/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.04.i.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 01:07:57,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 01:07:57,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 01:07:57,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-07 01:07:57,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-07 01:07:57,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-07 01:07:57,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-07 01:07:57,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-07 01:07:57,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-07 01:07:57,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-07 01:07:57,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-07 01:07:57,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-07 01:07:57,755 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-07 01:07:57,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-07 01:07:57,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-07 01:07:57,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-07 01:07:57,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-07 01:07:57,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-07 01:07:57,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-07 01:07:57,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-07 01:07:57,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-07 01:07:57,778 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-07 01:07:57,789 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 01:07:57,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 01:07:57,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 01:07:57,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 01:07:57,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 01:07:57,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 01:07:57,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 01:07:57,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 01:07:57,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 01:07:57,792 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 01:07:57,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 01:07:57,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 01:07:57,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 01:07:57,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-07 01:07:57,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 01:07:57,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 01:07:57,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 01:07:57,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-07 01:07:57,794 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-07 01:07:57,794 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-07 01:07:57,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-07 01:07:57,794 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-07 01:07:57,794 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 01:07:58,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 01:07:58,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 01:07:58,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 01:07:58,028 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 01:07:58,029 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 01:07:58,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.04.i.cil.c [2022-04-07 01:07:58,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f19779dbe/c9fb0873bb3d4318a680a5474041ab3b/FLAG4f70f1676 [2022-04-07 01:07:58,666 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 01:07:58,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.04.i.cil.c [2022-04-07 01:07:58,689 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f19779dbe/c9fb0873bb3d4318a680a5474041ab3b/FLAG4f70f1676 [2022-04-07 01:07:58,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f19779dbe/c9fb0873bb3d4318a680a5474041ab3b [2022-04-07 01:07:58,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 01:07:58,922 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-07 01:07:58,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 01:07:58,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 01:07:58,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 01:07:58,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 01:07:58" (1/1) ... [2022-04-07 01:07:58,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3620e8f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:58, skipping insertion in model container [2022-04-07 01:07:58,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 01:07:58" (1/1) ... [2022-04-07 01:07:58,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 01:07:59,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 01:07:59,321 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.04.i.cil.c[72500,72513] [2022-04-07 01:07:59,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 01:07:59,339 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 01:07:59,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.04.i.cil.c[72500,72513] [2022-04-07 01:07:59,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 01:07:59,468 INFO L208 MainTranslator]: Completed translation [2022-04-07 01:07:59,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:59 WrapperNode [2022-04-07 01:07:59,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 01:07:59,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 01:07:59,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 01:07:59,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 01:07:59,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:59" (1/1) ... [2022-04-07 01:07:59,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:59" (1/1) ... [2022-04-07 01:07:59,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:59" (1/1) ... [2022-04-07 01:07:59,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:59" (1/1) ... [2022-04-07 01:07:59,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:59" (1/1) ... [2022-04-07 01:07:59,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:59" (1/1) ... [2022-04-07 01:07:59,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:59" (1/1) ... [2022-04-07 01:07:59,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 01:07:59,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 01:07:59,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 01:07:59,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 01:07:59,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:59" (1/1) ... [2022-04-07 01:07:59,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 01:07:59,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 01:07:59,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-07 01:07:59,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-07 01:07:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 01:07:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 01:07:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 01:07:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-07 01:07:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-07 01:07:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 01:07:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-07 01:07:59,694 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-07 01:07:59,694 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-07 01:07:59,694 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-07 01:07:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-07 01:07:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 01:07:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 01:07:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 01:07:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-07 01:07:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-07 01:07:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-07 01:07:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-07 01:07:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-07 01:07:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-07 01:07:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-07 01:07:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-07 01:07:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-07 01:07:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-07 01:07:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-07 01:07:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-07 01:07:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 01:07:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-07 01:07:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 01:07:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-07 01:07:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 01:07:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-07 01:07:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-07 01:07:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 01:07:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 01:07:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 01:07:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-07 01:07:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-07 01:07:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-07 01:07:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-07 01:07:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 01:07:59,866 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 01:07:59,867 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 01:08:02,227 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-07 01:08:02,598 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-07 01:08:02,598 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-07 01:08:02,616 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 01:08:02,623 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 01:08:02,623 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-07 01:08:02,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 01:08:02 BoogieIcfgContainer [2022-04-07 01:08:02,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 01:08:02,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 01:08:02,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 01:08:02,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 01:08:02,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 01:07:58" (1/3) ... [2022-04-07 01:08:02,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267bb8fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 01:08:02, skipping insertion in model container [2022-04-07 01:08:02,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:59" (2/3) ... [2022-04-07 01:08:02,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267bb8fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 01:08:02, skipping insertion