/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-21 00:07:00,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-21 00:07:00,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-21 00:07:00,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-21 00:07:00,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-21 00:07:00,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-21 00:07:00,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-21 00:07:00,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-21 00:07:00,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-21 00:07:00,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-21 00:07:00,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-21 00:07:00,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-21 00:07:00,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-21 00:07:00,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-21 00:07:00,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-21 00:07:00,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-21 00:07:00,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-21 00:07:00,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-21 00:07:00,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-21 00:07:00,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-21 00:07:00,673 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-21 00:07:00,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-21 00:07:00,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-21 00:07:00,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-21 00:07:00,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-21 00:07:00,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-21 00:07:00,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-21 00:07:00,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-21 00:07:00,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-21 00:07:00,692 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-21 00:07:00,701 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-21 00:07:00,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-21 00:07:00,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-21 00:07:00,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-21 00:07:00,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-21 00:07:00,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-21 00:07:00,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-21 00:07:00,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-21 00:07:00,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-21 00:07:00,704 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-21 00:07:00,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-21 00:07:00,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-21 00:07:00,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-21 00:07:00,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-21 00:07:00,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-21 00:07:00,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-21 00:07:00,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-21 00:07:00,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-21 00:07:00,705 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-21 00:07:00,705 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-21 00:07:00,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-21 00:07:00,705 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-21 00:07:00,705 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-21 00:07:00,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-21 00:07:00,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-21 00:07:00,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-21 00:07:00,903 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-21 00:07:00,904 INFO L275 PluginConnector]: CDTParser initialized [2022-03-21 00:07:00,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-03-21 00:07:00,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffb3e90de/5664e660f69444b3b5c516a1f08d8ee1/FLAG4fb8626b1 [2022-03-21 00:07:01,494 INFO L306 CDTParser]: Found 1 translation units. [2022-03-21 00:07:01,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-03-21 00:07:01,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffb3e90de/5664e660f69444b3b5c516a1f08d8ee1/FLAG4fb8626b1 [2022-03-21 00:07:01,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffb3e90de/5664e660f69444b3b5c516a1f08d8ee1 [2022-03-21 00:07:01,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-21 00:07:01,949 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-21 00:07:01,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-21 00:07:01,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-21 00:07:01,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-21 00:07:01,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.03 12:07:01" (1/1) ... [2022-03-21 00:07:01,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a24d1e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:01, skipping insertion in model container [2022-03-21 00:07:01,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.03 12:07:01" (1/1) ... [2022-03-21 00:07:01,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-21 00:07:02,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-21 00:07:02,300 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c[78520,78533] [2022-03-21 00:07:02,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-21 00:07:02,329 INFO L203 MainTranslator]: Completed pre-run [2022-03-21 00:07:02,392 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c[78520,78533] [2022-03-21 00:07:02,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-21 00:07:02,405 INFO L208 MainTranslator]: Completed translation [2022-03-21 00:07:02,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:02 WrapperNode [2022-03-21 00:07:02,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-21 00:07:02,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-21 00:07:02,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-21 00:07:02,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-21 00:07:02,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:02" (1/1) ... [2022-03-21 00:07:02,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:02" (1/1) ... [2022-03-21 00:07:02,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:02" (1/1) ... [2022-03-21 00:07:02,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:02" (1/1) ... [2022-03-21 00:07:02,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:02" (1/1) ... [2022-03-21 00:07:02,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:02" (1/1) ... [2022-03-21 00:07:02,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:02" (1/1) ... [2022-03-21 00:07:02,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-21 00:07:02,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-21 00:07:02,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-21 00:07:02,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-21 00:07:02,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:02" (1/1) ... [2022-03-21 00:07:02,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-21 00:07:02,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-21 00:07:02,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-21 00:07:02,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-21 00:07:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-21 00:07:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-21 00:07:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-21 00:07:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-21 00:07:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-21 00:07:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-21 00:07:02,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-21 00:07:02,596 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-21 00:07:02,596 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-21 00:07:02,596 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-21 00:07:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-21 00:07:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-21 00:07:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-21 00:07:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-21 00:07:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-21 00:07:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-21 00:07:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-21 00:07:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-21 00:07:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-21 00:07:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-21 00:07:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-21 00:07:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-21 00:07:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-21 00:07:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-21 00:07:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-21 00:07:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-21 00:07:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-21 00:07:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-21 00:07:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-21 00:07:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-21 00:07:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-21 00:07:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-21 00:07:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-21 00:07:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-21 00:07:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-21 00:07:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-21 00:07:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-21 00:07:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-21 00:07:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-21 00:07:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-21 00:07:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-21 00:07:02,709 INFO L234 CfgBuilder]: Building ICFG [2022-03-21 00:07:02,711 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-21 00:07:03,594 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-21 00:07:03,930 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-21 00:07:03,931 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-21 00:07:03,942 INFO L275 CfgBuilder]: Performing block encoding [2022-03-21 00:07:03,950 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-21 00:07:03,951 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-21 00:07:03,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.03 12:07:03 BoogieIcfgContainer [2022-03-21 00:07:03,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-21 00:07:03,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-21 00:07:03,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-21 00:07:03,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-21 00:07:03,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.03 12:07:01" (1/3) ... [2022-03-21 00:07:03,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150289cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.03 12:07:03, skipping insertion in model container [2022-03-21 00:07:03,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:02" (2/3) ... [2022-03-21 00:07:03,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150289cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.03 12:07:03, skipping insertion in model container [2022-03-21 00:07:03,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.03 12:07:03" (3/3) ... [2022-03-21 00:07:03,961 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.06.i.cil-1.c [2022-03-21 00:07:03,965 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-21 00:07:03,966 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-21 00:07:03,996 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-21 00:07:04,000 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-21 00:07:04,001 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-21 00:07:04,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-21 00:07:04,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-21 00:07:04,019 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:04,020 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, 1, 1] [2022-03-21 00:07:04,020 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:04,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:04,024 INFO L85 PathProgramCache]: Analyzing trace with hash -2054814794, now seen corresponding path program 1 times [2022-03-21 00:07:04,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:04,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1200962080] [2022-03-21 00:07:04,036 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-21 00:07:04,036 INFO L85 PathProgramCache]: Analyzing trace with hash -2054814794, now seen corresponding path program 2 times [2022-03-21 00:07:04,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:04,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787998611] [2022-03-21 00:07:04,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:04,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:04,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:04,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-21 00:07:04,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:04,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787998611] [2022-03-21 00:07:04,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787998611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:04,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:04,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:04,542 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:04,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1200962080] [2022-03-21 00:07:04,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1200962080] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:04,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:04,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:04,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501573541] [2022-03-21 00:07:04,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:04,546 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:04,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:04,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:04,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:04,573 INFO L87 Difference]: Start difference. First operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:07,141 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 [] [2022-03-21 00:07:09,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:09,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:09,768 INFO L93 Difference]: Finished difference Result 461 states and 788 transitions. [2022-03-21 00:07:09,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:09,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-03-21 00:07:09,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:09,779 INFO L225 Difference]: With dead ends: 461 [2022-03-21 00:07:09,779 INFO L226 Difference]: Without dead ends: 281 [2022-03-21 00:07:09,781 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:07:09,783 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 172 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:09,785 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 529 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 557 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-21 00:07:09,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-03-21 00:07:09,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 193. [2022-03-21 00:07:09,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.627659574468085) internal successors, (306), 188 states have internal predecessors, (306), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:09,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 310 transitions. [2022-03-21 00:07:09,823 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 310 transitions. Word has length 51 [2022-03-21 00:07:09,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:09,823 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 310 transitions. [2022-03-21 00:07:09,823 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:09,823 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 310 transitions. [2022-03-21 00:07:09,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-21 00:07:09,825 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:09,825 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, 1, 1, 1] [2022-03-21 00:07:09,825 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-21 00:07:09,825 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:09,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:09,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1754606550, now seen corresponding path program 1 times [2022-03-21 00:07:09,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:09,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [830069504] [2022-03-21 00:07:09,826 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-21 00:07:09,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1754606550, now seen corresponding path program 2 times [2022-03-21 00:07:09,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:09,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802389354] [2022-03-21 00:07:09,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:09,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:09,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:09,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-21 00:07:09,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:09,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802389354] [2022-03-21 00:07:09,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802389354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:09,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:09,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:09,961 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:09,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [830069504] [2022-03-21 00:07:09,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [830069504] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:09,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:09,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:09,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047255855] [2022-03-21 00:07:09,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:09,962 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:09,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:09,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:09,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:09,963 INFO L87 Difference]: Start difference. First operand 193 states and 310 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:12,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:14,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:15,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:15,926 INFO L93 Difference]: Finished difference Result 498 states and 803 transitions. [2022-03-21 00:07:15,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:15,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 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 52 [2022-03-21 00:07:15,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:15,928 INFO L225 Difference]: With dead ends: 498 [2022-03-21 00:07:15,928 INFO L226 Difference]: Without dead ends: 320 [2022-03-21 00:07:15,929 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:07:15,930 INFO L913 BasicCegarLoop]: 153 mSDtfsCounter, 139 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:15,930 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 436 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 511 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-21 00:07:15,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-03-21 00:07:15,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 233. [2022-03-21 00:07:15,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 228 states have (on average 1.6666666666666667) internal successors, (380), 228 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) [2022-03-21 00:07:15,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 384 transitions. [2022-03-21 00:07:15,945 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 384 transitions. Word has length 52 [2022-03-21 00:07:15,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:15,945 INFO L478 AbstractCegarLoop]: Abstraction has 233 states and 384 transitions. [2022-03-21 00:07:15,945 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:15,946 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 384 transitions. [2022-03-21 00:07:15,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-21 00:07:15,948 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:15,948 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1] [2022-03-21 00:07:15,948 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-21 00:07:15,948 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:15,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:15,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1389730828, now seen corresponding path program 1 times [2022-03-21 00:07:15,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:15,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [185248025] [2022-03-21 00:07:15,956 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:07:15,957 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:07:15,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1389730828, now seen corresponding path program 2 times [2022-03-21 00:07:15,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:15,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072416562] [2022-03-21 00:07:15,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:15,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:16,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:16,119 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-03-21 00:07:16,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:16,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072416562] [2022-03-21 00:07:16,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072416562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:16,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:16,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:16,120 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:16,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [185248025] [2022-03-21 00:07:16,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [185248025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:16,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:16,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:16,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723623025] [2022-03-21 00:07:16,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:16,121 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:16,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:16,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:16,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:16,122 INFO L87 Difference]: Start difference. First operand 233 states and 384 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:18,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:20,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:22,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:22,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:22,545 INFO L93 Difference]: Finished difference Result 479 states and 790 transitions. [2022-03-21 00:07:22,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:22,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80 [2022-03-21 00:07:22,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:22,546 INFO L225 Difference]: With dead ends: 479 [2022-03-21 00:07:22,547 INFO L226 Difference]: Without dead ends: 261 [2022-03-21 00:07:22,548 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:07:22,548 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 22 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:22,549 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 547 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 386 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-21 00:07:22,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-21 00:07:22,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 244. [2022-03-21 00:07:22,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.6694560669456067) internal successors, (399), 239 states have internal predecessors, (399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:22,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 403 transitions. [2022-03-21 00:07:22,560 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 403 transitions. Word has length 80 [2022-03-21 00:07:22,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:22,560 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 403 transitions. [2022-03-21 00:07:22,560 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:22,560 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 403 transitions. [2022-03-21 00:07:22,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-21 00:07:22,562 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:22,563 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:07:22,563 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-21 00:07:22,563 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:22,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:22,563 INFO L85 PathProgramCache]: Analyzing trace with hash -919671909, now seen corresponding path program 1 times [2022-03-21 00:07:22,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:22,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [269081226] [2022-03-21 00:07:22,571 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:07:22,571 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:07:22,572 INFO L85 PathProgramCache]: Analyzing trace with hash -919671909, now seen corresponding path program 2 times [2022-03-21 00:07:22,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:22,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606990191] [2022-03-21 