,596 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:41,597 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 115 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:41,597 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 376 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:58:41,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-04-06 13:58:41,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 537. [2022-04-06 13:58:41,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.4849624060150375) internal successors, (790), 532 states have internal predecessors, (790), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:41,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 794 transitions. [2022-04-06 13:58:41,608 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 794 transitions. Word has length 145 [2022-04-06 13:58:41,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:41,608 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 794 transitions. [2022-04-06 13:58:41,608 INFO L479 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) [2022-04-06 13:58:41,608 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 794 transitions. [2022-04-06 13:58:41,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-06 13:58:41,609 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:41,610 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:41,610 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-06 13:58:41,610 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:41,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:41,610 INFO L85 PathProgramCache]: Analyzing trace with hash -390187374, now seen corresponding path program 1 times [2022-04-06 13:58:41,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:41,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199454113] [2022-04-06 13:58:41,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:41,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:41,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:41,726 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:58:41,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:41,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199454113] [2022-04-06 13:58:41,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199454113] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:41,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:41,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:41,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290516066] [2022-04-06 13:58:41,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:41,727 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:41,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:41,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:41,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:41,728 INFO L87 Difference]: Start difference. First operand 537 states and 794 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) [2022-04-06 13:58:44,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:46,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:46,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:46,870 INFO L93 Difference]: Finished difference Result 1107 states and 1640 transitions. [2022-04-06 13:58:46,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:46,870 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 145 [2022-04-06 13:58:46,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:46,872 INFO L225 Difference]: With dead ends: 1107 [2022-04-06 13:58:46,872 INFO L226 Difference]: Without dead ends: 598 [2022-04-06 13:58:46,873 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:46,873 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 110 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:46,873 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 370 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-04-06 13:58:46,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-04-06 13:58:46,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 537. [2022-04-06 13:58:46,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.4755639097744362) internal successors, (785), 532 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) [2022-04-06 13:58:46,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 789 transitions. [2022-04-06 13:58:46,883 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 789 transitions. Word has length 145 [2022-04-06 13:58:46,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:46,883 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 789 transitions. [2022-04-06 13:58:46,883 INFO L479 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) [2022-04-06 13:58:46,883 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 789 transitions. [2022-04-06 13:58:46,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-06 13:58:46,884 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:46,884 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-04-06 13:58:46,884 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-06 13:58:46,885 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:46,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:46,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1500160743, now seen corresponding path program 1 times [2022-04-06 13:58:46,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:46,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464850333] [2022-04-06 13:58:46,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:46,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:47,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:47,037 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:58:47,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:47,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464850333] [2022-04-06 13:58:47,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464850333] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:47,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:47,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:47,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466936005] [2022-04-06 13:58:47,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:47,039 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:47,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:47,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:47,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:47,040 INFO L87 Difference]: Start difference. First operand 537 states and 789 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) [2022-04-06 13:58:48,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:50,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:52,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:52,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:52,869 INFO L93 Difference]: Finished difference Result 1107 states and 1630 transitions. [2022-04-06 13:58:52,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:52,869 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 [2022-04-06 13:58:52,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:52,871 INFO L225 Difference]: With dead ends: 1107 [2022-04-06 13:58:52,871 INFO L226 Difference]: Without dead ends: 598 [2022-04-06 13:58:52,872 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:52,873 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 113 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:52,873 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 370 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 13:58:52,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-04-06 13:58:52,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 537. [2022-04-06 13:58:52,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.462406015037594) internal successors, (778), 532 states have internal predecessors, (778), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:52,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 782 transitions. [2022-04-06 13:58:52,884 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 782 transitions. Word has length 146 [2022-04-06 13:58:52,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:52,884 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 782 transitions. [2022-04-06 13:58:52,884 INFO L479 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) [2022-04-06 13:58:52,884 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 782 transitions. [2022-04-06 13:58:52,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-06 13:58:52,886 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:52,886 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:52,886 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-06 13:58:52,886 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:52,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:52,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1615062166, now seen corresponding path program 1 times [2022-04-06 13:58:52,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:52,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759404552] [2022-04-06 13:58:52,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:52,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:52,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:52,999 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:58:52,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:52,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759404552] [2022-04-06 13:58:52,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759404552] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:52,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:52,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:52,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779626146] [2022-04-06 13:58:52,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:53,000 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:53,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:53,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:53,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:53,000 INFO L87 Difference]: Start difference. First operand 537 states and 782 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:54,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:56,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:58,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:58,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:58,688 INFO L93 Difference]: Finished difference Result 1069 states and 1561 transitions. [2022-04-06 13:58:58,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:58,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-06 13:58:58,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:58,691 INFO L225 Difference]: With dead ends: 1069 [2022-04-06 13:58:58,691 INFO L226 Difference]: Without dead ends: 560 [2022-04-06 13:58:58,692 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:58,692 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 43 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:58,693 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 519 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 13:58:58,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-04-06 13:58:58,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 537. [2022-04-06 13:58:58,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.4605263157894737) internal successors, (777), 532 states have internal predecessors, (777), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:58,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 781 transitions. [2022-04-06 13:58:58,701 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 781 transitions. Word has length 148 [2022-04-06 13:58:58,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:58,701 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 781 transitions. [2022-04-06 13:58:58,702 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:58,702 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 781 transitions. [2022-04-06 13:58:58,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-06 13:58:58,702 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:58,703 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:58,703 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-06 13:58:58,703 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:58,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:58,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1128973103, now seen corresponding path program 1 times [2022-04-06 13:58:58,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:58,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613873448] [2022-04-06 13:58:58,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:58,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:58,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:58,863 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:58:58,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:58,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613873448] [2022-04-06 13:58:58,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613873448] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:58,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:58,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:58,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296469211] [2022-04-06 13:58:58,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:58,865 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:58,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:58,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:58,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:58,865 INFO L87 Difference]: Start difference. First operand 537 states and 781 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) [2022-04-06 13:59:00,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:02,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:05,117 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 [] [2022-04-06 13:59:05,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:05,483 INFO L93 Difference]: Finished difference Result 1065 states and 1554 transitions. [2022-04-06 13:59:05,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:05,483 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 149 [2022-04-06 13:59:05,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:05,485 INFO L225 Difference]: With dead ends: 1065 [2022-04-06 13:59:05,485 INFO L226 Difference]: Without dead ends: 556 [2022-04-06 13:59:05,486 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:59:05,486 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 38 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:05,487 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 523 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-04-06 13:59:05,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-04-06 13:59:05,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 537. [2022-04-06 13:59:05,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.4586466165413534) internal successors, (776), 532 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) [2022-04-06 13:59:05,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 780 transitions. [2022-04-06 13:59:05,497 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 780 transitions. Word has length 149 [2022-04-06 13:59:05,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:05,498 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 780 transitions. [2022-04-06 13:59:05,498 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:05,498 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 780 transitions. [2022-04-06 13:59:05,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-06 13:59:05,499 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:05,499 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:05,499 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-06 13:59:05,499 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:05,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:05,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1559975034, now seen corresponding path program 1 times [2022-04-06 13:59:05,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:05,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718333668] [2022-04-06 13:59:05,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:05,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:05,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:05,613 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:59:05,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:05,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718333668] [2022-04-06 13:59:05,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718333668] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:05,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:05,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:59:05,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076945606] [2022-04-06 13:59:05,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:05,614 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:59:05,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:05,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:59:05,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:59:05,615 INFO L87 Difference]: Start difference. First operand 537 states and 780 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) [2022-04-06 13:59:06,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:09,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:10,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:10,201 INFO L93 Difference]: Finished difference Result 1149 states and 1675 transitions. [2022-04-06 13:59:10,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:10,201 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 149 [2022-04-06 13:59:10,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:10,202 INFO L225 Difference]: With dead ends: 1149 [2022-04-06 13:59:10,203 INFO L226 Difference]: Without dead ends: 640 [2022-04-06 13:59:10,203 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:59:10,204 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 104 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:10,204 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 370 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 13:59:10,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2022-04-06 13:59:10,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 572. [2022-04-06 13:59:10,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 567 states have (on average 