in model container [2022-04-07 01:08:02,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 01:08:02" (3/3) ... [2022-04-07 01:08:02,643 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.04.i.cil.c [2022-04-07 01:08:02,648 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-07 01:08:02,648 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 01:08:02,681 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 01:08:02,686 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 [2022-04-07 01:08:02,686 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 01:08:02,700 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-07 01:08:02,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-07 01:08:02,711 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:02,712 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] [2022-04-07 01:08:02,712 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:02,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:02,721 INFO L85 PathProgramCache]: Analyzing trace with hash -2027838722, now seen corresponding path program 1 times [2022-04-07 01:08:02,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:02,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2808656] [2022-04-07 01:08:02,735 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 01:08:02,735 INFO L85 PathProgramCache]: Analyzing trace with hash -2027838722, now seen corresponding path program 2 times [2022-04-07 01:08:02,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:02,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566898188] [2022-04-07 01:08:02,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:02,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:03,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:03,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:03,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:03,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566898188] [2022-04-07 01:08:03,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566898188] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:03,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:03,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:03,312 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:03,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2808656] [2022-04-07 01:08:03,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2808656] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:03,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:03,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:03,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983605789] [2022-04-07 01:08:03,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:03,316 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:03,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:03,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:03,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:03,363 INFO L87 Difference]: Start difference. First operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 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 9.6) 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) [2022-04-07 01:08:05,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:06,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:06,124 INFO L93 Difference]: Finished difference Result 324 states and 540 transitions. [2022-04-07 01:08:06,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:06,128 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 [2022-04-07 01:08:06,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:06,136 INFO L225 Difference]: With dead ends: 324 [2022-04-07 01:08:06,137 INFO L226 Difference]: Without dead ends: 165 [2022-04-07 01:08:06,144 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:06,153 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 34 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:06,155 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 577 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-04-07 01:08:06,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-04-07 01:08:06,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-04-07 01:08:06,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5384615384615385) internal successors, (220), 143 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:06,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 224 transitions. [2022-04-07 01:08:06,213 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 224 transitions. Word has length 52 [2022-04-07 01:08:06,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:06,213 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 224 transitions. [2022-04-07 01:08:06,213 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) [2022-04-07 01:08:06,213 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 224 transitions. [2022-04-07 01:08:06,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-07 01:08:06,216 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:06,216 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:06,216 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 01:08:06,217 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:06,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:06,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1075038228, now seen corresponding path program 1 times [2022-04-07 01:08:06,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:06,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1441139364] [2022-04-07 01:08:06,227 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:06,228 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:06,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1075038228, now seen corresponding path program 2 times [2022-04-07 01:08:06,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:06,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513137356] [2022-04-07 01:08:06,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:06,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:06,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:06,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:06,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513137356] [2022-04-07 01:08:06,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513137356] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:06,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:06,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:06,466 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:06,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1441139364] [2022-04-07 01:08:06,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1441139364] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:06,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:06,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:06,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161383807] [2022-04-07 01:08:06,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:06,467 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:06,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:06,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:06,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:06,468 INFO L87 Difference]: Start difference. First operand 148 states and 224 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:08,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:08,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:08,942 INFO L93 Difference]: Finished difference Result 287 states and 431 transitions. [2022-04-07 01:08:08,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:08,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-07 01:08:08,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:08,944 INFO L225 Difference]: With dead ends: 287 [2022-04-07 01:08:08,944 INFO L226 Difference]: Without dead ends: 165 [2022-04-07 01:08:08,945 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 [2022-04-07 01:08:08,946 INFO L913 BasicCegarLoop]: 177 mSDtfsCounter, 24 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:08,946 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 453 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:08,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-04-07 01:08:08,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-04-07 01:08:08,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5314685314685315) internal successors, (219), 143 states have internal predecessors, (219), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:08,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 223 transitions. [2022-04-07 01:08:08,966 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 223 transitions. Word has length 65 [2022-04-07 01:08:08,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:08,966 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 223 transitions. [2022-04-07 01:08:08,967 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:08,967 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 223 transitions. [2022-04-07 01:08:08,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-07 01:08:08,968 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:08,968 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:08,969 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-07 01:08:08,969 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:08,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:08,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1045469476, now seen corresponding path program 1 times [2022-04-07 01:08:08,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:08,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1755575175] [2022-04-07 01:08:08,979 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:08,980 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:08,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1045469476, now seen corresponding path program 2 times [2022-04-07 01:08:08,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:08,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852375690] [2022-04-07 01:08:08,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:08,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:09,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:09,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:09,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:09,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852375690] [2022-04-07 01:08:09,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852375690] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:09,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:09,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:09,199 