00:07:22,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:22,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:22,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:22,718 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:07:22,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:22,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606990191] [2022-03-21 00:07:22,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606990191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:22,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:22,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:22,719 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:22,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [269081226] [2022-03-21 00:07:22,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [269081226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:22,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:22,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:22,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381005575] [2022-03-21 00:07:22,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:22,724 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:22,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:22,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:22,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:22,728 INFO L87 Difference]: Start difference. First operand 244 states and 403 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:23,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:25,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:27,290 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 [] [2022-03-21 00:07:28,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:28,470 INFO L93 Difference]: Finished difference Result 479 states and 789 transitions. [2022-03-21 00:07:28,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:28,471 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 93 [2022-03-21 00:07:28,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:28,472 INFO L225 Difference]: With dead ends: 479 [2022-03-21 00:07:28,472 INFO L226 Difference]: Without dead ends: 261 [2022-03-21 00:07:28,473 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:07:28,474 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 24 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:28,474 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 549 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-21 00:07:28,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-21 00:07:28,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 244. [2022-03-21 00:07:28,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.6652719665271967) internal successors, (398), 239 states have internal predecessors, (398), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:28,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 402 transitions. [2022-03-21 00:07:28,485 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 402 transitions. Word has length 93 [2022-03-21 00:07:28,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:28,485 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 402 transitions. [2022-03-21 00:07:28,485 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:28,485 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 402 transitions. [2022-03-21 00:07:28,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-21 00:07:28,488 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:28,488 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:07:28,488 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-21 00:07:28,488 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:28,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:28,488 INFO L85 PathProgramCache]: Analyzing trace with hash -596992565, now seen corresponding path program 1 times [2022-03-21 00:07:28,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:28,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [659732124] [2022-03-21 00:07:28,500 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:07:28,501 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:07:28,501 INFO L85 PathProgramCache]: Analyzing trace with hash -596992565, now seen corresponding path program 2 times [2022-03-21 00:07:28,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:28,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50999051] [2022-03-21 00:07:28,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:28,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:28,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:28,629 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:07:28,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:28,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50999051] [2022-03-21 00:07:28,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50999051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:28,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:28,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:28,633 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:28,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [659732124] [2022-03-21 00:07:28,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [659732124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:28,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:28,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:28,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680724840] [2022-03-21 00:07:28,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:28,634 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:28,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:28,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:28,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:28,635 INFO L87 Difference]: Start difference. First operand 244 states and 402 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:30,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:32,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:33,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:33,193 INFO L93 Difference]: Finished difference Result 548 states and 893 transitions. [2022-03-21 00:07:33,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:33,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-03-21 00:07:33,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:33,195 INFO L225 Difference]: With dead ends: 548 [2022-03-21 00:07:33,195 INFO L226 Difference]: Without dead ends: 330 [2022-03-21 00:07:33,196 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:07:33,198 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 167 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:33,198 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 438 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-21 00:07:33,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-03-21 00:07:33,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 244. [2022-03-21 00:07:33,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.6527196652719665) internal successors, (395), 239 states have internal predecessors, (395), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:33,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 399 transitions. [2022-03-21 00:07:33,213 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 399 transitions. Word has length 94 [2022-03-21 00:07:33,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:33,213 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 399 transitions. [2022-03-21 00:07:33,213 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:33,213 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 399 transitions. [2022-03-21 00:07:33,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-21 00:07:33,218 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:33,218 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:07:33,218 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-21 00:07:33,219 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:33,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:33,219 INFO L85 PathProgramCache]: Analyzing trace with hash -2058535073, now seen corresponding path program 1 times [2022-03-21 00:07:33,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:33,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1176827158] [2022-03-21 00:07:33,228 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:07:33,228 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:07:33,229 INFO L85 PathProgramCache]: Analyzing trace with hash -2058535073, now seen corresponding path program 2 times [2022-03-21 00:07:33,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:33,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847159412] [2022-03-21 00:07:33,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:33,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:33,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:33,352 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:07:33,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:33,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847159412] [2022-03-21 00:07:33,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847159412] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:33,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:33,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:33,353 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:33,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1176827158] [2022-03-21 00:07:33,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1176827158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:33,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:33,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:33,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559918339] [2022-03-21 00:07:33,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:33,354 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:33,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:33,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:33,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:33,355 INFO L87 Difference]: Start difference. First operand 244 states and 399 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:35,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:37,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:39,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:40,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:40,352 INFO L93 Difference]: Finished difference Result 478 states and 782 transitions. [2022-03-21 00:07:40,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:40,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-03-21 00:07:40,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:40,354 INFO L225 Difference]: With dead ends: 478 [2022-03-21 00:07:40,354 INFO L226 Difference]: Without dead ends: 260 [2022-03-21 00:07:40,354 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:07:40,355 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 26 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:40,355 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 551 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 381 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-03-21 00:07:40,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-03-21 00:07:40,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 244. [2022-03-21 00:07:40,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.6485355648535565) internal successors, (394), 239 states have internal predecessors, (394), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:40,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 398 transitions. [2022-03-21 00:07:40,362 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 398 transitions. Word has length 94 [2022-03-21 00:07:40,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:40,363 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 398 transitions. [2022-03-21 00:07:40,363 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:40,363 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 398 transitions. [2022-03-21 00:07:40,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-21 00:07:40,366 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:40,366 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:07:40,366 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-21 00:07:40,366 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:40,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:40,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1608105110, now seen corresponding path program 1 times [2022-03-21 00:07:40,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:40,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1506866664] [2022-03-21 00:07:40,389 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:07:40,389 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:07:40,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1608105110, now seen corresponding path program 2 times [2022-03-21 00:07:40,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:40,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719066595] [2022-03-21 00:07:40,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:40,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:40,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:40,489 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:07:40,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:40,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719066595] [2022-03-21 00:07:40,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719066595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:40,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:40,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:40,489 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:40,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1506866664] [2022-03-21 00:07:40,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1506866664] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:40,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:40,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:40,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567104242] [2022-03-21 00:07:40,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:40,490 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:40,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:40,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:40,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:40,491 INFO L87 Difference]: Start difference. First operand 244 states and 398 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:43,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:45,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:45,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:45,901 INFO L93 Difference]: Finished difference Result 476 states and 779 transitions. [2022-03-21 00:07:45,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:45,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-03-21 00:07:45,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:45,902 INFO L225 Difference]: With dead ends: 476 [2022-03-21 00:07:45,902 INFO L226 Difference]: Without dead ends: 258 [2022-03-21 00:07:45,903 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:07:45,903 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 20 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:45,903 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 555 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-21 00:07:45,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-03-21 00:07:45,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 244. [2022-03-21 00:07:45,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.6443514644351465) internal successors, (393), 239 states have internal predecessors, (393), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:45,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 397 transitions. [2022-03-21 00:07:45,912 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 397 transitions. Word has length 94 [2022-03-21 00:07:45,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:45,912 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 397 transitions. [2022-03-21 00:07:45,912 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:45,912 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 397 transitions. [2022-03-21 00:07:45,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-21 00:07:45,913 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:45,913 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:07:45,913 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-21 00:07:45,913 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:45,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:45,914 INFO L85 PathProgramCache]: Analyzing trace with hash -448530665, now seen corresponding path program 1 times [2022-03-21 00:07:45,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:45,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1391168294] [2022-03-21 00:07:45,936 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:07:45,936 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:07:45,936 INFO L85 PathProgramCache]: Analyzing trace with hash -448530665, now seen corresponding path program 2 times [2022-03-21 00:07:45,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:45,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636050325] [2022-03-21 00:07:45,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:45,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:46,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:46,029 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:07:46,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:46,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636050325] [2022-03-21 00:07:46,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636050325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:46,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:46,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:46,030 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:46,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1391168294] [2022-03-21 00:07:46,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1391168294] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:46,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:46,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:46,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159037814] [2022-03-21 00:07:46,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:46,030 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:46,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:46,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:46,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:46,031 INFO L87 Difference]: Start difference. First operand 244 states and 397 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:47,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:50,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:51,552 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 [] [2022-03-21 00:07:51,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:51,920 INFO L93 Difference]: Finished difference Result 475 states and 777 transitions. [2022-03-21 00:07:51,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:51,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-03-21 00:07:51,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:51,944 INFO L225 Difference]: With dead ends: 475 [2022-03-21 00:07:51,944 INFO L226 Difference]: Without dead ends: 257 [2022-03-21 00:07:51,945 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:07:51,945 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 18 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:51,945 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 557 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-03-21 00:07:51,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-21 00:07:51,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 244. [2022-03-21 00:07:51,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.6401673640167365) internal successors, (392), 239 states have internal predecessors, (392), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:51,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 396 transitions. [2022-03-21 00:07:51,956 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 396 transitions. Word has length 94 [2022-03-21 00:07:51,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:51,958 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 396 transitions. [2022-03-21 00:07:51,958 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:51,958 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 396 transitions. [2022-03-21 00:07:51,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-21 00:07:51,959 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:51,959 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:07:51,959 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-21 00:07:51,959 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:51,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:51,959 INFO L85 PathProgramCache]: Analyzing trace with hash 263287940, now seen corresponding path program 1 times [2022-03-21 00:07:51,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:51,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2001894590] [2022-03-21 00:07:51,967 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:07:51,967 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:07:51,967 INFO L85 PathProgramCache]: Analyzing trace with hash 263287940, now seen corresponding path program 2 times [2022-03-21 00:07:51,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:51,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217175154] [2022-03-21 00:07:51,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:51,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:52,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:52,055 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:07:52,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:52,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217175154] [2022-03-21 00:07:52,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217175154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:52,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:52,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:52,056 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:52,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2001894590] [2022-03-21 00:07:52,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2001894590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:52,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:52,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:52,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11689729] [2022-03-21 00:07:52,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:52,057 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:52,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:52,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:52,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:52,058 INFO L87 Difference]: Start difference. First operand 244 states and 396 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:55,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:56,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:56,319 INFO L93 Difference]: Finished difference Result 475 states and 776 transitions. [2022-03-21 00:07:56,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:56,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 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 95 [2022-03-21 00:07:56,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:56,321 INFO L225 Difference]: With dead ends: 475 [2022-03-21 00:07:56,321 INFO L226 Difference]: Without dead ends: 257 [2022-03-21 00:07:56,322 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:07:56,322 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 22 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:56,322 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 557 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-21 00:07:56,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-21 00:07:56,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 244. [2022-03-21 00:07:56,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.6359832635983265) internal successors, (391), 239 states have internal predecessors, (391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:56,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 395 transitions. [2022-03-21 00:07:56,329 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 395 transitions. Word has length 95 [2022-03-21 00:07:56,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:56,330 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 395 transitions. [2022-03-21 00:07:56,330 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:56,330 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 395 transitions. [2022-03-21 00:07:56,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-21 00:07:56,331 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:56,331 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:07:56,331 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-21 00:07:56,331 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:56,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:56,331 INFO L85 PathProgramCache]: Analyzing trace with hash -706978684, now seen corresponding path program 1 times [2022-03-21 00:07:56,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:56,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1176108937] [2022-03-21 00:07:56,338 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:07:56,338 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:07:56,338 INFO L85 PathProgramCache]: Analyzing trace with hash -706978684, now seen corresponding path program 2 times [2022-03-21 