1.4532627865961198) internal successors, (824), 567 states have internal predecessors, (824), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:10,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 828 transitions. [2022-04-06 13:59:10,215 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 828 transitions. Word has length 149 [2022-04-06 13:59:10,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:10,215 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 828 transitions. [2022-04-06 13:59:10,215 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:10,216 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 828 transitions. [2022-04-06 13:59:10,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-04-06 13:59:10,217 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:10,217 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:10,217 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-06 13:59:10,217 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:10,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:10,217 INFO L85 PathProgramCache]: Analyzing trace with hash -933634450, now seen corresponding path program 1 times [2022-04-06 13:59:10,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:10,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412223313] [2022-04-06 13:59:10,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:10,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:10,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:10,339 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:59:10,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:10,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412223313] [2022-04-06 13:59:10,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412223313] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:10,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:10,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:59:10,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898465403] [2022-04-06 13:59:10,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:10,340 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:59:10,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:10,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:59:10,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:59:10,341 INFO L87 Difference]: Start difference. First operand 572 states and 828 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) [2022-04-06 13:59:11,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:13,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:15,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:15,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:15,987 INFO L93 Difference]: Finished difference Result 1133 states and 1646 transitions. [2022-04-06 13:59:15,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:15,987 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 [2022-04-06 13:59:15,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:15,989 INFO L225 Difference]: With dead ends: 1133 [2022-04-06 13:59:15,989 INFO L226 Difference]: Without dead ends: 589 [2022-04-06 13:59:15,990 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:59:15,990 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 33 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:15,990 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 525 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 13:59:15,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2022-04-06 13:59:15,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 572. [2022-04-06 13:59:15,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 567 states have (on average 1.4514991181657848) internal successors, (823), 567 states have internal predecessors, (823), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:15,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 827 transitions. [2022-04-06 13:59:15,998 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 827 transitions. Word has length 150 [2022-04-06 13:59:15,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:15,998 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 827 transitions. [2022-04-06 13:59:15,998 INFO L479 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) [2022-04-06 13:59:15,998 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 827 transitions. [2022-04-06 13:59:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-04-06 13:59:15,999 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:15,999 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:15,999 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-06 13:59:16,000 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:16,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:16,000 INFO L85 PathProgramCache]: Analyzing trace with hash -2006253839, now seen corresponding path program 1 times [2022-04-06 13:59:16,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:16,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566058747] [2022-04-06 13:59:16,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:16,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:16,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-04-06 13:59:16,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:16,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566058747] [2022-04-06 13:59:16,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566058747] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:16,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:16,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:59:16,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012239146] [2022-04-06 13:59:16,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:16,112 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:59:16,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:16,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:59:16,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:59:16,112 INFO L87 Difference]: Start difference. First operand 572 states and 827 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) [2022-04-06 13:59:18,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:20,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:22,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:23,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:23,256 INFO L93 Difference]: Finished difference Result 1130 states and 1641 transitions. [2022-04-06 13:59:23,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:23,257 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 152 [2022-04-06 13:59:23,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:23,258 INFO L225 Difference]: With dead ends: 1130 [2022-04-06 13:59:23,258 INFO L226 Difference]: Without dead ends: 586 [2022-04-06 13:59:23,259 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:59:23,259 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 38 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:23,259 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 569 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 426 Invalid, 3 Unknown, 0 Unchecked, 7.1s Time] [2022-04-06 13:59:23,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-04-06 13:59:23,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 572. [2022-04-06 13:59:23,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 567 states have (on average 1.4497354497354498) internal successors, (822), 567 states have internal predecessors, (822), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:23,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 826 transitions. [2022-04-06 13:59:23,281 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 826 transitions. Word has length 152 [2022-04-06 13:59:23,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:23,281 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 826 transitions. [2022-04-06 13:59:23,281 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:23,281 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 826 transitions. [2022-04-06 13:59:23,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-04-06 13:59:23,282 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:23,282 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:23,282 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-06 13:59:23,282 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:23,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:23,283 INFO L85 PathProgramCache]: Analyzing trace with hash -548960133, now seen corresponding path program 1 times [2022-04-06 13:59:23,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:23,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559802424] [2022-04-06 13:59:23,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:23,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:23,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:23,404 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 13:59:23,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:23,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559802424] [2022-04-06 13:59:23,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559802424] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:23,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:23,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:59:23,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361779129] [2022-04-06 13:59:23,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:23,405 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:59:23,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:23,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:59:23,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:59:23,405 INFO L87 Difference]: Start difference. First operand 572 states and 826 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:25,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:25,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:25,808 INFO L93 Difference]: Finished difference Result 1151 states and 1667 transitions. [2022-04-06 13:59:25,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:25,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-04-06 13:59:25,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:25,809 INFO L225 Difference]: With dead ends: 1151 [2022-04-06 13:59:25,809 INFO L226 Difference]: Without dead ends: 607 [2022-04-06 13:59:25,810 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:59:25,810 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 65 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:25,811 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 544 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:59:25,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-04-06 13:59:25,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 572. [2022-04-06 13:59:25,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 567 states have (on average 1.4479717813051147) internal successors, (821), 567 states have internal predecessors, (821), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:25,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 825 transitions. [2022-04-06 13:59:25,820 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 825 transitions. Word has length 158 [2022-04-06 13:59:25,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:25,820 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 825 transitions. [2022-04-06 13:59:25,820 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:25,820 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 825 transitions. [2022-04-06 13:59:25,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-04-06 13:59:25,821 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:25,821 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:25,821 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-06 13:59:25,821 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:25,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:25,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1599750346, now seen corresponding path program 1 times [2022-04-06 13:59:25,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:25,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652274472] [2022-04-06 13:59:25,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:25,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:25,934 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 13:59:25,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:25,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652274472] [2022-04-06 13:59:25,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652274472] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:25,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:25,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:59:25,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667169976] [2022-04-06 13:59:25,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:25,935 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:59:25,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:25,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:59:25,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:59:25,936 INFO L87 Difference]: Start difference. First operand 572 states and 825 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:27,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:28,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:28,357 INFO L93 Difference]: Finished difference Result 1149 states and 1663 transitions. [2022-04-06 13:59:28,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:28,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-04-06 13:59:28,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:28,358 INFO L225 Difference]: With dead ends: 1149 [2022-04-06 13:59:28,358 INFO L226 Difference]: Without dead ends: 605 [2022-04-06 13:59:28,359 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:59:28,359 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 57 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:28,360 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 546 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:59:28,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-04-06 13:59:28,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 572. [2022-04-06 13:59:28,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 567 states have (on average 1.4462081128747795) internal successors, (820), 567 states have internal predecessors, (820), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:28,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 824 transitions. [2022-04-06 13:59:28,370 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 824 transitions. Word has length 164 [2022-04-06 13:59:28,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:28,371 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 824 transitions. [2022-04-06 13:59:28,371 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:28,371 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 824 transitions. [2022-04-06 13:59:28,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-04-06 13:59:28,372 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:28,372 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:28,372 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-04-06 13:59:28,372 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:28,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:28,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1310716344, now seen corresponding path program 1 times [2022-04-06 13:59:28,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:28,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886501293] [2022-04-06 13:59:28,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:28,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:28,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:28,493 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-06 13:59:28,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:28,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886501293] [2022-04-06 13:59:28,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886501293] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:28,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:28,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:59:28,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102351595] [2022-04-06 13:59:28,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:28,494 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:59:28,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:28,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:59:28,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:59:28,494 INFO L87 Difference]: Start difference. First operand 572 states and 824 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) [2022-04-06 13:59:30,295 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 [] [2022-04-06 13:59:31,389 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:32,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:33,862 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 [] [2022-04-06 13:59:34,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:34,282 INFO L93 Difference]: Finished difference Result 1255 states and 1817 transitions. [2022-04-06 13:59:34,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:34,282 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 167 [2022-04-06 13:59:34,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:34,284 INFO L225 Difference]: With dead ends: 1255 [2022-04-06 13:59:34,284 INFO L226 Difference]: Without dead ends: 711 [2022-04-06 13:59:34,285 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:59:34,285 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 106 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:34,285 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 382 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 13:59:34,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-04-06 13:59:34,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 636. [2022-04-06 13:59:34,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 631 states have (on average 1.4421553090332806) internal successors, (910), 631 states have internal predecessors, (910), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:34,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 914 transitions. [2022-04-06 13:59:34,298 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 914 transitions. Word has length 167 [2022-04-06 13:59:34,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:34,299 INFO L478 AbstractCegarLoop]: Abstraction has 636 states and 914 transitions. [2022-04-06 13:59:34,299 INFO L479 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) [2022-04-06 13:59:34,299 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 914 transitions. [2022-04-06 13:59:34,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-04-06 13:59:34,300 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:34,300 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:34,300 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-06 13:59:34,300 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:34,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:34,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1892544354, now seen corresponding path program 1 times [2022-04-06 13:59:34,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:34,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885321240] [2022-04-06 13:59:34,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:34,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:34,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-04-06 13:59:34,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:34,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885321240] [2022-04-06 13:59:34,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885321240] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:34,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:34,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:59:34,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656793661] [2022-04-06 13:59:34,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:34,439 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:59:34,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:34,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:59:34,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:59:34,439 INFO L87 Difference]: Start difference. First operand 636 states and 914 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:35,579 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 [] [2022-04-06 13:59:37,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:38,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:38,908 INFO L93 Difference]: Finished difference Result 1303 states and 1878 transitions. [2022-04-06 13:59:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:38,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-04-06 13:59:38,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:38,909 INFO L225 Difference]: With dead ends: 1303 [2022-04-06 13:59:38,909 INFO L226 Difference]: Without dead ends: 695 [2022-04-06 13:59:38,910 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:59:38,911 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 122 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:38,911 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 354 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-04-06 13:59:38,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2022-04-06 13:59:38,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 636. [2022-04-06 13:59:38,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 631 states have (on average 1.427892234548336) internal successors, (901), 631 states have internal predecessors, (901), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:38,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 905 transitions. [2022-04-06 13:59:38,924 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 905 transitions. Word has length 171 [2022-04-06 13:59:38,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:38,924 INFO L478 AbstractCegarLoop]: Abstraction has 636 states and 905 transitions. [2022-04-06 13:59:38,925 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:38,925 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 905 transitions. [2022-04-06 13:59:38,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-04-06 13:59:38,925 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:38,926 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:38,926 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-04-06 13:59:38,926 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:38,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:38,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1055786399, now seen corresponding path program 1 times [2022-04-06 13:59:38,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:38,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600095793] [2022-04-06 13:59:38,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:38,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:39,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:39,052 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-04-06 13:59:39,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:39,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600095793] [2022-04-06 13:59:39,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600095793] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:39,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:39,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:59:39,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785488890] [2022-04-06 13:59:39,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:39,054 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:59:39,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:39,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:59:39,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:39,054 INFO L87 Difference]: Start difference. First operand 636 states and 905 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 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) [2022-04-06 13:59:41,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:41,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:41,511 INFO L93 Difference]: Finished difference Result 1818 states and 2608 transitions. [2022-04-06 13:59:41,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:59:41,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 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 172 [2022-04-06 13:59:41,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:41,514 INFO L225 Difference]: With dead ends: 1818 [2022-04-06 13:59:41,514 INFO L226 Difference]: Without dead ends: 1210 [2022-04-06 13:59:41,515 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:41,515 INFO L913 BasicCegarLoop]: 372 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:41,515 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 566 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:59:41,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2022-04-06 13:59:41,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1210. [2022-04-06 13:59:41,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1205 states have (on average 1.4307053941908714) internal successors, (1724), 1205 states have internal predecessors, (1724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:41,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1728 transitions. [2022-04-06 13:59:41,551 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1728 transitions. Word has length 172 [2022-04-06 13:59:41,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:41,551 INFO L478 AbstractCegarLoop]: Abstraction has 1210 states and 1728 transitions. [2022-04-06 13:59:41,551 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 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) [2022-04-06 13:59:41,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1728 transitions. [2022-04-06 13:59:41,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-06 13:59:41,552 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:41,552 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:41,552 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-06 13:59:41,553 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:41,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:41,553 INFO L85 PathProgramCache]: Analyzing trace with hash 434121896, now seen corresponding path program 1 times [2022-04-06 13:59:41,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:41,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12105977] [2022-04-06 13:59:41,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:41,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:41,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:41,667 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 13:59:41,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:41,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12105977] [2022-04-06 13:59:41,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12105977] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:41,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:41,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:59:41,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356231533] [2022-04-06 13:59:41,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:41,668 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:59:41,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:41,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:59:41,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:41,669 INFO L87 Difference]: Start difference. First operand 1210 states and 1728 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:42,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:44,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:46,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:47,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:47,196 INFO L93 Difference]: Finished difference Result 2934 states and 4208 transitions. [2022-04-06 13:59:47,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:59:47,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 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 173 [2022-04-06 13:59:47,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:47,199 INFO L225 Difference]: With dead ends: 2934 [2022-04-06 13:59:47,199 INFO L226 Difference]: Without dead ends: 1752 [2022-04-06 13:59:47,200 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:47,201 INFO L913 BasicCegarLoop]: 308 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:47,201 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 502 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 339 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-04-06 13:59:47,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2022-04-06 13:59:47,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1752. [2022-04-06 13:59:47,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1747 states have (on average 1.4315970234688036) internal successors, (2501), 1747 states have internal predecessors, (2501), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:47,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 2505 transitions. [2022-04-06 13:59:47,231 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 2505 transitions. Word has length 173 [2022-04-06 13:59:47,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:47,231 INFO L478 AbstractCegarLoop]: Abstraction has 1752 states and 2505 transitions. [2022-04-06 13:59:47,231 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:47,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 2505 transitions. [2022-04-06 13:59:47,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-06 13:59:47,233 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:47,233 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:47,233 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-04-06 13:59:47,233 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:47,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:47,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1432094791, now seen corresponding path program 1 times [2022-04-06 13:59:47,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:47,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550368279] [2022-04-06 13:59:47,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:47,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:47,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:47,362 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-04-06 13:59:47,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:47,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550368279] [2022-04-06 13:59:47,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550368279] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:47,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:47,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:59:47,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296046278] [2022-04-06 13:59:47,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:47,364 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:59:47,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:47,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:59:47,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:59:47,365 INFO L87 Difference]: Start difference. First operand 1752 states and 2505 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:48,692 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 [] [2022-04-06 13:59:50,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:53,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:53,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:53,597 INFO L93 Difference]: Finished difference Result 3534 states and 5059 transitions. [2022-04-06 13:59:53,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:53,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-04-06 13:59:53,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:53,600 INFO L225 Difference]: With dead ends: 3534 [2022-04-06 13:59:53,600 INFO L226 Difference]: Without dead ends: 1810 [2022-04-06 13:59:53,602 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:59:53,602 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 36 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:53,602 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 582 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 464 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 13:59:53,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2022-04-06 13:59:53,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1752. [2022-04-06 13:59:53,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1747 states have (on average 1.4298797939324557) internal successors, (2498), 1747 states have internal predecessors, (2498), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:53,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 2502 transitions. [2022-04-06 13:59:53,627 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 2502 transitions. Word has length 173 [2022-04-06 13:59:53,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:53,627 INFO L478 AbstractCegarLoop]: Abstraction has 1752 states and 2502 transitions. [2022-04-06 13:59:53,627 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:53,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 2502 transitions. [2022-04-06 13:59:53,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-04-06 13:59:53,629 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:53,629 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:53,629 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-06 13:59:53,629 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:53,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:53,630 INFO L85 PathProgramCache]: Analyzing trace with hash 201941755, now seen corresponding path program 1 times [2022-04-06 13:59:53,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:53,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709464549] [2022-04-06 13:59:53,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:53,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:53,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:53,734 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-06 13:59:53,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:53,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709464549] [2022-04-06 13:59:53,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709464549] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:53,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:53,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:59:53,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791874816] [2022-04-06 13:59:53,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:53,735 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:59:53,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:53,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:59:53,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:53,736 INFO L87 Difference]: Start difference. First operand 1752 states and 2502 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:57,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:57,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:57,660 INFO L93 Difference]: Finished difference Result 4009 states and 5743 transitions. [2022-04-06 13:59:57,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:59:57,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 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 174 [2022-04-06 13:59:57,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:57,664 INFO L225 Difference]: With dead ends: 4009 [2022-04-06 13:59:57,664 INFO L226 Difference]: Without dead ends: 2285 [2022-04-06 13:59:57,665 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:57,665 INFO L913 BasicCegarLoop]: 318 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:57,666 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 512 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-04-06 13:59:57,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2285 states. [2022-04-06 13:59:57,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2285 to 2285. [2022-04-06 13:59:57,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2285 states, 2280 states have (on average 1.4307017543859648) internal successors, (3262), 2280 states have internal predecessors, (3262), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:57,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 3266 transitions. [2022-04-06 13:59:57,695 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 3266 transitions. Word has length 174 [2022-04-06 13:59:57,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:57,695 INFO L478 AbstractCegarLoop]: Abstraction has 2285 states and 3266 transitions. [2022-04-06 13:59:57,695 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:57,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 