00:07:56,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:56,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676258542] [2022-03-21 00:07:56,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:56,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:56,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:56,420 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:07:56,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:56,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676258542] [2022-03-21 00:07:56,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676258542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:56,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:56,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:56,420 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:56,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1176108937] [2022-03-21 00:07:56,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1176108937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:56,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:56,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:56,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528467313] [2022-03-21 00:07:56,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:56,421 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:56,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:56,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:56,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:56,421 INFO L87 Difference]: Start difference. First operand 244 states and 395 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:59,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:01,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:03,097 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 [] [2022-03-21 00:08:03,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:03,553 INFO L93 Difference]: Finished difference Result 548 states and 884 transitions. [2022-03-21 00:08:03,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:03,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 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 96 [2022-03-21 00:08:03,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:03,555 INFO L225 Difference]: With dead ends: 548 [2022-03-21 00:08:03,555 INFO L226 Difference]: Without dead ends: 330 [2022-03-21 00:08:03,555 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:03,556 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 163 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:03,556 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 438 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 509 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-21 00:08:03,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-03-21 00:08:03,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 244. [2022-03-21 00:08:03,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.6234309623430963) internal successors, (388), 239 states have internal predecessors, (388), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:03,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 392 transitions. [2022-03-21 00:08:03,563 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 392 transitions. Word has length 96 [2022-03-21 00:08:03,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:03,563 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 392 transitions. [2022-03-21 00:08:03,563 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:03,563 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 392 transitions. [2022-03-21 00:08:03,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-21 00:08:03,564 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:03,564 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:08:03,564 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-21 00:08:03,564 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:03,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:03,565 INFO L85 PathProgramCache]: Analyzing trace with hash -652808951, now seen corresponding path program 1 times [2022-03-21 00:08:03,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:03,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [744198979] [2022-03-21 00:08:03,571 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:08:03,571 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:03,571 INFO L85 PathProgramCache]: Analyzing trace with hash -652808951, now seen corresponding path program 2 times [2022-03-21 00:08:03,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:03,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333164663] [2022-03-21 00:08:03,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:03,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:03,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:03,694 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:08:03,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:03,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333164663] [2022-03-21 00:08:03,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333164663] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:03,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:03,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:03,694 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:03,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [744198979] [2022-03-21 00:08:03,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [744198979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:03,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:03,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:03,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825614489] [2022-03-21 00:08:03,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:03,695 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:03,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:03,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:03,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:03,696 INFO L87 Difference]: Start difference. First operand 244 states and 392 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:06,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:07,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:07,586 INFO L93 Difference]: Finished difference Result 465 states and 757 transitions. [2022-03-21 00:08:07,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:07,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-21 00:08:07,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:07,587 INFO L225 Difference]: With dead ends: 465 [2022-03-21 00:08:07,587 INFO L226 Difference]: Without dead ends: 247 [2022-03-21 00:08:07,588 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:07,588 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 11 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:07,588 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 571 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 363 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-03-21 00:08:07,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-03-21 00:08:07,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 244. [2022-03-21 00:08:07,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.6192468619246863) internal successors, (387), 239 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:07,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 391 transitions. [2022-03-21 00:08:07,594 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 391 transitions. Word has length 97 [2022-03-21 00:08:07,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:07,595 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 391 transitions. [2022-03-21 00:08:07,595 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:07,595 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 391 transitions. [2022-03-21 00:08:07,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-21 00:08:07,596 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:07,596 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:08:07,596 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-21 00:08:07,596 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:07,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:07,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1975059598, now seen corresponding path program 1 times [2022-03-21 00:08:07,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:07,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1518091005] [2022-03-21 00:08:07,603 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:08:07,603 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:07,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1975059598, now seen corresponding path program 2 times [2022-03-21 00:08:07,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:07,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486695245] [2022-03-21 00:08:07,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:07,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:07,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:07,708 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-21 00:08:07,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:07,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486695245] [2022-03-21 00:08:07,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486695245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:07,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:07,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:07,708 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:07,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1518091005] [2022-03-21 00:08:07,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1518091005] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:07,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:07,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:07,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101841634] [2022-03-21 00:08:07,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:07,709 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:07,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:07,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:07,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:07,709 INFO L87 Difference]: Start difference. First operand 244 states and 391 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) [2022-03-21 00:08:09,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:10,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:10,250 INFO L93 Difference]: Finished difference Result 624 states and 1016 transitions. [2022-03-21 00:08:10,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:10,250 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 97 [2022-03-21 00:08:10,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:10,252 INFO L225 Difference]: With dead ends: 624 [2022-03-21 00:08:10,252 INFO L226 Difference]: Without dead ends: 406 [2022-03-21 00:08:10,252 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:10,253 INFO L913 BasicCegarLoop]: 146 mSDtfsCounter, 144 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:10,253 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 422 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:08:10,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2022-03-21 00:08:10,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 308. [2022-03-21 00:08:10,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 303 states have (on average 1.646864686468647) internal successors, (499), 303 states have internal predecessors, (499), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:10,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 503 transitions. [2022-03-21 00:08:10,263 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 503 transitions. Word has length 97 [2022-03-21 00:08:10,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:10,263 INFO L478 AbstractCegarLoop]: Abstraction has 308 states and 503 transitions. [2022-03-21 00:08:10,263 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) [2022-03-21 00:08:10,263 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 503 transitions. [2022-03-21 00:08:10,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-03-21 00:08:10,264 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:10,264 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:08:10,264 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-21 00:08:10,264 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:10,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:10,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1309299672, now seen corresponding path program 1 times [2022-03-21 00:08:10,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:10,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [782189653] [2022-03-21 00:08:10,272 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:08:10,272 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:10,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1309299672, now seen corresponding path program 2 times [2022-03-21 00:08:10,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:10,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640965009] [2022-03-21 00:08:10,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:10,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:10,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:10,352 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-21 00:08:10,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:10,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640965009] [2022-03-21 00:08:10,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640965009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:10,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:10,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:10,353 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:10,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [782189653] [2022-03-21 00:08:10,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [782189653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:10,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:10,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:10,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157090108] [2022-03-21 00:08:10,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:10,354 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:10,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:10,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:10,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:10,354 INFO L87 Difference]: Start difference. First operand 308 states and 503 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:11,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:14,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:15,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:15,602 INFO L93 Difference]: Finished difference Result 632 states and 1039 transitions. [2022-03-21 00:08:15,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:15,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2022-03-21 00:08:15,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:15,604 INFO L225 Difference]: With dead ends: 632 [2022-03-21 00:08:15,604 INFO L226 Difference]: Without dead ends: 350 [2022-03-21 00:08:15,605 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:15,605 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 32 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:15,605 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 571 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 417 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-21 00:08:15,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-03-21 00:08:15,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 330. [2022-03-21 00:08:15,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 325 states have (on average 1.646153846153846) internal successors, (535), 325 states have internal predecessors, (535), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:15,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 539 transitions. [2022-03-21 00:08:15,628 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 539 transitions. Word has length 103 [2022-03-21 00:08:15,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:15,628 INFO L478 AbstractCegarLoop]: Abstraction has 330 states and 539 transitions. [2022-03-21 00:08:15,628 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:15,629 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 539 transitions. [2022-03-21 00:08:15,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-21 00:08:15,629 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:15,629 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:08:15,630 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-21 00:08:15,630 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:15,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:15,630 INFO L85 PathProgramCache]: Analyzing trace with hash 380170461, now seen corresponding path program 1 times [2022-03-21 00:08:15,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:15,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1485598309] [2022-03-21 00:08:15,644 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:08:15,644 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:15,644 INFO L85 PathProgramCache]: Analyzing trace with hash 380170461, now seen corresponding path program 2 times [2022-03-21 00:08:15,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:15,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765731522] [2022-03-21 00:08:15,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:15,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:15,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:15,730 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:08:15,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:15,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765731522] [2022-03-21 00:08:15,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765731522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:15,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:15,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:15,731 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:15,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1485598309] [2022-03-21 00:08:15,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1485598309] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:15,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:15,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:15,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027501992] [2022-03-21 00:08:15,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:15,731 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:15,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:15,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:15,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:15,732 INFO L87 Difference]: Start difference. First operand 330 states and 539 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:18,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:20,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:21,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:21,440 INFO L93 Difference]: Finished difference Result 760 states and 1244 transitions. [2022-03-21 00:08:21,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:21,440 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 110 [2022-03-21 00:08:21,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:21,442 INFO L225 Difference]: With dead ends: 760 [2022-03-21 00:08:21,442 INFO L226 Difference]: Without dead ends: 456 [2022-03-21 00:08:21,443 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:21,443 INFO L913 BasicCegarLoop]: 271 mSDtfsCounter, 161 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:21,443 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 672 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 629 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-21 00:08:21,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-03-21 00:08:21,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 346. [2022-03-21 00:08:21,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.6275659824046922) internal successors, (555), 341 states have internal predecessors, (555), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:21,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 559 transitions. [2022-03-21 00:08:21,455 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 559 transitions. Word has length 110 [2022-03-21 00:08:21,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:21,455 INFO L478 AbstractCegarLoop]: Abstraction has 346 states and 559 transitions. [2022-03-21 00:08:21,455 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:21,455 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 559 transitions. [2022-03-21 00:08:21,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-21 00:08:21,456 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:21,456 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:08:21,456 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-21 00:08:21,456 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:21,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:21,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1046454380, now seen corresponding path program 1 times [2022-03-21 00:08:21,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:21,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [802546680] [2022-03-21 00:08:21,465 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:08:21,465 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:21,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1046454380, now seen corresponding path program 2 times [2022-03-21 00:08:21,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:21,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265229769] [2022-03-21 00:08:21,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:21,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:21,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:21,544 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:08:21,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:21,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265229769] [2022-03-21 00:08:21,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265229769] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:21,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:21,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:21,545 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:21,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [802546680] [2022-03-21 00:08:21,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [802546680] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:21,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:21,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:21,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265485739] [2022-03-21 00:08:21,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:21,546 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:21,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:21,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:21,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:21,546 INFO L87 Difference]: Start difference. First operand 346 states and 559 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:24,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:25,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:26,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:26,211 INFO L93 Difference]: Finished difference Result 752 states and 1214 transitions. [2022-03-21 00:08:26,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:26,211 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 111 [2022-03-21 00:08:26,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:26,213 INFO L225 Difference]: With dead ends: 752 [2022-03-21 00:08:26,213 INFO L226 Difference]: Without dead ends: 432 [2022-03-21 00:08:26,214 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:26,214 INFO L913 BasicCegarLoop]: 140 mSDtfsCounter, 160 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:26,214 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 410 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-21 00:08:26,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-03-21 00:08:26,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 346. [2022-03-21 00:08:26,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.6129032258064515) internal successors, (550), 341 states have internal predecessors, (550), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:26,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 554 transitions. [2022-03-21 00:08:26,226 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 554 transitions. Word has length 111 [2022-03-21 00:08:26,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:26,226 INFO L478 AbstractCegarLoop]: Abstraction has 346 states and 554 transitions. [2022-03-21 00:08:26,226 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:26,226 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 554 transitions. [2022-03-21 00:08:26,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-21 00:08:26,227 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:26,227 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:08:26,227 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-21 00:08:26,227 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:26,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:26,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1370065197, now seen corresponding path program 1 times [2022-03-21 00:08:26,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:26,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1712397761] [2022-03-21 00:08:26,237 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:08:26,238 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:26,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1370065197, now seen corresponding path program 2 times [2022-03-21 00:08:26,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:26,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144026765] [2022-03-21 00:08:26,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:26,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:26,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:26,322 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-21 00:08:26,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:26,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144026765] [2022-03-21 00:08:26,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144026765] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:26,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:26,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:26,322 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:26,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1712397761] [2022-03-21 00:08:26,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1712397761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:26,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:26,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:26,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275170688] [2022-03-21 00:08:26,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:26,323 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:26,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:26,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:26,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:26,323 INFO L87 Difference]: Start difference. First operand 346 states and 554 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) [2022-03-21 00:08:28,148 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 [] [2022-03-21 00:08:30,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:31,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:31,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:31,895 INFO L93 Difference]: Finished difference Result 678 states and 1093 transitions. [2022-03-21 00:08:31,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:31,895 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 117 [2022-03-21 00:08:31,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:31,896 INFO L225 Difference]: With dead ends: 678 [2022-03-21 00:08:31,896 INFO L226 Difference]: Without dead ends: 358 [2022-03-21 00:08:31,897 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:31,898 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 20 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:31,898 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 636 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 415 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-21 00:08:31,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-03-21 00:08:31,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 346. [2022-03-21 00:08:31,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.6099706744868034) internal successors, (549), 341 states have internal predecessors, (549), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:31,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 553 transitions. [2022-03-21 00:08:31,910 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 553 transitions. Word has length 117 [2022-03-21 00:08:31,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:31,910 INFO L478 AbstractCegarLoop]: Abstraction has 346 states and 553 transitions. [2022-03-21 00:08:31,910 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) [2022-03-21 00:08:31,910 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 553 transitions. [2022-03-21 00:08:31,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-21 00:08:31,911 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:31,911 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:08:31,911 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-21 00:08:31,912 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:31,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:31,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1470268555, now seen corresponding path program 1 times [2022-03-21 00:08:31,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:31,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [235292636] [2022-03-21 00:08:31,921 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:08:31,921 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:31,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1470268555, now seen corresponding path program 2 times [2022-03-21 00:08:31,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:31,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836377562] [2022-03-21 00:08:31,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:31,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:32,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:32,008 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-21 00:08:32,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:32,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836377562] [2022-03-21 00:08:32,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836377562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:32,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:32,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:32,009 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:32,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [235292636] [2022-03-21 00:08:32,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [235292636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:32,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:32,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:32,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479612786] [2022-03-21 00:08:32,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:32,009 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:32,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:32,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:32,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:32,010 INFO L87 Difference]: Start difference. First operand 346 states and 553 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:34,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:35,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:37,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:38,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:38,402 INFO L93 Difference]: Finished difference Result 751 states and 1201 transitions. [2022-03-21 00:08:38,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:38,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 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 [2022-03-21 00:08:38,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:38,404 INFO L225 Difference]: With dead ends: 751 [2022-03-21 00:08:38,404 INFO L226 Difference]: Without dead ends: 431 [2022-03-21 00:08:38,405 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:38,405 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 158 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:38,405 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 412 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-03-21 00:08:38,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-03-21 00:08:38,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 346. [2022-03-21 00:08:38,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.595307917888563) internal successors, (544), 341 states have internal predecessors, (544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:38,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 548 transitions. [2022-03-21 00:08:38,424 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 548 transitions. Word has length 117 [2022-03-21 00:08:38,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:38,424 INFO L478 AbstractCegarLoop]: Abstraction has 346 states and 548 transitions. [2022-03-21 00:08:38,424 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:38,424 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 548 transitions. [2022-03-21 00:08:38,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-21 00:08:38,425 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:38,425 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-21 00:08:38,425 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-21 00:08:38,425 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:38,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:38,426 INFO L85 PathProgramCache]: Analyzing trace with hash 77135184, now seen corresponding path program 1 times [2022-03-21 00:08:38,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:38,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [500251366] [2022-03-21 00:08:38,441 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:08:38,442 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:38,442 INFO L85 PathProgramCache]: Analyzing trace with hash 77135184, now seen corresponding path program 2 times [2022-03-21 00:08:38,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:38,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642122133] [2022-03-21 00:08:38,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:38,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:38,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:38,550 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-21 00:08:38,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:38,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642122133] [2022-03-21 00:08:38,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642122133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:38,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:38,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:38,551 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:38,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [500251366] [2022-03-21 00:08:38,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [500251366] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:38,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:38,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:38,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023521641] [2022-03-21 00:08:38,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:38,552 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:38,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:38,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:38,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:38,552 INFO L87 Difference]: Start difference. First operand 346 states and 548 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:41,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:42,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:43,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:44,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:44,244 INFO L93 Difference]: Finished difference Result 751 states and 1191 transitions. [2022-03-21 00:08:44,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:44,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-21 00:08:44,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:44,246 INFO L225 Difference]: With dead ends: 751 [2022-03-21 00:08:44,246 INFO L226 Difference]: Without dead ends: 431 [2022-03-21 00:08:44,247 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:44,247 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 163 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:44,247 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 412 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-21 00:08:44,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-03-21 00:08:44,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 346. [2022-03-21 00:08:44,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.5777126099706744) internal successors, (538), 341 states have internal predecessors, (538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:44,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 542 transitions. [2022-03-21 00:08:44,261 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 542 transitions. Word has length 118 [2022-03-21 00:08:44,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:44,261 INFO L478 AbstractCegarLoop]: Abstraction has 346 states and 542 transitions. [2022-03-21 00:08:44,262 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:44,262 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 542 transitions. [2022-03-21 00:08:44,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-21 00:08:44,262 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:44,262 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:08:44,263 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-21 00:08:44,263 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:44,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:44,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1177273927, now seen corresponding path program 1 times [2022-03-21 00:08:44,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:44,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1701486274] [2022-03-21 00:08:44,274 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:08:44,274 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:44,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1177273927, now seen corresponding path program 2 times [2022-03-21 00:08:44,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:44,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442672361] [2022-03-21 00:08:44,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:44,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:44,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:44,364 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-21 00:08:44,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:44,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442672361] [2022-03-21 00:08:44,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442672361] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:44,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:44,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:44,365 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:44,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1701486274] [2022-03-21 00:08:44,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1701486274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:44,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:44,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:44,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508553279] [2022-03-21 00:08:44,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:44,365 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:44,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:44,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:44,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:44,366 INFO L87 Difference]: Start difference. First operand 346 states and 542 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:46,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:46,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:46,771 INFO L93 Difference]: Finished difference Result 683 states and 1077 transitions. [2022-03-21 00:08:46,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:46,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-21 00:08:46,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:46,773 INFO L225 Difference]: With dead ends: 683 [2022-03-21 00:08:46,773 INFO L226 Difference]: Without dead ends: 363 [2022-03-21 00:08:46,774 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:46,775 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 36 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:46,775 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 577 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 407 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:08:46,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-03-21 00:08:46,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 346. [2022-03-21 00:08:46,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.5747800586510263) internal successors, (537), 341 states have internal predecessors, (537), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:46,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 541 transitions. [2022-03-21 00:08:46,787 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 541 transitions. Word has length 119 [2022-03-21 00:08:46,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:46,788 INFO L478 AbstractCegarLoop]: Abstraction has 346 states and 541 transitions. [2022-03-21 00:08:46,788 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:46,788 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 541 transitions. [2022-03-21 00:08:46,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-21 00:08:46,789 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:46,789 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-21 00:08:46,789 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-21 00:08:46,789 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:46,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:46,789 INFO L85 PathProgramCache]: Analyzing trace with hash -963750238, now seen corresponding path program 1 times [2022-03-21 00:08:46,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:46,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [267160673] [2022-03-21 00:08:46,805 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:08:46,805 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:46,805 INFO L85 PathProgramCache]: Analyzing trace with hash -963750238, now seen corresponding path program 2 times [2022-03-21 00:08:46,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:46,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161824557] [2022-03-21 00:08:46,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:46,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:46,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-21 00:08:46,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:46,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161824557] [2022-03-21 00:08:46,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161824557] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:46,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:46,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:46,900 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:46,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [267160673] [2022-03-21 00:08:46,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [267160673] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:46,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:46,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:46,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896457345] [2022-03-21 00:08:46,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:46,901 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:46,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:46,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:46,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:46,902 INFO L87 Difference]: Start difference. First operand 346 states and 541 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:48,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:50,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:52,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:53,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:53,394 INFO L93 Difference]: Finished difference Result 673 states and 1062 transitions. [2022-03-21 00:08:53,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:53,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2022-03-21 00:08:53,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:53,396 INFO L225 Difference]: With dead ends: 673 [2022-03-21 00:08:53,396 INFO L226 Difference]: Without dead ends: 353 [2022-03-21 00:08:53,397 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:53,397 INFO L913 BasicCegarLoop]: 228 mSDtfsCounter, 26 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:53,398 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 591 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 395 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-21 00:08:53,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-03-21 00:08:53,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 346. [2022-03-21 00:08:53,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.5718475073313782) internal successors, (536), 341 states have internal predecessors, (536), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:53,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 540 transitions. [2022-03-21 00:08:53,449 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 540 transitions. Word has length 121 [2022-03-21 00:08:53,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:53,450 INFO L478 AbstractCegarLoop]: Abstraction has 346 states and 540 transitions. [2022-03-21 00:08:53,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:53,450 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 540 transitions. [2022-03-21 00:08:53,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-21 00:08:53,451 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:53,451 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, 1, 1, 1] [2022-03-21 00:08:53,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-21 00:08:53,451 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:53,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:53,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1226484090, now seen corresponding path program 1 times [2022-03-21 00:08:53,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:53,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [15899991] [2022-03-21 00:08:53,462 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:08:53,462 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:53,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1226484090, now seen corresponding path program 2 times [2022-03-21 00:08:53,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:53,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861880337] [2022-03-21 00:08:53,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:53,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:53,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:53,557 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-21 00:08:53,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:53,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861880337] [2022-03-21 00:08:53,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861880337] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:53,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:53,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:53,558 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:53,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [15899991] [2022-03-21 00:08:53,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [15899991] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:53,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:53,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:53,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562678254] [2022-03-21 00:08:53,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:53,559 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:53,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:53,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:53,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:53,559 INFO L87 Difference]: Start difference. First operand 346 states and 540 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:56,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:58,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:58,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:58,797 INFO L93 Difference]: Finished difference Result 791 states and 1241 transitions. [2022-03-21 00:08:58,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:58,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-21 00:08:58,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:58,799 INFO L225 Difference]: With dead ends: 791 [2022-03-21 00:08:58,799 INFO L226 Difference]: Without dead ends: 471 [2022-03-21 00:08:58,800 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:58,800 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 137 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:58,800 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 412 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-21 00:08:58,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-03-21 00:08:58,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 383. [2022-03-21 00:08:58,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.5767195767195767) internal successors, (596), 378 states have internal predecessors, (596), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:58,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 600 transitions. [2022-03-21 00:08:58,816 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 600 transitions. Word has length 125 [2022-03-21 00:08:58,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:58,816 INFO L478 AbstractCegarLoop]: Abstraction has 383 states and 600 transitions. [2022-03-21 00:08:58,816 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:58,816 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 600 transitions. [2022-03-21 00:08:58,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-21 00:08:58,817 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:58,817 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, 1, 1, 1] [2022-03-21 00:08:58,817 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-21 00:08:58,817 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:58,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:58,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1120216922, now seen corresponding path program 1 times [2022-03-21 00:08:58,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:58,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2113243658] [2022-03-21 