3266 transitions. [2022-04-06 13:59:57,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-04-06 13:59:57,698 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:57,698 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-04-06 13:59:57,699 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-04-06 13:59:57,699 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:57,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:57,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1885880363, now seen corresponding path program 1 times [2022-04-06 13:59:57,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:57,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195184246] [2022-04-06 13:59:57,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:57,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:57,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:57,836 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-04-06 13:59:57,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:57,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195184246] [2022-04-06 13:59:57,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195184246] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:57,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:57,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:59:57,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111701475] [2022-04-06 13:59:57,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:57,837 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:59:57,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:57,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:59:57,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:57,838 INFO L87 Difference]: Start difference. First operand 2285 states and 3266 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:59,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:01,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:03,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:03,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:03,509 INFO L93 Difference]: Finished difference Result 5121 states and 7336 transitions. [2022-04-06 14:00:03,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 14:00:03,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 246 [2022-04-06 14:00:03,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:03,513 INFO L225 Difference]: With dead ends: 5121 [2022-04-06 14:00:03,513 INFO L226 Difference]: Without dead ends: 2864 [2022-04-06 14:00:03,516 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 14:00:03,516 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 150 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:03,516 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 379 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 234 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 14:00:03,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2022-04-06 14:00:03,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 2864. [2022-04-06 14:00:03,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2864 states, 2859 states have (on average 1.4326687653025534) internal successors, (4096), 2859 states have internal predecessors, (4096), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:03,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2864 states to 2864 states and 4100 transitions. [2022-04-06 14:00:03,572 INFO L78 Accepts]: Start accepts. Automaton has 2864 states and 4100 transitions. Word has length 246 [2022-04-06 14:00:03,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:03,572 INFO L478 AbstractCegarLoop]: Abstraction has 2864 states and 4100 transitions. [2022-04-06 14:00:03,572 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:03,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2864 states and 4100 transitions. [2022-04-06 14:00:03,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-04-06 14:00:03,576 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:03,576 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-06 14:00:03,576 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-04-06 14:00:03,576 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:03,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:03,577 INFO L85 PathProgramCache]: Analyzing trace with hash 522812222, now seen corresponding path program 1 times [2022-04-06 14:00:03,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:03,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513171304] [2022-04-06 14:00:03,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:03,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:03,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:03,736 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-04-06 14:00:03,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:03,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513171304] [2022-04-06 14:00:03,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513171304] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:03,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:03,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:03,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134196473] [2022-04-06 14:00:03,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:03,737 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:03,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:03,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:03,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:03,738 INFO L87 Difference]: Start difference. First operand 2864 states and 4100 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:04,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:05,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:07,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:09,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:10,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:10,166 INFO L93 Difference]: Finished difference Result 6051 states and 8653 transitions. [2022-04-06 14:00:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:10,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 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 297 [2022-04-06 14:00:10,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:10,173 INFO L225 Difference]: With dead ends: 6051 [2022-04-06 14:00:10,173 INFO L226 Difference]: Without dead ends: 3215 [2022-04-06 14:00:10,176 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:10,176 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 47 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:10,177 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 603 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 538 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-04-06 14:00:10,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2022-04-06 14:00:10,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 3069. [2022-04-06 14:00:10,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3069 states, 3064 states have (on average 1.431462140992167) internal successors, (4386), 3064 states have internal predecessors, (4386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:10,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3069 states to 3069 states and 4390 transitions. [2022-04-06 14:00:10,236 INFO L78 Accepts]: Start accepts. Automaton has 3069 states and 4390 transitions. Word has length 297 [2022-04-06 14:00:10,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:10,237 INFO L478 AbstractCegarLoop]: Abstraction has 3069 states and 4390 transitions. [2022-04-06 14:00:10,237 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:10,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3069 states and 4390 transitions. [2022-04-06 14:00:10,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-04-06 14:00:10,242 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:10,242 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-06 14:00:10,242 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-04-06 14:00:10,243 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:10,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:10,243 INFO L85 PathProgramCache]: Analyzing trace with hash 307983069, now seen corresponding path program 1 times [2022-04-06 14:00:10,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:10,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403246669] [2022-04-06 14:00:10,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:10,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:10,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:10,633 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-04-06 14:00:10,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:10,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403246669] [2022-04-06 14:00:10,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403246669] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:10,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:10,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-06 14:00:10,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691693101] [2022-04-06 14:00:10,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:10,634 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-06 14:00:10,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:10,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-06 14:00:10,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-06 14:00:10,635 INFO L87 Difference]: Start difference. First operand 3069 states and 4390 transitions. Second operand has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:13,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:15,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:18,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:20,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:21,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:21,239 INFO L93 Difference]: Finished difference Result 8858 states and 12700 transitions. [2022-04-06 14:00:21,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-06 14:00:21,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 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 297 [2022-04-06 14:00:21,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:21,250 INFO L225 Difference]: With dead ends: 8858 [2022-04-06 14:00:21,251 INFO L226 Difference]: Without dead ends: 5817 [2022-04-06 14:00:21,257 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-04-06 14:00:21,257 INFO L913 BasicCegarLoop]: 290 mSDtfsCounter, 434 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 104 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:21,257 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 1029 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1014 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2022-04-06 14:00:21,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5817 states. [2022-04-06 14:00:21,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5817 to 5499. [2022-04-06 14:00:21,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5494 states have (on average 1.4450309428467418) internal successors, (7939), 5494 states have internal predecessors, (7939), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:21,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 7943 transitions. [2022-04-06 14:00:21,416 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 7943 transitions. Word has length 297 [2022-04-06 14:00:21,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:21,416 INFO L478 AbstractCegarLoop]: Abstraction has 5499 states and 7943 transitions. [2022-04-06 14:00:21,416 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:21,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 7943 transitions. [2022-04-06 14:00:21,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-04-06 14:00:21,424 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:21,425 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-06 14:00:21,425 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-04-06 14:00:21,425 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:21,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:21,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1375885393, now seen corresponding path program 1 times [2022-04-06 14:00:21,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:21,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346243053] [2022-04-06 14:00:21,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:21,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:21,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:21,605 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-04-06 14:00:21,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:21,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346243053] [2022-04-06 14:00:21,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346243053] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:21,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:21,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:21,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907521733] [2022-04-06 14:00:21,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:21,606 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:21,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:21,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:21,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:21,607 INFO L87 Difference]: Start difference. First operand 5499 states and 7943 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:22,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:25,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:27,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:28,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:28,129 INFO L93 Difference]: Finished difference Result 11247 states and 16219 transitions. [2022-04-06 14:00:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:28,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 298 [2022-04-06 14:00:28,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:28,139 INFO L225 Difference]: With dead ends: 11247 [2022-04-06 14:00:28,139 INFO L226 Difference]: Without dead ends: 5756 [2022-04-06 14:00:28,147 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:28,147 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 46 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:28,148 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 601 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 532 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-04-06 14:00:28,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2022-04-06 14:00:28,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 5484. [2022-04-06 14:00:28,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5479 states have (on average 1.444424164993612) internal successors, (7914), 5479 states have internal predecessors, (7914), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:28,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 7918 transitions. [2022-04-06 14:00:28,260 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 7918 transitions. Word has length 298 [2022-04-06 14:00:28,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:28,260 INFO L478 AbstractCegarLoop]: Abstraction has 5484 states and 7918 transitions. [2022-04-06 14:00:28,260 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:28,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 7918 transitions. [2022-04-06 14:00:28,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-04-06 14:00:28,269 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:28,269 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:00:28,269 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-04-06 14:00:28,269 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:28,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:28,269 INFO L85 PathProgramCache]: Analyzing trace with hash -893601060, now seen corresponding path program 1 times [2022-04-06 14:00:28,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:28,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985205781] [2022-04-06 14:00:28,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:28,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:28,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:28,507 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-04-06 14:00:28,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:28,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985205781] [2022-04-06 14:00:28,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985205781] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:28,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:28,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:28,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74200220] [2022-04-06 14:00:28,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:28,508 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:28,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:28,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:28,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:28,509 INFO L87 Difference]: Start difference. First operand 5484 states and 7918 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:29,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:32,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:34,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:35,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:35,205 INFO L93 Difference]: Finished difference Result 11212 states and 16164 transitions. [2022-04-06 14:00:35,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:35,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 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 319 [2022-04-06 14:00:35,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:35,214 INFO L225 Difference]: With dead ends: 11212 [2022-04-06 14:00:35,215 INFO L226 Difference]: Without dead ends: 5756 [2022-04-06 14:00:35,223 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:35,224 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 60 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:35,224 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 599 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 519 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-04-06 14:00:35,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2022-04-06 14:00:35,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 5484. [2022-04-06 14:00:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5479 