00:08:58,828 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:08:58,828 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:58,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1120216922, now seen corresponding path program 2 times [2022-03-21 00:08:58,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:58,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002361523] [2022-03-21 00:08:58,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:58,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:58,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:58,921 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-21 00:08:58,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:58,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002361523] [2022-03-21 00:08:58,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002361523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:58,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:58,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:58,921 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:58,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2113243658] [2022-03-21 00:08:58,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2113243658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:58,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:58,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:58,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134097358] [2022-03-21 00:08:58,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:58,922 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:58,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:58,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:58,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:58,923 INFO L87 Difference]: Start difference. First operand 383 states and 600 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:00,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:02,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:05,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:05,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:05,840 INFO L93 Difference]: Finished difference Result 836 states and 1316 transitions. [2022-03-21 00:09:05,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:05,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-03-21 00:09:05,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:05,842 INFO L225 Difference]: With dead ends: 836 [2022-03-21 00:09:05,842 INFO L226 Difference]: Without dead ends: 479 [2022-03-21 00:09:05,843 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:05,843 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 87 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:05,844 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 543 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 523 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-21 00:09:05,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-03-21 00:09:05,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 423. [2022-03-21 00:09:05,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 418 states have (on average 1.5789473684210527) internal successors, (660), 418 states have internal predecessors, (660), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:05,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 664 transitions. [2022-03-21 00:09:05,861 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 664 transitions. Word has length 126 [2022-03-21 00:09:05,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:05,861 INFO L478 AbstractCegarLoop]: Abstraction has 423 states and 664 transitions. [2022-03-21 00:09:05,861 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:05,861 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 664 transitions. [2022-03-21 00:09:05,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-21 00:09:05,862 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:05,862 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, 1, 1, 1] [2022-03-21 00:09:05,862 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-21 00:09:05,862 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:05,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:05,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1959250584, now seen corresponding path program 1 times [2022-03-21 00:09:05,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:05,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1653526764] [2022-03-21 00:09:05,873 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:09:05,873 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:05,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1959250584, now seen corresponding path program 2 times [2022-03-21 00:09:05,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:05,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645771260] [2022-03-21 00:09:05,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:05,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:06,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:06,008 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-21 00:09:06,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:06,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645771260] [2022-03-21 00:09:06,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645771260] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:06,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:06,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:06,009 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:06,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1653526764] [2022-03-21 00:09:06,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1653526764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:06,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:06,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:06,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874135826] [2022-03-21 00:09:06,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:06,011 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:09:06,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:06,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:09:06,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:09:06,011 INFO L87 Difference]: Start difference. First operand 423 states and 664 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:07,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:08,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:09,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:09,758 INFO L93 Difference]: Finished difference Result 866 states and 1365 transitions. [2022-03-21 00:09:09,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:09,759 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 126 [2022-03-21 00:09:09,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:09,760 INFO L225 Difference]: With dead ends: 866 [2022-03-21 00:09:09,760 INFO L226 Difference]: Without dead ends: 469 [2022-03-21 00:09:09,761 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:09,761 INFO L913 BasicCegarLoop]: 267 mSDtfsCounter, 36 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:09,761 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 669 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-21 00:09:09,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-03-21 00:09:09,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 447. [2022-03-21 00:09:09,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 442 states have (on average 1.5746606334841629) internal successors, (696), 442 states have internal predecessors, (696), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:09,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 700 transitions. [2022-03-21 00:09:09,780 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 700 transitions. Word has length 126 [2022-03-21 00:09:09,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:09,780 INFO L478 AbstractCegarLoop]: Abstraction has 447 states and 700 transitions. [2022-03-21 00:09:09,780 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:09,780 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 700 transitions. [2022-03-21 00:09:09,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-21 00:09:09,781 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:09,781 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, 1] [2022-03-21 00:09:09,781 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-21 00:09:09,781 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:09,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:09,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1651767948, now seen corresponding path program 1 times [2022-03-21 00:09:09,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:09,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [204137655] [2022-03-21 00:09:09,795 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:09:09,795 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:09,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1651767948, now seen corresponding path program 2 times [2022-03-21 00:09:09,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:09,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285736021] [2022-03-21 00:09:09,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:09,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:09,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:09,932 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-21 00:09:09,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:09,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285736021] [2022-03-21 00:09:09,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285736021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:09,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:09,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:09,932 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:09,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [204137655] [2022-03-21 00:09:09,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [204137655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:09,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:09,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:09,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418343036] [2022-03-21 00:09:09,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:09,933 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:09:09,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:09,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:09:09,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:09:09,933 INFO L87 Difference]: Start difference. First operand 447 states and 700 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) [2022-03-21 00:09:12,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:14,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:14,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:14,888 INFO L93 Difference]: Finished difference Result 993 states and 1560 transitions. [2022-03-21 00:09:14,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:14,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-21 00:09:14,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:14,890 INFO L225 Difference]: With dead ends: 993 [2022-03-21 00:09:14,891 INFO L226 Difference]: Without dead ends: 572 [2022-03-21 00:09:14,891 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:14,892 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 130 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:14,892 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 413 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-21 00:09:14,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-03-21 00:09:14,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 490. [2022-03-21 00:09:14,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.579381443298969) internal successors, (766), 485 states have internal predecessors, (766), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:14,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 770 transitions. [2022-03-21 00:09:14,916 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 770 transitions. Word has length 133 [2022-03-21 00:09:14,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:14,916 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 770 transitions. [2022-03-21 00:09:14,916 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) [2022-03-21 00:09:14,916 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 770 transitions. [2022-03-21 00:09:14,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-21 00:09:14,917 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:14,917 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, 1, 1] [2022-03-21 00:09:14,917 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-21 00:09:14,917 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:14,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:14,917 INFO L85 PathProgramCache]: Analyzing trace with hash -2035276428, now seen corresponding path program 1 times [2022-03-21 00:09:14,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:14,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [879490704] [2022-03-21 00:09:14,938 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:09:14,938 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:14,938 INFO L85 PathProgramCache]: Analyzing trace with hash -2035276428, now seen corresponding path program 2 times [2022-03-21 00:09:14,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:14,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628170937] [2022-03-21 00:09:14,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:14,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:15,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:15,065 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-21 00:09:15,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:15,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628170937] [2022-03-21 00:09:15,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628170937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:15,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:15,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:15,066 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:15,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [879490704] [2022-03-21 00:09:15,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [879490704] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:15,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:15,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:15,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142477232] [2022-03-21 00:09:15,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:15,067 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:09:15,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:15,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:09:15,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:09:15,067 INFO L87 Difference]: Start difference. First operand 490 states and 770 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:16,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:18,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:21,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:22,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:22,263 INFO L93 Difference]: Finished difference Result 1039 states and 1635 transitions. [2022-03-21 00:09:22,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:22,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-21 00:09:22,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:22,265 INFO L225 Difference]: With dead ends: 1039 [2022-03-21 00:09:22,265 INFO L226 Difference]: Without dead ends: 573 [2022-03-21 00:09:22,266 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:22,266 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 131 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:22,267 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 412 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-21 00:09:22,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-03-21 00:09:22,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 492. [2022-03-21 00:09:22,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 487 states have (on average 1.5790554414784395) internal successors, (769), 487 states have internal predecessors, (769), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:22,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 773 transitions. [2022-03-21 00:09:22,296 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 773 transitions. Word has length 134 [2022-03-21 00:09:22,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:22,297 INFO L478 AbstractCegarLoop]: Abstraction has 492 states and 773 transitions. [2022-03-21 00:09:22,297 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:22,297 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 773 transitions. [2022-03-21 00:09:22,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-03-21 00:09:22,298 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:22,298 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:09:22,298 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-21 00:09:22,299 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:22,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:22,299 INFO L85 PathProgramCache]: Analyzing trace with hash 543601947, now seen corresponding path program 1 times [2022-03-21 00:09:22,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:22,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [449308180] [2022-03-21 00:09:22,312 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:09:22,313 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:22,313 INFO L85 PathProgramCache]: Analyzing trace with hash 543601947, now seen corresponding path program 2 times [2022-03-21 00:09:22,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:22,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270583796] [2022-03-21 00:09:22,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:22,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:22,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:22,444 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-21 00:09:22,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:22,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270583796] [2022-03-21 00:09:22,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270583796] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:22,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:22,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:22,444 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:22,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [449308180] [2022-03-21 00:09:22,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [449308180] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:22,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:22,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:22,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625203572] [2022-03-21 00:09:22,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:22,445 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:09:22,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:22,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:09:22,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:09:22,446 INFO L87 Difference]: Start difference. First operand 492 states and 773 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:24,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:24,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:24,945 INFO L93 Difference]: Finished difference Result 1039 states and 1634 transitions. [2022-03-21 00:09:24,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:24,945 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 142 [2022-03-21 00:09:24,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:24,947 INFO L225 Difference]: With dead ends: 1039 [2022-03-21 00:09:24,947 INFO L226 Difference]: Without dead ends: 573 [2022-03-21 00:09:24,948 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:24,948 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 159 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:24,948 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 414 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:09:24,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-03-21 00:09:24,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 492. [2022-03-21 00:09:24,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 487 states have (on average 1.5605749486652978) internal successors, (760), 487 states have internal predecessors, (760), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:24,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 764 transitions. [2022-03-21 00:09:24,972 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 764 transitions. Word has length 142 [2022-03-21 00:09:24,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:24,972 INFO L478 AbstractCegarLoop]: Abstraction has 492 states and 764 transitions. [2022-03-21 00:09:24,972 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:24,972 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 764 transitions. [2022-03-21 00:09:24,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-21 00:09:24,973 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:24,973 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:09:24,973 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-21 00:09:24,973 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:24,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:24,973 INFO L85 PathProgramCache]: Analyzing trace with hash -992629600, now seen corresponding path program 1 times [2022-03-21 00:09:24,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:24,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [208093205] [2022-03-21 00:09:24,987 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:09:24,987 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:24,987 INFO L85 PathProgramCache]: Analyzing trace with hash -992629600, now seen corresponding path program 2 times [2022-03-21 00:09:24,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:24,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976568927] [2022-03-21 00:09:24,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:24,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:25,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:25,078 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-21 00:09:25,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:25,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976568927] [2022-03-21 00:09:25,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976568927] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:25,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:25,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:25,078 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:25,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [208093205] [2022-03-21 00:09:25,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [208093205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:25,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:25,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:25,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081675909] [2022-03-21 00:09:25,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:25,079 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:09:25,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:25,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:09:25,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:09:25,079 INFO L87 Difference]: Start difference. First operand 492 states and 764 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:26,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:27,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:29,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:29,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:29,953 INFO L93 Difference]: Finished difference Result 1029 states and 1603 transitions. [2022-03-21 00:09:29,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:29,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-21 00:09:29,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:29,955 INFO L225 Difference]: With dead ends: 1029 [2022-03-21 00:09:29,955 INFO L226 Difference]: Without dead ends: 563 [2022-03-21 00:09:29,956 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:29,956 INFO L913 BasicCegarLoop]: 166 mSDtfsCounter, 149 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:29,956 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 462 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-03-21 00:09:29,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-03-21 00:09:29,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 492. [2022-03-21 00:09:29,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 487 states have (on average 1.542094455852156) internal successors, (751), 487 states have internal predecessors, (751), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:29,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 755 transitions. [2022-03-21 00:09:29,981 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 755 transitions. Word has length 144 [2022-03-21 00:09:29,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:29,981 INFO L478 AbstractCegarLoop]: Abstraction has 492 states and 755 transitions. [2022-03-21 00:09:29,981 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:29,981 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 755 transitions. [2022-03-21 00:09:29,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-21 00:09:29,982 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:29,982 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, 1, 1] [2022-03-21 00:09:29,983 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-21 00:09:29,983 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:29,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:29,984 INFO L85 PathProgramCache]: Analyzing trace with hash -256190392, now seen corresponding path program 1 times [2022-03-21 00:09:29,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:29,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [269548947] [2022-03-21 00:09:29,996 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:09:29,996 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:29,996 INFO L85 PathProgramCache]: Analyzing trace with hash -256190392, now seen corresponding path program 2 times [2022-03-21 00:09:29,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:29,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308807792] [2022-03-21 00:09:29,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:29,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:30,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:30,090 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-21 00:09:30,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:30,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308807792] [2022-03-21 00:09:30,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308807792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:30,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:30,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:30,090 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:30,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [269548947] [2022-03-21 00:09:30,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [269548947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:30,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:30,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:30,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082355798] [2022-03-21 00:09:30,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:30,091 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:09:30,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:30,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:09:30,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:09:30,091 INFO L87 Difference]: Start difference. First operand 492 states and 755 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) [2022-03-21 00:09:32,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:34,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:35,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:35,738 INFO L93 Difference]: Finished difference Result 1071 states and 1651 transitions. [2022-03-21 00:09:35,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:35,738 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 [2022-03-21 00:09:35,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:35,740 INFO L225 Difference]: With dead ends: 1071 [2022-03-21 00:09:35,740 INFO L226 Difference]: Without dead ends: 605 [2022-03-21 00:09:35,741 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:35,741 INFO L913 BasicCegarLoop]: 166 mSDtfsCounter, 133 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:35,741 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 462 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 497 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-21 00:09:35,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-03-21 00:09:35,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 522. [2022-03-21 00:09:35,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 517 states have (on average 1.5299806576402322) internal successors, (791), 517 states have internal predecessors, (791), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:35,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 795 transitions. [2022-03-21 00:09:35,796 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 795 transitions. Word has length 146 [2022-03-21 00:09:35,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:35,796 INFO L478 AbstractCegarLoop]: Abstraction has 522 states and 795 transitions. [2022-03-21 00:09:35,796 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) [2022-03-21 00:09:35,796 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 795 transitions. [2022-03-21 00:09:35,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-21 00:09:35,797 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:35,797 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, 1, 1] [2022-03-21 00:09:35,797 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-21 00:09:35,797 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:35,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:35,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1392983107, now seen corresponding path program 1 times [2022-03-21 00:09:35,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:35,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1594427384] [2022-03-21 00:09:35,833 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:09:35,833 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:35,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1392983107, now seen corresponding path program 2 times [2022-03-21 00:09:35,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:35,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351877148] [2022-03-21 00:09:35,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:35,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:35,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:35,926 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-21 00:09:35,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:35,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351877148] [2022-03-21 00:09:35,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351877148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:35,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:35,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:35,926 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:35,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1594427384] [2022-03-21 00:09:35,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1594427384] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:35,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:35,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:35,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338703211] [2022-03-21 00:09:35,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:35,928 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:09:35,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:35,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:09:35,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:09:35,929 INFO L87 Difference]: Start difference. First operand 522 states and 795 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:39,565 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 [] [2022-03-21 00:09:39,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:39,983 INFO L93 Difference]: Finished difference Result 1054 states and 1612 transitions. [2022-03-21 00:09:39,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:39,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-21 00:09:39,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:39,985 INFO L225 Difference]: With dead ends: 1054 [2022-03-21 00:09:39,985 INFO L226 Difference]: Without dead ends: 558 [2022-03-21 00:09:39,986 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:39,990 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 69 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:39,990 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 565 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-21 00:09:39,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-03-21 00:09:40,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 522. [2022-03-21 00:09:40,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 517 states have (on average 1.5280464216634428) internal successors, (790), 517 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) [2022-03-21 00:09:40,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 794 transitions. [2022-03-21 00:09:40,022 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 794 transitions. Word has length 147 [2022-03-21 00:09:40,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:40,022 INFO L478 AbstractCegarLoop]: Abstraction has 522 states and 794 transitions. [2022-03-21 00:09:40,022 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:40,022 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 794 transitions. [2022-03-21 00:09:40,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-21 00:09:40,023 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:40,023 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:09:40,023 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-21 00:09:40,024 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:40,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:40,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1401308602, now seen corresponding path program 1 times [2022-03-21 00:09:40,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:40,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [972848152] [2022-03-21 00:09:40,038 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:09:40,038 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:40,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1401308602, now seen corresponding path program 2 times [2022-03-21 00:09:40,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:40,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108845829] [2022-03-21 00:09:40,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:40,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:40,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:40,128 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-21 00:09:40,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:40,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108845829] [2022-03-21 00:09:40,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108845829] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:40,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:40,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:40,129 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:40,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [972848152] [2022-03-21 00:09:40,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [972848152] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:40,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:40,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:40,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802328418] [2022-03-21 00:09:40,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:40,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:09:40,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:40,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:09:40,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:09:40,130 INFO L87 Difference]: Start difference. First operand 522 states and 794 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:41,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:43,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:45,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:47,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:48,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:48,344 INFO L93 Difference]: Finished difference Result 1089 states and 1663 transitions. [2022-03-21 00:09:48,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:48,344 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 148 [2022-03-21 00:09:48,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:48,346 INFO L225 Difference]: With dead ends: 1089 [2022-03-21 00:09:48,346 INFO L226 Difference]: Without dead ends: 593 [2022-03-21 00:09:48,347 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:48,347 INFO L913 BasicCegarLoop]: 159 mSDtfsCounter, 139 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 51 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:48,348 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 448 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 488 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-03-21 00:09:48,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-03-21 00:09:48,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 522. [2022-03-21 00:09:48,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 517 states have (on average 1.5125725338491296) internal successors, (782), 517 states have internal predecessors, (782), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:48,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 786 transitions. [2022-03-21 00:09:48,375 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 786 transitions. Word has length 148 [2022-03-21 00:09:48,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:48,375 INFO L478 AbstractCegarLoop]: Abstraction has 522 states and 786 transitions. [2022-03-21 00:09:48,375 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:48,375 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 786 transitions. [2022-03-21 00:09:48,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-21 00:09:48,376 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:48,376 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:09:48,376 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-21 00:09:48,376 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:48,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:48,377 INFO L85 PathProgramCache]: Analyzing trace with hash -996161928, now seen corresponding path program 1 times [2022-03-21 00:09:48,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:48,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1664596140] [2022-03-21 00:09:48,390 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:09:48,390 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:48,390 INFO L85 PathProgramCache]: Analyzing trace with hash -996161928, now seen corresponding path program 2 times [2022-03-21 00:09:48,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:48,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179485329] [2022-03-21 00:09:48,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:48,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:48,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:48,477 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-21 00:09:48,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:48,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179485329] [2022-03-21 00:09:48,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179485329] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:48,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:48,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:09:48,477 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:48,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1664596140] [2022-03-21 00:09:48,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1664596140] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:48,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:48,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:09:48,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63180623] [2022-03-21 00:09:48,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:48,478 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:09:48,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:48,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:09:48,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:09:48,478 INFO L87 Difference]: Start difference. First operand 522 states and 786 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) [2022-03-21 00:09:50,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:50,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:50,870 INFO L93 Difference]: Finished difference Result 1509 states and 2292 transitions. [2022-03-21 00:09:50,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:09:50,870 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 148 [2022-03-21 00:09:50,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:50,873 INFO L225 Difference]: With dead ends: 1509 [2022-03-21 00:09:50,873 INFO L226 Difference]: Without dead ends: 1013 [2022-03-21 00:09:50,874 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:09:50,874 INFO L913 BasicCegarLoop]: 261 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:50,875 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 455 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:09:50,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2022-03-21 00:09:50,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 1011. [2022-03-21 00:09:50,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 1006 states have (on average 1.5009940357852882) internal successors, (1510), 1006 states have internal predecessors, (1510), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:50,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1514 transitions. [2022-03-21 00:09:50,928 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1514 transitions. Word has length 148 [2022-03-21 00:09:50,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:50,928 INFO L478 AbstractCegarLoop]: Abstraction has 1011 states and 1514 transitions. [2022-03-21 00:09:50,928 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) [2022-03-21 00:09:50,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1514 transitions. [2022-03-21 00:09:50,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-21 00:09:50,935 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:50,935 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:09:50,935 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-21 00:09:50,935 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:50,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:50,936 INFO L85 PathProgramCache]: Analyzing trace with hash -748015434, now seen corresponding path program 1 times [2022-03-21 00:09:50,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:50,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1587799914] [2022-03-21 00:09:50,950 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:09:50,950 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:50,950 INFO L85 PathProgramCache]: Analyzing trace with hash -748015434, now seen corresponding path program 2 times [2022-03-21 00:09:50,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:50,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686055618] [2022-03-21 00:09:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:50,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:51,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:51,045 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-21 00:09:51,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:51,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686055618] [2022-03-21 00:09:51,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686055618] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:51,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:51,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:51,045 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:51,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1587799914] [2022-03-21 00:09:51,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1587799914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:51,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:51,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:51,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743938238] [2022-03-21 00:09:51,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:51,046 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:09:51,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:51,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:09:51,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:09:51,047 INFO L87 Difference]: Start difference. First operand 1011 states and 1514 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) [2022-03-21 00:09:52,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:54,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:55,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:55,325 INFO L93 Difference]: Finished difference Result 2133 states and 3186 transitions. [2022-03-21 00:09:55,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:55,325 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 148 [2022-03-21 00:09:55,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:55,328 INFO L225 Difference]: With dead ends: 2133 [2022-03-21 00:09:55,328 INFO L226 Difference]: Without dead ends: 1148 [2022-03-21 00:09:55,329 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:55,330 INFO L913 BasicCegarLoop]: 166 mSDtfsCounter, 125 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:55,330 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 462 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-21 00:09:55,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2022-03-21 00:09:55,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 997. [2022-03-21 00:09:55,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.4939516129032258) internal successors, (1482), 992 states have internal predecessors, (1482), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:55,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1486 transitions. [2022-03-21 00:09:55,384 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1486 transitions. Word has length 148 [2022-03-21 00:09:55,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:55,384 INFO L478 AbstractCegarLoop]: Abstraction has 997 states and 1486 transitions. [2022-03-21 00:09:55,384 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) [2022-03-21 00:09:55,385 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1486 transitions. [2022-03-21 00:09:55,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-21 00:09:55,386 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:55,386 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:09:55,386 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-21 00:09:55,386 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:55,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:55,387 INFO L85 PathProgramCache]: Analyzing trace with hash 930598693, now seen corresponding path program 1 times [2022-03-21 00:09:55,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:55,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2094101885] [2022-03-21 00:09:55,402 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:09:55,403 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:55,403 INFO L85 PathProgramCache]: Analyzing trace with hash 930598693, now seen corresponding path program 2 times [2022-03-21 00:09:55,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:55,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736189751] [2022-03-21 00:09:55,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:55,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:55,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:55,492 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-21 00:09:55,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:55,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736189751] [2022-03-21 00:09:55,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736189751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:55,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:55,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:55,493 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:55,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2094101885] [2022-03-21 00:09:55,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2094101885] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:55,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:55,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:55,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939342007] [2022-03-21 00:09:55,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:55,494 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:09:55,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:55,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:09:55,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:09:55,494 INFO L87 Difference]: Start difference. First operand 997 states and 1486 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) [2022-03-21 00:09:57,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:58,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:00,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:00,266 INFO L93 Difference]: Finished difference Result 2189 states and 3256 transitions. [2022-03-21 00:10:00,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:10:00,267 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 [2022-03-21 00:10:00,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:00,270 INFO L225 Difference]: With dead ends: 2189 [2022-03-21 00:10:00,270 INFO L226 Difference]: Without dead ends: 1218 [2022-03-21 00:10:00,271 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:10:00,272 INFO L913 BasicCegarLoop]: 166 mSDtfsCounter, 134 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:00,272 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 462 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-21 00:10:00,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2022-03-21 00:10:00,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1053. [2022-03-21 00:10:00,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 1048 states have (on average 1.4790076335877862) internal successors, (1550), 1048 states have internal predecessors, (1550), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:00,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1554 transitions. [2022-03-21 00:10:00,348 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1554 transitions. Word has length 150 [2022-03-21 00:10:00,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:00,349 INFO L478 AbstractCegarLoop]: Abstraction has 1053 states and 1554 transitions. [2022-03-21 00:10:00,349 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) [2022-03-21 