states have (on average 1.4425990144186895) internal successors, (7904), 5479 states have internal predecessors, (7904), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:35,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 7908 transitions. [2022-04-06 14:00:35,397 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 7908 transitions. Word has length 319 [2022-04-06 14:00:35,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:35,397 INFO L478 AbstractCegarLoop]: Abstraction has 5484 states and 7908 transitions. [2022-04-06 14:00:35,397 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:35,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 7908 transitions. [2022-04-06 14:00:35,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-04-06 14:00:35,406 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:35,406 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:00:35,406 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-04-06 14:00:35,407 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:35,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:35,407 INFO L85 PathProgramCache]: Analyzing trace with hash -801415708, now seen corresponding path program 1 times [2022-04-06 14:00:35,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:35,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439239592] [2022-04-06 14:00:35,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:35,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:35,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:35,586 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-04-06 14:00:35,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:35,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439239592] [2022-04-06 14:00:35,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439239592] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:35,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:35,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:35,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391279825] [2022-04-06 14:00:35,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:35,587 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:35,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:35,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:35,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:35,589 INFO L87 Difference]: Start difference. First operand 5484 states and 7908 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:37,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:39,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:41,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:43,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:43,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:43,845 INFO L93 Difference]: Finished difference Result 11172 states and 16090 transitions. [2022-04-06 14:00:43,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:43,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 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 320 [2022-04-06 14:00:43,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:43,851 INFO L225 Difference]: With dead ends: 11172 [2022-04-06 14:00:43,852 INFO L226 Difference]: Without dead ends: 5716 [2022-04-06 14:00:43,857 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:43,858 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 54 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:43,858 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 591 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 504 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-04-06 14:00:43,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5716 states. [2022-04-06 14:00:43,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5716 to 5484. [2022-04-06 14:00:43,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5479 states have (on average 1.440773863843767) internal successors, (7894), 5479 states have internal predecessors, (7894), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:43,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 7898 transitions. [2022-04-06 14:00:43,970 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 7898 transitions. Word has length 320 [2022-04-06 14:00:43,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:43,970 INFO L478 AbstractCegarLoop]: Abstraction has 5484 states and 7898 transitions. [2022-04-06 14:00:43,971 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:43,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 7898 transitions. [2022-04-06 14:00:44,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2022-04-06 14:00:44,005 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:44,005 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-06 14:00:44,006 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-04-06 14:00:44,006 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:44,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:44,006 INFO L85 PathProgramCache]: Analyzing trace with hash -439796824, now seen corresponding path program 1 times [2022-04-06 14:00:44,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:44,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347391058] [2022-04-06 14:00:44,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:44,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:44,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:44,204 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 557 proven. 99 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-04-06 14:00:44,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:44,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347391058] [2022-04-06 14:00:44,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347391058] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:00:44,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285564998] [2022-04-06 14:00:44,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:44,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:00:44,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:00:44,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:00:44,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 14:00:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:45,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-06 14:00:45,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:00:45,776 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-04-06 14:00:45,806 INFO L356 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-04-06 14:00:45,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 78 [2022-04-06 14:00:45,821 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-04-06 14:00:45,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-04-06 14:00:45,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-04-06 14:00:46,014 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-04-06 14:00:46,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 21 [2022-04-06 14:00:46,025 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-04-06 14:00:46,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 14:00:46,282 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-04-06 14:00:46,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-06 14:00:46,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285564998] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:46,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-06 14:00:46,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-04-06 14:00:46,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996215111] [2022-04-06 14:00:46,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:46,283 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 14:00:46,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:46,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 14:00:46,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-04-06 14:00:46,284 INFO L87 Difference]: Start difference. First operand 5484 states and 7898 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:47,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:47,179 INFO L93 Difference]: Finished difference Result 11151 states and 16044 transitions. [2022-04-06 14:00:47,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 14:00:47,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 323 [2022-04-06 14:00:47,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:47,187 INFO L225 Difference]: With dead ends: 11151 [2022-04-06 14:00:47,187 INFO L226 Difference]: Without dead ends: 5695 [2022-04-06 14:00:47,195 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-06 14:00:47,196 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 49 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:47,196 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 601 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-06 14:00:47,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5695 states. [2022-04-06 14:00:47,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5695 to 5539. [2022-04-06 14:00:47,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5539 states, 5534 states have (on average 1.440007228044814) internal successors, (7969), 5534 states have internal predecessors, (7969), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:47,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5539 states to 5539 states and 7973 transitions. [2022-04-06 14:00:47,329 INFO L78 Accepts]: Start accepts. Automaton has 5539 states and 7973 transitions. Word has length 323 [2022-04-06 14:00:47,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:47,329 INFO L478 AbstractCegarLoop]: Abstraction has 5539 states and 7973 transitions. [2022-04-06 14:00:47,329 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:47,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5539 states and 7973 transitions. [2022-04-06 14:00:47,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-04-06 14:00:47,337 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:47,338 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-06 14:00:47,372 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-06 14:00:47,556 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:00:47,556 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:47,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:47,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1151994747, now seen corresponding path program 1 times [2022-04-06 14:00:47,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:47,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18613542] [2022-04-06 14:00:47,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:47,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:47,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:47,760 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 535 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-04-06 14:00:47,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:47,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18613542] [2022-04-06 14:00:47,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18613542] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:47,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:47,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:47,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685133672] [2022-04-06 14:00:47,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:47,763 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:47,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:47,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:47,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:47,766 INFO L87 Difference]: Start difference. First operand 5539 states and 7973 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:49,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:51,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:53,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:54,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:54,617 INFO L93 Difference]: Finished difference Result 11101 states and 15984 transitions. [2022-04-06 14:00:54,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:54,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 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 324 [2022-04-06 14:00:54,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:54,626 INFO L225 Difference]: With dead ends: 11101 [2022-04-06 14:00:54,626 INFO L226 Difference]: Without dead ends: 5590 [2022-04-06 14:00:54,633 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:54,633 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 38 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:54,633 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 582 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 468 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-04-06 14:00:54,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5590 states. [2022-04-06 14:00:54,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5590 to 5484. [2022-04-06 14:00:54,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5479 states have (on average 1.4398612885563058) internal successors, (7889), 5479 states have internal predecessors, (7889), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:54,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 7893 transitions. [2022-04-06 14:00:54,750 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 7893 transitions. Word has length 324 [2022-04-06 14:00:54,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:54,751 INFO L478 AbstractCegarLoop]: Abstraction has 5484 states and 7893 transitions. [2022-04-06 14:00:54,751 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:54,751 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 7893 transitions. [2022-04-06 14:00:54,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-04-06 14:00:54,759 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:54,759 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-06 14:00:54,759 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-04-06 14:00:54,759 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:54,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:54,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1716898329, now seen corresponding path program 1 times [2022-04-06 14:00:54,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:54,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645274974] [2022-04-06 14:00:54,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:54,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:55,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:55,810 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 399 proven. 413 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-04-06 14:00:55,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:55,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645274974] [2022-04-06 14:00:55,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645274974] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:00:55,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659450299] [2022-04-06 14:00:55,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:55,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:00:55,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:00:55,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:00:55,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-06 14:00:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:56,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 1670 conjuncts, 95 conjunts are in the unsatisfiable core [2022-04-06 14:00:56,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:00:56,983 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:00:56,983 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 14:00:57,112 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-06 14:00:57,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-04-06 14:00:57,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-04-06 14:00:57,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:00:57,303 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-04-06 14:00:57,331 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-04-06 14:00:57,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-04-06 14:00:57,341 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:00:57,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-04-06 14:00:58,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:00:58,059 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-04-06 14:00:58,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:00:58,077 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-06 14:00:58,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-04-06 14:00:58,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:00:58,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-06 14:00:58,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:00:58,144 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-06 14:00:58,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:00:58,172 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-06 14:00:58,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-04-06 14:00:58,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:00:58,178 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-06 14:00:58,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:00:58,966 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-06 14:00:58,966 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-04-06 14:00:58,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:00:59,006 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-06 14:00:59,007 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-04-06 14:00:59,050 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-04-06 14:00:59,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-04-06 14:01:00,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:00,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:00,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:00,441 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-04-06 14:01:00,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 305 treesize of output 330 [2022-04-06 14:01:00,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:00,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:00,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:00,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:00,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:00,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:00,455 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 