00:10:00,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1554 transitions. [2022-03-21 00:10:00,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-03-21 00:10:00,350 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:00,350 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:10:00,351 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-21 00:10:00,351 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:00,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:00,351 INFO L85 PathProgramCache]: Analyzing trace with hash -969973184, now seen corresponding path program 1 times [2022-03-21 00:10:00,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:00,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1246773050] [2022-03-21 00:10:00,369 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:10:00,370 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:00,370 INFO L85 PathProgramCache]: Analyzing trace with hash -969973184, now seen corresponding path program 2 times [2022-03-21 00:10:00,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:00,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756920956] [2022-03-21 00:10:00,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:00,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:00,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:00,469 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-21 00:10:00,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:00,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756920956] [2022-03-21 00:10:00,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756920956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:00,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:00,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:00,469 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:00,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1246773050] [2022-03-21 00:10:00,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1246773050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:00,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:00,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:00,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441893956] [2022-03-21 00:10:00,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:00,470 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:10:00,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:00,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:10:00,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:10:00,471 INFO L87 Difference]: Start difference. First operand 1053 states and 1554 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:01,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:03,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:05,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:06,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:07,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:07,393 INFO L93 Difference]: Finished difference Result 2149 states and 3171 transitions. [2022-03-21 00:10:07,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:10:07,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-03-21 00:10:07,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:07,397 INFO L225 Difference]: With dead ends: 2149 [2022-03-21 00:10:07,397 INFO L226 Difference]: Without dead ends: 1122 [2022-03-21 00:10:07,399 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:10:07,409 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 59 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:07,410 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 597 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-21 00:10:07,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-03-21 00:10:07,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1053. [2022-03-21 00:10:07,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 1048 states have (on average 1.4770992366412214) internal successors, (1548), 1048 states have internal predecessors, (1548), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:07,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1552 transitions. [2022-03-21 00:10:07,480 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1552 transitions. Word has length 151 [2022-03-21 00:10:07,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:07,480 INFO L478 AbstractCegarLoop]: Abstraction has 1053 states and 1552 transitions. [2022-03-21 00:10:07,480 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:07,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1552 transitions. [2022-03-21 00:10:07,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-21 00:10:07,482 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:07,482 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:10:07,482 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-21 00:10:07,482 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:07,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:07,482 INFO L85 PathProgramCache]: Analyzing trace with hash 375913326, now seen corresponding path program 1 times [2022-03-21 00:10:07,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:07,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1429032426] [2022-03-21 00:10:07,496 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:10:07,496 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:07,496 INFO L85 PathProgramCache]: Analyzing trace with hash 375913326, now seen corresponding path program 2 times [2022-03-21 00:10:07,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:07,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177788033] [2022-03-21 00:10:07,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:07,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:07,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:07,629 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-21 00:10:07,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:07,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177788033] [2022-03-21 00:10:07,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177788033] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:07,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:07,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:07,630 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:07,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1429032426] [2022-03-21 00:10:07,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1429032426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:07,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:07,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:07,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137696378] [2022-03-21 00:10:07,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:07,630 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:10:07,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:07,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:10:07,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:10:07,631 INFO L87 Difference]: Start difference. First operand 1053 states and 1552 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:08,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:10,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:12,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:14,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:14,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:14,858 INFO L93 Difference]: Finished difference Result 2149 states and 3167 transitions. [2022-03-21 00:10:14,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:10:14,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-21 00:10:14,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:14,862 INFO L225 Difference]: With dead ends: 2149 [2022-03-21 00:10:14,862 INFO L226 Difference]: Without dead ends: 1122 [2022-03-21 00:10:14,863 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:10:14,866 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 52 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:14,866 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 597 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-21 00:10:14,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-03-21 00:10:14,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1061. [2022-03-21 00:10:14,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 1056 states have (on average 1.4772727272727273) internal successors, (1560), 1056 states have internal predecessors, (1560), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:14,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1564 transitions. [2022-03-21 00:10:14,961 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1564 transitions. Word has length 158 [2022-03-21 00:10:14,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:14,961 INFO L478 AbstractCegarLoop]: Abstraction has 1061 states and 1564 transitions. [2022-03-21 00:10:14,961 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:14,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1564 transitions. [2022-03-21 00:10:14,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-21 00:10:14,964 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:14,964 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:10:14,964 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-21 00:10:14,964 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:14,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:14,964 INFO L85 PathProgramCache]: Analyzing trace with hash -142759698, now seen corresponding path program 1 times [2022-03-21 00:10:14,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:14,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [89945506] [2022-03-21 00:10:14,988 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:10:14,988 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:14,988 INFO L85 PathProgramCache]: Analyzing trace with hash -142759698, now seen corresponding path program 2 times [2022-03-21 00:10:14,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:14,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294234144] [2022-03-21 00:10:14,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:14,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:15,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:15,104 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-21 00:10:15,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:15,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294234144] [2022-03-21 00:10:15,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294234144] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:15,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:15,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:15,105 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:15,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [89945506] [2022-03-21 00:10:15,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [89945506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:15,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:15,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:15,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133219843] [2022-03-21 00:10:15,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:15,106 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:10:15,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:15,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:10:15,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:10:15,106 INFO L87 Difference]: Start difference. First operand 1061 states and 1564 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:16,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:19,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:19,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:19,567 INFO L93 Difference]: Finished difference Result 2151 states and 3170 transitions. [2022-03-21 00:10:19,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:10:19,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-03-21 00:10:19,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:19,570 INFO L225 Difference]: With dead ends: 2151 [2022-03-21 00:10:19,570 INFO L226 Difference]: Without dead ends: 1116 [2022-03-21 00:10:19,571 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:10:19,572 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 47 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:19,572 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 599 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-21 00:10:19,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2022-03-21 00:10:19,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1063. [2022-03-21 00:10:19,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 1058 states have (on average 1.4763705103969755) internal successors, (1562), 1058 states have internal predecessors, (1562), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:19,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1566 transitions. [2022-03-21 00:10:19,634 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1566 transitions. Word has length 159 [2022-03-21 00:10:19,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:19,635 INFO L478 AbstractCegarLoop]: Abstraction has 1063 states and 1566 transitions. [2022-03-21 00:10:19,635 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:19,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1566 transitions. [2022-03-21 00:10:19,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-03-21 00:10:19,636 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:19,637 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, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:10:19,637 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-21 00:10:19,637 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:19,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:19,637 INFO L85 PathProgramCache]: Analyzing trace with hash 805428197, now seen corresponding path program 1 times [2022-03-21 00:10:19,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:19,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [276499637] [2022-03-21 00:10:19,664 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:10:19,664 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:19,665 INFO L85 PathProgramCache]: Analyzing trace with hash 805428197, now seen corresponding path program 2 times [2022-03-21 00:10:19,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:19,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760660134] [2022-03-21 00:10:19,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:19,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:19,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:19,755 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-03-21 00:10:19,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:19,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760660134] [2022-03-21 00:10:19,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760660134] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:19,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:19,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:19,756 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:19,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [276499637] [2022-03-21 00:10:19,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [276499637] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:19,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:19,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:19,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113828620] [2022-03-21 00:10:19,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:19,756 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:10:19,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:19,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:10:19,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:10:19,757 INFO L87 Difference]: Start difference. First operand 1063 states and 1566 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:22,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:24,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:24,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:24,495 INFO L93 Difference]: Finished difference Result 2179 states and 3214 transitions. [2022-03-21 00:10:24,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:10:24,495 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 169 [2022-03-21 00:10:24,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:24,498 INFO L225 Difference]: With dead ends: 2179 [2022-03-21 00:10:24,498 INFO L226 Difference]: Without dead ends: 1142 [2022-03-21 00:10:24,500 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:10:24,500 INFO L913 BasicCegarLoop]: 260 mSDtfsCounter, 29 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:24,500 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 655 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-21 00:10:24,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-03-21 00:10:24,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1115. [2022-03-21 00:10:24,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1110 states have (on average 1.473873873873874) internal successors, (1636), 1110 states have internal predecessors, (1636), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:24,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1640 transitions. [2022-03-21 00:10:24,589 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1640 transitions. Word has length 169 [2022-03-21 00:10:24,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:24,589 INFO L478 AbstractCegarLoop]: Abstraction has 1115 states and 1640 transitions. [2022-03-21 00:10:24,590 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:24,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1640 transitions. [2022-03-21 00:10:24,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-21 00:10:24,591 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:24,592 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] [2022-03-21 00:10:24,592 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-21 00:10:24,592 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:24,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:24,592 INFO L85 PathProgramCache]: Analyzing trace with hash -377287880, now seen corresponding path program 1 times [2022-03-21 00:10:24,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:24,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [572725107] [2022-03-21 00:10:24,610 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:10:24,610 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:24,610 INFO L85 PathProgramCache]: Analyzing trace with hash -377287880, now seen corresponding path program 2 times [2022-03-21 00:10:24,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:24,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932829451] [2022-03-21 00:10:24,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:24,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:24,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:24,685 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-03-21 00:10:24,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:24,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932829451] [2022-03-21 00:10:24,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932829451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:24,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:24,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:10:24,686 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:24,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [572725107] [2022-03-21 00:10:24,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [572725107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:24,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:24,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:10:24,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922910618] [2022-03-21 00:10:24,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:24,686 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:10:24,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:24,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:10:24,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:10:24,687 INFO L87 Difference]: Start difference. First operand 1115 states and 1640 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:26,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:27,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:29,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:30,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:30,254 INFO L93 Difference]: Finished difference Result 2231 states and 3287 transitions. [2022-03-21 00:10:30,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:10:30,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 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 174 [2022-03-21 00:10:30,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:30,257 INFO L225 Difference]: With dead ends: 2231 [2022-03-21 00:10:30,257 INFO L226 Difference]: Without dead ends: 1142 [2022-03-21 00:10:30,259 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:10:30,259 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:30,259 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 439 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 293 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-21 00:10:30,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-03-21 00:10:30,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1142. [2022-03-21 00:10:30,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1137 states have (on average 1.4696569920844327) internal successors, (1671), 1137 states have internal predecessors, (1671), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1675 transitions. [2022-03-21 00:10:30,350 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1675 transitions. Word has length 174 [2022-03-21 00:10:30,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:30,350 INFO L478 AbstractCegarLoop]: Abstraction has 1142 states and 1675 transitions. [2022-03-21 00:10:30,350 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:30,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1675 transitions. [2022-03-21 00:10:30,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-21 00:10:30,352 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:30,352 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] [2022-03-21 00:10:30,352 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-21 00:10:30,352 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:30,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:30,353 INFO L85 PathProgramCache]: Analyzing trace with hash -641935370, now seen corresponding path program 1 times [2022-03-21 00:10:30,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:30,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1531729667] [2022-03-21 00:10:30,372 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:10:30,372 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:30,372 INFO L85 PathProgramCache]: Analyzing trace with hash -641935370, now seen corresponding path program 2 times [2022-03-21 00:10:30,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:30,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853161507] [2022-03-21 00:10:30,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:30,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:30,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:30,450 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-21 00:10:30,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:30,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853161507] [2022-03-21 00:10:30,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853161507] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:30,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:30,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:10:30,451 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:30,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1531729667] [2022-03-21 00:10:30,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1531729667] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:30,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:30,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:10:30,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18903975] [2022-03-21 00:10:30,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:30,452 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:10:30,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:30,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:10:30,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:10:30,452 INFO L87 Difference]: Start difference. First operand 1142 states and 1675 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:32,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:34,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:35,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:35,291 INFO L93 Difference]: Finished difference Result 2260 states and 3323 transitions. [2022-03-21 00:10:35,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:10:35,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-21 00:10:35,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:35,294 INFO L225 Difference]: With dead ends: 2260 [2022-03-21 00:10:35,294 INFO L226 Difference]: Without dead ends: 1144 [2022-03-21 00:10:35,296 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:10:35,296 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:35,296 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 418 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 279 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-21 00:10:35,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2022-03-21 00:10:35,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1144. [2022-03-21 00:10:35,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1139 states have (on average 1.4688323090430202) internal successors, (1673), 1139 states