333 treesize of output 273 [2022-04-06 14:01:00,488 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-04-06 14:01:00,488 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 333 treesize of output 267 [2022-04-06 14:01:03,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:03,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:03,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:03,965 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 300 treesize of output 236 [2022-04-06 14:01:03,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:03,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:03,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:03,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 300 treesize of output 242 [2022-04-06 14:01:03,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:03,997 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-06 14:01:03,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 300 treesize of output 300 [2022-04-06 14:01:04,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:04,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 87 [2022-04-06 14:01:04,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:04,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 59 [2022-04-06 14:01:04,303 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-04-06 14:01:04,303 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 74 [2022-04-06 14:01:04,364 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-06 14:01:04,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-04-06 14:01:04,518 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 14:01:04,518 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-04-06 14:01:04,546 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-06 14:01:04,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:01:07,695 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:01:07,697 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:01:07,697 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-04-06 14:01:07,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:01:07,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:01:07,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-04-06 14:01:09,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:01:09,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:01:09,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:01:09,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:09,607 INFO L356 Elim1Store]: treesize reduction 3, result has 25.0 percent of original size [2022-04-06 14:01:09,607 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 1 [2022-04-06 14:01:09,749 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-04-06 14:01:09,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659450299] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:01:09,750 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:01:09,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 14] total 44 [2022-04-06 14:01:09,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288983941] [2022-04-06 14:01:09,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 14:01:09,751 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-04-06 14:01:09,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:09,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-04-06 14:01:09,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1590, Unknown=0, NotChecked=0, Total=1892 [2022-04-06 14:01:09,752 INFO L87 Difference]: Start difference. First operand 5484 states and 7893 transitions. Second operand has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:10,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:12,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:14,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:16,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:18,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:21,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:23,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:32,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:32,660 INFO L93 Difference]: Finished difference Result 25399 states and 36089 transitions. [2022-04-06 14:01:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-04-06 14:01:32,661 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 326 [2022-04-06 14:01:32,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:32,687 INFO L225 Difference]: With dead ends: 25399 [2022-04-06 14:01:32,687 INFO L226 Difference]: Without dead ends: 19943 [2022-04-06 14:01:32,698 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 687 SyntacticMatches, 4 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5840 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=1783, Invalid=15247, Unknown=0, NotChecked=0, Total=17030 [2022-04-06 14:01:32,699 INFO L913 BasicCegarLoop]: 460 mSDtfsCounter, 2096 mSDsluCounter, 4543 mSDsCounter, 0 mSdLazyCounter, 5476 mSolverCounterSat, 227 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2096 SdHoareTripleChecker+Valid, 5003 SdHoareTripleChecker+Invalid, 7969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 5476 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 2261 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:32,699 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2096 Valid, 5003 Invalid, 7969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 5476 Invalid, 5 Unknown, 2261 Unchecked, 18.2s Time] [2022-04-06 14:01:32,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19943 states. [2022-04-06 14:01:32,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19943 to 6943. [2022-04-06 14:01:32,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6943 states, 6938 states have (on average 1.467569904871721) internal successors, (10182), 6938 states have internal predecessors, (10182), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:32,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6943 states to 6943 states and 10186 transitions. [2022-04-06 14:01:32,971 INFO L78 Accepts]: Start accepts. Automaton has 6943 states and 10186 transitions. Word has length 326 [2022-04-06 14:01:32,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:32,971 INFO L478 AbstractCegarLoop]: Abstraction has 6943 states and 10186 transitions. [2022-04-06 14:01:32,971 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:32,971 INFO L276 IsEmpty]: Start isEmpty. Operand 6943 states and 10186 transitions. [2022-04-06 14:01:32,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-04-06 14:01:32,979 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:32,979 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-06 14:01:33,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-04-06 14:01:33,179 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2022-04-06 14:01:33,179 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:33,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:33,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1003894121, now seen corresponding path program 1 times [2022-04-06 14:01:33,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:33,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891998627] [2022-04-06 14:01:33,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:33,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:34,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:34,146 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 399 proven. 413 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-04-06 14:01:34,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:34,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891998627] [2022-04-06 14:01:34,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891998627] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:01:34,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751011999] [2022-04-06 14:01:34,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:34,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:01:34,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:01:34,152 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:01:34,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-06 14:01:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:35,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 1697 conjuncts, 99 conjunts are in the unsatisfiable core [2022-04-06 14:01:35,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:01:35,445 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:01:35,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 14:01:35,535 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-06 14:01:35,535 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-04-06 14:01:35,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-04-06 14:01:35,666 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:01:35,667 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-06 14:01:35,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-06 14:01:35,683 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:01:35,684 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-06 14:01:35,687 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-06 14:01:35,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:35,698 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-04-06 14:01:35,722 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-04-06 14:01:35,722 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-04-06 14:01:35,730 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:01:35,730 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-04-06 14:01:36,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:36,347 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-06 14:01:36,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-04-06 14:01:36,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:36,352 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-06 14:01:36,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:36,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-06 14:01:36,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:36,435 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-06 14:01:36,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-04-06 14:01:36,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:36,461 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-06 14:01:36,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:36,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-06 14:01:37,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:37,139 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-06 14:01:37,139 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-04-06 14:01:37,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:37,173 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-06 14:01:37,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-04-06 14:01:37,220 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-04-06 14:01:37,221 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-04-06 14:01:44,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:44,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:44,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:44,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:44,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:44,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:44,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 253 [2022-04-06 14:01:44,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:44,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:44,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:44,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:44,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:44,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:44,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 253 [2022-04-06 14:01:44,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:44,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:44,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:01:44,239 INFO L356 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-04-06 14:01:44,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 295 treesize of output 299 [2022-04-06 14:03:27,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:27,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:27,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:27,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 244 [2022-04-06 14:03:27,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:27,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:27,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:27,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 244 [2022-04-06 14:03:27,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:27,302 INFO L356 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2022-04-06 14:03:27,303 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 290 treesize of output 280 [2022-04-06 14:03:30,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:30,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-04-06 14:03:30,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:30,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 78 [2022-04-06 14:03:30,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:30,101 INFO L356 Elim1Store]: treesize reduction 143, result has 11.7 percent of original size [2022-04-06 14:03:30,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 97 treesize of output 93 [2022-04-06 14:03:30,161 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-06 14:03:30,161 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-04-06 14:03:30,286 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 14:03:30,286 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-04-06 14:03:30,312 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-06 14:03:30,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:03:32,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:03:32,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:03:32,953 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 214 [2022-04-06 14:03:46,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:03:46,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:03:46,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:03:46,132 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:03:46,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:03:46,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:46,140 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-04-06 14:03:46,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 1 [2022-04-06 14:03:46,272 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-04-06 14:03:46,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751011999] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:03:46,272 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:03:46,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 15] total 44 [2022-04-06 14:03:46,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130415774] [2022-04-06 14:03:46,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 14:03:46,274 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-04-06 14:03:46,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:03:46,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-04-06 14:03:46,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1589, Unknown=5, NotChecked=0, Total=1892 [2022-04-06 14:03:46,274 INFO L87 Difference]: Start difference. First operand 6943 states and 10186 transitions. Second operand has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:48,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:05:06,274 WARN L232 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 120 DAG size of output: 79 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-04-06 14:05:45,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:05:45,373 INFO L93 Difference]: Finished difference Result 32568 states and 46397 transitions. [2022-04-06 14:05:45,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2022-04-06 14:05:45,373 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 327 [2022-04-06 14:05:45,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:05:45,406 INFO L225 Difference]: With dead ends: 32568 [2022-04-06 14:05:45,407 INFO L226 Difference]: Without dead ends: 25653 [2022-04-06 14:05:45,418 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 948 GetRequests, 751 SyntacticMatches, 4 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14342 ImplicationChecksByTransitivity, 122.0s TimeCoverageRelationStatistics Valid=4498, Invalid=33283, Unknown=49, NotChecked=0, Total=37830 [2022-04-06 14:05:45,418 INFO L913 BasicCegarLoop]: 540 mSDtfsCounter, 2393 mSDsluCounter, 7689 mSDsCounter, 0 mSdLazyCounter, 8437 mSolverCounterSat, 331 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2393 SdHoareTripleChecker+Valid, 8229 SdHoareTripleChecker+Invalid, 11730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 8437 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 2961 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-04-06 14:05:45,418 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2393 Valid, 8229 Invalid, 11730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 8437 Invalid, 1 Unknown, 2961 Unchecked, 9.6s Time] [2022-04-06 14:05:45,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25653 states. [2022-04-06 14:05:45,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25653 to 12766. [2022-04-06 14:05:45,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12766 states, 12761 states have (on average 1.4347621659744534) internal successors, (18309), 12761 states have internal predecessors, (18309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:45,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12766 states to 12766 states and 18313 transitions. [2022-04-06 14:05:45,993 INFO L78 Accepts]: Start accepts. Automaton has 12766 states and 18313 transitions. Word has length 327 [2022-04-06 14:05:45,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:05:45,993 INFO L478 AbstractCegarLoop]: Abstraction has 12766 states and 18313 transitions. [2022-04-06 14:05:45,993 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:45,993 INFO L276 IsEmpty]: Start isEmpty. Operand 12766 states and 18313 transitions. [2022-04-06 14:05:46,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-04-06 14:05:46,004 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:05:46,004 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-06 14:05:46,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-06 14:05:46,205 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:05:46,205 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:05:46,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:05:46,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1862554437, now seen corresponding path program 1 times [2022-04-06 14:05:46,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:05:46,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392687434] [2022-04-06 14:05:46,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:05:46,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:05:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:05:46,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:05:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:05:46,386 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 584 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-04-06 14:05:46,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:05:46,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392687434] [2022-04-06 14:05:46,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392687434] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:05:46,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:05:46,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:05:46,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852572822] [2022-04-06 14:05:46,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:05:46,387 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:05:46,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:05:46,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:05:46,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:05:46,388 INFO L87 Difference]: Start difference. First operand 12766 states and 18313 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:48,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:05:49,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:05:49,276 INFO L93 Difference]: Finished difference Result 25778 states and 36912 transitions. [2022-04-06 14:05:49,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:05:49,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 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 328 [2022-04-06 14:05:49,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:05:49,290 INFO L225 Difference]: With dead ends: 25778 [2022-04-06 14:05:49,291 INFO L226 Difference]: Without dead ends: 13040 [2022-04-06 14:05:49,298 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:05:49,298 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 38 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 14:05:49,299 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 581 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 14:05:49,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13040 states. [2022-04-06 14:05:49,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13040 to 12766. [2022-04-06 14:05:49,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12766 states, 12761 states have (on average 1.433351618211739) internal successors, (18291), 12761 states have internal predecessors, (18291), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:49,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12766 states to 12766 states and 18295 transitions. [2022-04-06 14:05:49,741 INFO L78 Accepts]: Start accepts. Automaton has 12766 states and 18295 transitions. Word has length 328 [2022-04-06 14:05:49,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:05:49,741 INFO L478 AbstractCegarLoop]: Abstraction has 12766 states and 18295 transitions. [2022-04-06 14:05:49,741 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:49,741 INFO L276 IsEmpty]: Start isEmpty. Operand 12766 states and 18295 transitions. [2022-04-06 14:05:49,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-04-06 14:05:49,752 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:05:49,752 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:05:49,752 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-04-06 14:05:49,753 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:05:49,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:05:49,753 INFO L85 PathProgramCache]: Analyzing trace with hash 552922059, now seen corresponding path program 1 times [2022-04-06 14:05:49,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:05:49,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523326796] [2022-04-06 14:05:49,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:05:49,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:05:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:05:50,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:05:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:05:50,012 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 547 proven. 74 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-04-06 14:05:50,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:05:50,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523326796] [2022-04-06 14:05:50,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523326796] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:05:50,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835509694] [2022-04-06 14:05:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:05:50,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:05:50,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:05:50,014 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:05:50,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-06 14:05:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:05:51,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 1677 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-06 14:05:51,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:05:51,365 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-06 14:05:51,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 14:05:51,531 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-04-06 14:05:51,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-06 14:05:51,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835509694] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:05:51,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-06 14:05:51,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-04-06 14:05:51,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072109745] [2022-04-06 14:05:51,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:05:51,532 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 14:05:51,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:05:51,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 14:05:51,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-06 14:05:51,532 INFO L87 Difference]: Start difference. First operand 12766 states and 18295 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:53,334 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 [] [2022-04-06 14:05:54,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:05:54,031 INFO L93 Difference]: Finished difference Result 26296 states and 37624 transitions. [2022-04-06 14:05:54,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 14:05:54,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 328 [2022-04-06 14:05:54,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:05:54,050 INFO L225 Difference]: With dead ends: 26296 [2022-04-06 14:05:54,051 INFO L226 Difference]: Without dead ends: 13558 [2022-04-06 14:05:54,082 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-04-06 14:05:54,083 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 47 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-06 14:05:54,083 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 609 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-06 14:05:54,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13558 states. [2022-04-06 14:05:54,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13558 to 13052. [2022-04-06 14:05:54,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13052 states, 13047 states have (on average 1.434506016708822) internal successors, (18716), 13047 states have internal predecessors, (18716), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:54,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13052 states to 13052 states and 18720 transitions. [2022-04-06 14:05:54,570 INFO L78 Accepts]: Start accepts. Automaton has 13052 states and 18720 transitions. Word has length 328 [2022-04-06 14:05:54,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:05:54,571 INFO L478 AbstractCegarLoop]: Abstraction has 13052 states and 18720 transitions. [2022-04-06 14:05:54,571 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:54,571 INFO L276 IsEmpty]: Start isEmpty. Operand 13052 states and 18720 transitions. [2022-04-06 14:05:54,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-04-06 14:05:54,585 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:05:54,585 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 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] [2022-04-06 14:05:54,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-06 14:05:54,788 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:05:54,789 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:05:54,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:05:54,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1376539798, now seen corresponding path program 1 times [2022-04-06 14:05:54,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:05:54,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88445263] [2022-04-06 14:05:54,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:05:54,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:05:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:05:55,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:05:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:05:55,052 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-04-06 14:05:55,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:05:55,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88445263] [2022-04-06 14:05:55,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88445263] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:05:55,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:05:55,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:05:55,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792307118] [2022-04-06 14:05:55,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:05:55,053 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:05:55,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:05:55,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:05:55,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:05:55,054 INFO L87 Difference]: Start difference. First operand 13052 states and 18720 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:57,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:05:57,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:05:57,943 INFO L93 Difference]: Finished difference Result 26389 states and 37790 transitions. [2022-04-06 14:05:57,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:05:57,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 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 328 [2022-04-06 14:05:57,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:05:57,960 INFO L225 Difference]: With dead ends: 26389 [2022-04-06 14:05:57,960 INFO L226 Difference]: Without dead ends: 13365 [2022-04-06 14:05:57,972 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:05:57,972 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 26 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:05:57,972 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 525 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 448 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 14:05:57,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13365 states. [2022-04-06 14:05:58,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13365 to 12920. [2022-04-06 14:05:58,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12920 states, 12915 states have (on average 1.4358497870692992) internal successors, (18544), 12915 states have internal predecessors, (18544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:58,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12920 states to 12920 states and 18548 transitions. [2022-04-06 14:05:58,418 INFO L78 Accepts]: Start accepts. Automaton has 12920 states and 18548 transitions. Word has length 328 [2022-04-06 14:05:58,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:05:58,419 INFO L478 AbstractCegarLoop]: Abstraction has 12920 states and 18548 transitions. [2022-04-06 14:05:58,419 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:58,419 INFO L276 IsEmpty]: Start isEmpty. Operand 12920 states and 18548 transitions. [2022-04-06 14:05:58,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-04-06 14:05:58,433 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:05:58,433 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:05:58,433 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-04-06 14:05:58,434 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:05:58,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:05:58,434 INFO L85 PathProgramCache]: Analyzing trace with hash -442480446, now seen corresponding path program 1 times [2022-04-06 14:05:58,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:05:58,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756711401] [2022-04-06 14:05:58,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:05:58,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:05:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:05:58,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:05:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:05:58,599 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-04-06 14:05:58,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:05:58,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756711401] [2022-04-06 14:05:58,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756711401] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:05:58,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:05:58,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:05:58,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039384415] [2022-04-06 14:05:58,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:05:58,600 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:05:58,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:05:58,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:05:58,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:05:58,601 INFO L87 Difference]: Start difference. First operand 12920 states and 18548 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:00,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:06:02,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:06:03,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:06:05,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:06:06,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:06:06,753 INFO L93 Difference]: Finished difference Result 25453 states and 36497 transitions. [2022-04-06 14:06:06,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:06:06,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 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 329 [2022-04-06 14:06:06,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:06:06,769 INFO L225 Difference]: With dead ends: 25453 [2022-04-06 14:06:06,769 INFO L226 Difference]: Without dead ends: 12561 [2022-04-06 14:06:06,781 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:06:06,781 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 14 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:06:06,781 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 553 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 381 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-04-06 14:06:06,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12561 states. [2022-04-06 14:06:07,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12561 to 12413. [2022-04-06 14:06:07,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12413 states, 12408 states have (on average 1.4320599613152805) internal successors, (17769), 12408 states have internal predecessors, (17769), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:07,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12413 states to 12413 states and 17773 transitions. [2022-04-06 14:06:07,256 INFO L78 Accepts]: Start accepts. Automaton has 12413 states and 17773 transitions. Word has length 329 [2022-04-06 14:06:07,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:06:07,256 INFO L478 AbstractCegarLoop]: Abstraction has 12413 states and 17773 transitions. [2022-04-06 14:06:07,256 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:07,256 INFO L276 IsEmpty]: Start isEmpty. Operand 12413 states and 17773 transitions. [2022-04-06 14:06:07,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-04-06 14:06:07,267 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:06:07,267 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-06 14:06:07,267 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-04-06 14:06:07,267 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:06:07,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:06:07,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1053472, now seen corresponding path program 1 times [2022-04-06 14:06:07,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:06:07,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050984067] [2022-04-06 14:06:07,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:06:07,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:06:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:07,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:06:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:07,507 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 559 proven. 