have internal predecessors, (1673), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:35,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1677 transitions. [2022-03-21 00:10:35,363 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1677 transitions. Word has length 174 [2022-03-21 00:10:35,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:35,363 INFO L478 AbstractCegarLoop]: Abstraction has 1144 states and 1677 transitions. [2022-03-21 00:10:35,363 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:35,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1677 transitions. [2022-03-21 00:10:35,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-21 00:10:35,365 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:35,365 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:10:35,365 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-21 00:10:35,365 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:35,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:35,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1467665336, now seen corresponding path program 1 times [2022-03-21 00:10:35,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:35,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1629017905] [2022-03-21 00:10:35,381 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:10:35,381 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:35,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1467665336, now seen corresponding path program 2 times [2022-03-21 00:10:35,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:35,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972343620] [2022-03-21 00:10:35,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:35,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:35,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:35,470 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-03-21 00:10:35,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:35,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972343620] [2022-03-21 00:10:35,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972343620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:35,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:35,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:35,470 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:35,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1629017905] [2022-03-21 00:10:35,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1629017905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:35,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:35,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:35,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747632382] [2022-03-21 00:10:35,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:35,471 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:10:35,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:35,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:10:35,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:10:35,471 INFO L87 Difference]: Start difference. First operand 1144 states and 1677 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) [2022-03-21 00:10:37,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:39,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:40,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:40,792 INFO L93 Difference]: Finished difference Result 2398 states and 3511 transitions. [2022-03-21 00:10:40,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:10:40,792 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 175 [2022-03-21 00:10:40,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:40,795 INFO L225 Difference]: With dead ends: 2398 [2022-03-21 00:10:40,795 INFO L226 Difference]: Without dead ends: 1282 [2022-03-21 00:10:40,797 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:10:40,797 INFO L913 BasicCegarLoop]: 168 mSDtfsCounter, 136 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 50 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:40,798 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 466 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 497 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-03-21 00:10:40,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2022-03-21 00:10:40,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1144. [2022-03-21 00:10:40,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1139 states have (on average 1.4530289727831431) internal successors, (1655), 1139 states have internal predecessors, (1655), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:40,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1659 transitions. [2022-03-21 00:10:40,868 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1659 transitions. Word has length 175 [2022-03-21 00:10:40,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:40,869 INFO L478 AbstractCegarLoop]: Abstraction has 1144 states and 1659 transitions. [2022-03-21 00:10:40,869 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) [2022-03-21 00:10:40,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1659 transitions. [2022-03-21 00:10:40,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-03-21 00:10:40,870 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:40,870 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:10:40,870 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-21 00:10:40,871 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:40,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:40,871 INFO L85 PathProgramCache]: Analyzing trace with hash -784018339, now seen corresponding path program 1 times [2022-03-21 00:10:40,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:40,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [696404956] [2022-03-21 00:10:40,887 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:10:40,887 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:40,887 INFO L85 PathProgramCache]: Analyzing trace with hash -784018339, now seen corresponding path program 2 times [2022-03-21 00:10:40,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:40,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841123569] [2022-03-21 00:10:40,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:40,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:40,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:40,976 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-03-21 00:10:40,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:40,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841123569] [2022-03-21 00:10:40,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841123569] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:40,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:40,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:40,976 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:40,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [696404956] [2022-03-21 00:10:40,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [696404956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:40,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:40,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:40,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327943977] [2022-03-21 00:10:40,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:40,977 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:10:40,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:40,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:10:40,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:10:40,979 INFO L87 Difference]: Start difference. First operand 1144 states and 1659 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:43,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:45,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:47,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:47,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:47,640 INFO L93 Difference]: Finished difference Result 2398 states and 3475 transitions. [2022-03-21 00:10:47,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:10:47,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-03-21 00:10:47,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:47,644 INFO L225 Difference]: With dead ends: 2398 [2022-03-21 00:10:47,644 INFO L226 Difference]: Without dead ends: 1282 [2022-03-21 00:10:47,645 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:10:47,646 INFO L913 BasicCegarLoop]: 166 mSDtfsCounter, 135 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:47,646 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 462 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-21 00:10:47,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2022-03-21 00:10:47,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1144. [2022-03-21 00:10:47,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1139 states have (on average 1.437225636523266) internal successors, (1637), 1139 states have internal predecessors, (1637), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:47,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1641 transitions. [2022-03-21 00:10:47,722 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1641 transitions. Word has length 176 [2022-03-21 00:10:47,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:47,722 INFO L478 AbstractCegarLoop]: Abstraction has 1144 states and 1641 transitions. [2022-03-21 00:10:47,722 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:47,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1641 transitions. [2022-03-21 00:10:47,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-03-21 00:10:47,724 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:47,724 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:10:47,724 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-21 00:10:47,724 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:47,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:47,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1248972826, now seen corresponding path program 1 times [2022-03-21 00:10:47,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:47,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [110043462] [2022-03-21 00:10:47,756 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:10:47,756 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:47,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1248972826, now seen corresponding path program 2 times [2022-03-21 00:10:47,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:47,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824332234] [2022-03-21 00:10:47,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:47,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:47,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-03-21 00:10:47,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:47,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824332234] [2022-03-21 00:10:47,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824332234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:47,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:47,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:47,866 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:47,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [110043462] [2022-03-21 00:10:47,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [110043462] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:47,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:47,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:47,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910644785] [2022-03-21 00:10:47,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:47,867 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:10:47,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:47,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:10:47,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:10:47,867 INFO L87 Difference]: Start difference. First operand 1144 states and 1641 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:49,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:51,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:52,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:54,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:54,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:54,912 INFO L93 Difference]: Finished difference Result 2310 states and 3313 transitions. [2022-03-21 00:10:54,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:10:54,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 179 [2022-03-21 00:10:54,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:54,915 INFO L225 Difference]: With dead ends: 2310 [2022-03-21 00:10:54,916 INFO L226 Difference]: Without dead ends: 1194 [2022-03-21 00:10:54,917 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:10:54,917 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 46 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:54,918 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 603 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-03-21 00:10:54,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2022-03-21 00:10:55,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1144. [2022-03-21 00:10:55,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1139 states have (on average 1.4354697102721685) internal successors, (1635), 1139 states have internal predecessors, (1635), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:55,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1639 transitions. [2022-03-21 00:10:55,021 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1639 transitions. Word has length 179 [2022-03-21 00:10:55,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:55,021 INFO L478 AbstractCegarLoop]: Abstraction has 1144 states and 1639 transitions. [2022-03-21 00:10:55,021 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:55,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1639 transitions. [2022-03-21 00:10:55,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-03-21 00:10:55,023 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:55,023 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:10:55,023 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-21 00:10:55,023 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:55,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:55,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1568712902, now seen corresponding path program 1 times [2022-03-21 00:10:55,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:55,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2058927539] [2022-03-21 00:10:55,038 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:10:55,039 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:55,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1568712902, now seen corresponding path program 2 times [2022-03-21 00:10:55,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:55,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146447443] [2022-03-21 00:10:55,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:55,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:55,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:55,129 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-03-21 00:10:55,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:55,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146447443] [2022-03-21 00:10:55,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146447443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:55,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:55,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:55,130 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:55,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2058927539] [2022-03-21 00:10:55,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2058927539] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:55,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:55,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:55,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086265380] [2022-03-21 00:10:55,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:55,131 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:10:55,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:55,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:10:55,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:10:55,131 INFO L87 Difference]: Start difference. First operand 1144 states and 1639 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) [2022-03-21 00:10:57,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:59,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:11:00,747 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 [] [2022-03-21 00:11:01,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:11:01,268 INFO L93 Difference]: Finished difference Result 2398 states and 3435 transitions. [2022-03-21 00:11:01,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:11:01,268 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 180 [2022-03-21 00:11:01,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:11:01,275 INFO L225 Difference]: With dead ends: 2398 [2022-03-21 00:11:01,275 INFO L226 Difference]: Without dead ends: 1282 [2022-03-21 00:11:01,277 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:11:01,277 INFO L913 BasicCegarLoop]: 159 mSDtfsCounter, 127 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-21 00:11:01,277 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 448 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 487 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-21 00:11:01,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2022-03-21 00:11:01,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1144. [2022-03-21 00:11:01,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1139 states have (on average 1.4266900790166812) internal successors, (1625), 1139 states have internal predecessors, (1625), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:11:01,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1629 transitions. [2022-03-21 00:11:01,356 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1629 transitions. Word has length 180 [2022-03-21 00:11:01,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:11:01,357 INFO L478 AbstractCegarLoop]: Abstraction has 1144 states and 1629 transitions. [2022-03-21 00:11:01,358 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) [2022-03-21 00:11:01,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1629 transitions. [2022-03-21 00:11:01,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-03-21 00:11:01,370 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:11:01,370 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, 1, 1, 1, 1, 1, 1] [2022-03-21 00:11:01,370 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-21 00:11:01,370 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:11:01,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:11:01,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1749142275, now seen corresponding path program 1 times [2022-03-21 00:11:01,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:11:01,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1322106219] [2022-03-21 00:11:01,419 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:11:01,420 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:11:01,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1749142275, now seen corresponding path program 2 times [2022-03-21 00:11:01,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:11:01,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081490760] [2022-03-21 00:11:01,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:11:01,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:11:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:11:01,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:11:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:11:01,770 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-21 00:11:01,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:11:01,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081490760] [2022-03-21 00:11:01,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081490760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:11:01,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:11:01,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-21 00:11:01,771 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:11:01,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1322106219] [2022-03-21 00:11:01,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1322106219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:11:01,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:11:01,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-21 00:11:01,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840039103] [2022-03-21 00:11:01,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:11:01,771 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-21 00:11:01,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:11:01,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-21 00:11:01,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-21 00:11:01,772 INFO L87 Difference]: Start difference. First operand 1144 states and 1629 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:11:03,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:11:05,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:11:07,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:11:09,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:11:10,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:11:10,483 INFO L93 Difference]: Finished difference Result 2281 states and 3250 transitions. [2022-03-21 00:11:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-21 00:11:10,483 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 180 [2022-03-21 00:11:10,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:11:10,490 INFO L225 Difference]: With dead ends: 2281 [2022-03-21 00:11:10,490 INFO L226 Difference]: Without dead ends: 1144 [2022-03-21 00:11:10,492 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-21 00:11:10,492 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 7 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-03-21 00:11:10,492 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 952 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 464 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2022-03-21 00:11:10,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2022-03-21 00:11:10,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1144. [2022-03-21 00:11:10,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1139 states have (on average 1.4258121158911325) internal successors, (1624), 1139 states have internal predecessors, (1624), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:11:10,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1628 transitions. [2022-03-21 00:11:10,589 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1628 transitions. Word has length 180 [2022-03-21 00:11:10,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:11:10,589 INFO L478 AbstractCegarLoop]: Abstraction has 1144 states and 1628 transitions. [2022-03-21 00:11:10,590 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:11:10,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1628 transitions. [2022-03-21 00:11:10,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-03-21 00:11:10,591 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:11:10,591 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, 1, 1, 1, 1, 1, 1] [2022-03-21 00:11:10,591 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-21 00:11:10,592 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:11:10,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:11:10,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1715171387, now seen corresponding path program 1 times [2022-03-21 00:11:10,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:11:10,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2049903073] [2022-03-21 00:11:10,611 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:11:10,612 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:11:10,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1715171387, now seen corresponding path program 2 times [2022-03-21 00:11:10,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:11:10,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983130158] [2022-03-21 00:11:10,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:11:10,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:11:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:11:11,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:11:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:11:11,510 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 185 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-21 00:11:11,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:11:11,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983130158] [2022-03-21 00:11:11,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983130158] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-21 00:11:11,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554938898] [2022-03-21 00:11:11,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-21 00:11:11,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-21 00:11:11,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-21 00:11:11,513 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-21 00:11:11,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-21 00:11:38,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-21 00:11:38,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-21 00:11:38,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 204 conjunts are in the unsatisfiable core [2022-03-21 00:11:38,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-21 00:11:38,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-21 00:11:38,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11573 treesize of output 2526