19 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-04-06 14:06:07,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:06:07,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050984067] [2022-04-06 14:06:07,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050984067] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:06:07,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359265533] [2022-04-06 14:06:07,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:06:07,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:06:07,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:06:07,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:06:07,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-06 14:06:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:08,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 1691 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-06 14:06:08,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:06:08,884 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:06:08,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 14:06:08,953 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 14:06:09,051 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-04-06 14:06:09,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-06 14:06:09,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359265533] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:06:09,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-06 14:06:09,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-04-06 14:06:09,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849014406] [2022-04-06 14:06:09,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:06:09,055 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 14:06:09,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:06:09,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 14:06:09,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-06 14:06:09,055 INFO L87 Difference]: Start difference. First operand 12413 states and 17773 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:10,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:06:11,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:06:11,092 INFO L93 Difference]: Finished difference Result 25369 states and 36257 transitions. [2022-04-06 14:06:11,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 14:06:11,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 329 [2022-04-06 14:06:11,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:06:11,111 INFO L225 Difference]: With dead ends: 25369 [2022-04-06 14:06:11,111 INFO L226 Difference]: Without dead ends: 12984 [2022-04-06 14:06:11,122 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-04-06 14:06:11,122 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 48 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-06 14:06:11,122 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 609 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-06 14:06:11,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12984 states. [2022-04-06 14:06:11,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12984 to 12478. [2022-04-06 14:06:11,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12478 states, 12473 states have (on average 1.4327747935540769) internal successors, (17871), 12473 states have internal predecessors, (17871), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:11,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12478 states to 12478 states and 17875 transitions. [2022-04-06 14:06:11,575 INFO L78 Accepts]: Start accepts. Automaton has 12478 states and 17875 transitions. Word has length 329 [2022-04-06 14:06:11,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:06:11,575 INFO L478 AbstractCegarLoop]: Abstraction has 12478 states and 17875 transitions. [2022-04-06 14:06:11,575 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:11,575 INFO L276 IsEmpty]: Start isEmpty. Operand 12478 states and 17875 transitions. [2022-04-06 14:06:11,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-04-06 14:06:11,586 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:06:11,586 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-06 14:06:11,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-04-06 14:06:11,786 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:06:11,787 INFO L403 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:06:11,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:06:11,787 INFO L85 PathProgramCache]: Analyzing trace with hash -370537459, now seen corresponding path program 1 times [2022-04-06 14:06:11,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:06:11,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350558784] [2022-04-06 14:06:11,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:06:11,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:06:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:11,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:06:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:11,960 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 557 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2022-04-06 14:06:11,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:06:11,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350558784] [2022-04-06 14:06:11,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350558784] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:06:11,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:06:11,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:06:11,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630579009] [2022-04-06 14:06:11,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:06:11,961 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:06:11,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:06:11,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:06:11,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:06:11,962 INFO L87 Difference]: Start difference. First operand 12478 states and 17875 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:13,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:06:14,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:06:14,934 INFO L93 Difference]: Finished difference Result 25289 states and 36161 transitions. [2022-04-06 14:06:14,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:06:14,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 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 330 [2022-04-06 14:06:14,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:06:14,950 INFO L225 Difference]: With dead ends: 25289 [2022-04-06 14:06:14,950 INFO L226 Difference]: Without dead ends: 12839 [2022-04-06 14:06:14,961 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:06:14,961 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 43 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 14:06:14,961 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 596 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 501 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 14:06:14,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12839 states. [2022-04-06 14:06:15,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12839 to 12391. [2022-04-06 14:06:15,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12391 states, 12386 states have (on average 1.430001614726304) internal successors, (17712), 12386 states have internal predecessors, (17712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:15,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12391 states to 12391 states and 17716 transitions. [2022-04-06 14:06:15,449 INFO L78 Accepts]: Start accepts. Automaton has 12391 states and 17716 transitions. Word has length 330 [2022-04-06 14:06:15,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:06:15,449 INFO L478 AbstractCegarLoop]: Abstraction has 12391 states and 17716 transitions. [2022-04-06 14:06:15,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:15,449 INFO L276 IsEmpty]: Start isEmpty. Operand 12391 states and 17716 transitions. [2022-04-06 14:06:15,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-04-06 14:06:15,460 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:06:15,461 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 4, 4, 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] [2022-04-06 14:06:15,461 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-04-06 14:06:15,461 INFO L403 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:06:15,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:06:15,461 INFO L85 PathProgramCache]: Analyzing trace with hash 958280115, now seen corresponding path program 1 times [2022-04-06 14:06:15,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:06:15,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274182066] [2022-04-06 14:06:15,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:06:15,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:06:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:15,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:06:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:15,651 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 571 proven. 127 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-04-06 14:06:15,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:06:15,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274182066] [2022-04-06 14:06:15,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274182066] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:06:15,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405460029] [2022-04-06 14:06:15,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:06:15,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:06:15,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:06:15,656 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:06:15,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-06 14:06:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:16,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 23 conjunts are in the unsatisfiable core [2022-04-06 14:06:16,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:06:16,940 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:06:16,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 14:06:16,975 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 14:06:16,975 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 14:06:17,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-04-06 14:06:17,206 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:06:17,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 14:06:17,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 14:06:17,379 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 565 proven. 93 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-04-06 14:06:17,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:06:17,758 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 575 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-04-06 14:06:17,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405460029] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 14:06:17,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 14:06:17,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 13 [2022-04-06 14:06:17,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479495357] [2022-04-06 14:06:17,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:06:17,759 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 14:06:17,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:06:17,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 14:06:17,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-04-06 14:06:17,760 INFO L87 Difference]: Start difference. First operand 12391 states and 17716 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:19,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:06:19,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:06:19,941 INFO L93 Difference]: Finished difference Result 25527 states and 36413 transitions. [2022-04-06 14:06:19,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 14:06:19,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 330 [2022-04-06 14:06:19,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:06:19,959 INFO L225 Difference]: With dead ends: 25527 [2022-04-06 14:06:19,959 INFO L226 Difference]: Without dead ends: 13164 [2022-04-06 14:06:19,971 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 658 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-04-06 14:06:19,972 INFO L913 BasicCegarLoop]: 158 mSDtfsCounter, 98 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:06:19,972 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 417 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-06 14:06:19,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2022-04-06 14:06:20,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 12391. [2022-04-06 14:06:20,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12391 states, 12386 states have (on average 1.4280639431616342) internal successors, (17688), 12386 states have internal predecessors, (17688), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:20,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12391 states to 12391 states and 17692 transitions. [2022-04-06 14:06:20,433 INFO L78 Accepts]: Start accepts. Automaton has 12391 states and 17692 transitions. Word has length 330 [2022-04-06 14:06:20,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:06:20,433 INFO L478 AbstractCegarLoop]: Abstraction has 12391 states and 17692 transitions. [2022-04-06 14:06:20,433 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:20,433 INFO L276 IsEmpty]: Start isEmpty. Operand 12391 states and 17692 transitions. [2022-04-06 14:06:20,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-04-06 14:06:20,444 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:06:20,444 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-06 14:06:20,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-06 14:06:20,644 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:06:20,645 INFO L403 AbstractCegarLoop]: === Iteration 74 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:06:20,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:06:20,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1269388347, now seen corresponding path program 1 times [2022-04-06 14:06:20,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:06:20,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646572942] [2022-04-06 14:06:20,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:06:20,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:06:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:22,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:06:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 198 proven. 696 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 14:06:22,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:06:22,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646572942] [2022-04-06 14:06:22,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646572942] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:06:22,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906500944] [2022-04-06 14:06:22,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:06:22,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:06:22,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:06:22,170 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:06:22,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-04-06 14:06:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:23,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 1703 conjuncts, 99 conjunts are in the unsatisfiable core [2022-04-06 14:06:23,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:06:23,513 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:06:23,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 14:06:23,644 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-06 14:06:23,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-04-06 14:06:23,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-04-06 14:06:23,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:23,840 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-04-06 14:06:23,863 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-04-06 14:06:23,863 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-04-06 14:06:23,872 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:06:23,872 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-04-06 14:06:24,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:24,499 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-04-06 14:06:24,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:24,518 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-06 14:06:24,518 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-04-06 14:06:24,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:24,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-06 14:06:24,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:24,597 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-06 14:06:24,597 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-04-06 14:06:24,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:24,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-06 14:06:24,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:24,607 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-06 14:06:25,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:25,465 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-06 14:06:25,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-04-06 14:06:25,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:25,501 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-06 14:06:25,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-04-06 14:06:25,548 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-04-06 14:06:25,549 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-04-06 14:06:35,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:35,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:35,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:35,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:35,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:35,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:35,246 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 289 treesize of output 247 [2022-04-06 14:06:35,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:35,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:35,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:35,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:35,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:35,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:35,262 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 289 treesize of output 247 [2022-04-06 14:06:35,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:35,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:35,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:35,302 INFO L356 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-04-06 14:06:35,302 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 289 treesize of output 293