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:09,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1755575175] [2022-04-07 01:08:09,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1755575175] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:09,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:09,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:09,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785796506] [2022-04-07 01:08:09,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:09,202 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:09,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:09,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:09,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:09,203 INFO L87 Difference]: Start difference. First operand 148 states and 223 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:11,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:11,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:11,625 INFO L93 Difference]: Finished difference Result 286 states and 429 transitions. [2022-04-07 01:08:11,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:11,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-07 01:08:11,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:11,627 INFO L225 Difference]: With dead ends: 286 [2022-04-07 01:08:11,628 INFO L226 Difference]: Without dead ends: 164 [2022-04-07 01:08:11,628 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:11,629 INFO L913 BasicCegarLoop]: 178 mSDtfsCounter, 28 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:11,629 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 455 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:11,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-04-07 01:08:11,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 148. [2022-04-07 01:08:11,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5244755244755244) internal successors, (218), 143 states have internal predecessors, (218), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:11,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 222 transitions. [2022-04-07 01:08:11,640 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 222 transitions. Word has length 66 [2022-04-07 01:08:11,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:11,641 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 222 transitions. [2022-04-07 01:08:11,641 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:11,641 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 222 transitions. [2022-04-07 01:08:11,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-07 01:08:11,642 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:11,642 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:11,643 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-07 01:08:11,643 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:11,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:11,643 INFO L85 PathProgramCache]: Analyzing trace with hash -207458704, now seen corresponding path program 1 times [2022-04-07 01:08:11,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:11,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1061710325] [2022-04-07 01:08:11,655 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 01:08:11,655 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:11,655 INFO L85 PathProgramCache]: Analyzing trace with hash -207458704, now seen corresponding path program 2 times [2022-04-07 01:08:11,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:11,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019946378] [2022-04-07 01:08:11,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:11,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:11,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:11,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:11,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:11,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019946378] [2022-04-07 01:08:11,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019946378] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:11,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:11,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:11,795 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:11,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1061710325] [2022-04-07 01:08:11,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1061710325] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:11,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:11,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:11,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708603339] [2022-04-07 01:08:11,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:11,796 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:11,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:11,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:11,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:11,797 INFO L87 Difference]: Start difference. First operand 148 states and 222 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:13,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:14,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:14,244 INFO L93 Difference]: Finished difference Result 286 states and 428 transitions. [2022-04-07 01:08:14,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:14,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-07 01:08:14,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:14,245 INFO L225 Difference]: With dead ends: 286 [2022-04-07 01:08:14,245 INFO L226 Difference]: Without dead ends: 164 [2022-04-07 01:08:14,246 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:14,247 INFO L913 BasicCegarLoop]: 178 mSDtfsCounter, 26 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:14,247 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 455 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:14,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-04-07 01:08:14,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 148. [2022-04-07 01:08:14,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5174825174825175) internal successors, (217), 143 states have internal predecessors, (217), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:14,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 221 transitions. [2022-04-07 01:08:14,256 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 221 transitions. Word has length 66 [2022-04-07 01:08:14,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:14,256 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 221 transitions. [2022-04-07 01:08:14,256 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:14,256 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 221 transitions. [2022-04-07 01:08:14,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-07 01:08:14,257 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:14,257 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:14,257 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-07 01:08:14,258 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:14,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:14,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1867256871, now seen corresponding path program 1 times [2022-04-07 01:08:14,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:14,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1719189276] [2022-04-07 01:08:14,270 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:14,270 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:14,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1867256871, now seen corresponding path program 2 times [2022-04-07 01:08:14,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:14,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959930009] [2022-04-07 01:08:14,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:14,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:14,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:14,428 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:14,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:14,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959930009] [2022-04-07 01:08:14,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959930009] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:14,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:14,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:14,429 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:14,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1719189276] [2022-04-07 01:08:14,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1719189276] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:14,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:14,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:14,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796880984] [2022-04-07 01:08:14,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:14,431 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:14,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:14,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:14,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:14,433 INFO L87 Difference]: Start difference. First operand 148 states and 221 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:16,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:16,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:16,868 INFO L93 Difference]: Finished difference Result 284 states and 425 transitions. [2022-04-07 01:08:16,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:16,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-07 01:08:16,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:16,870 INFO L225 Difference]: With dead ends: 284 [2022-04-07 01:08:16,870 INFO L226 Difference]: Without dead ends: 162 [2022-04-07 01:08:16,871 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:16,871 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 20 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:16,872 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 459 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 344 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:16,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-04-07 01:08:16,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 148. [2022-04-07 01:08:16,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5104895104895104) internal successors, (216), 143 states have internal predecessors, (216), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:16,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 220 transitions. [2022-04-07 01:08:16,881 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 220 transitions. Word has length 66 [2022-04-07 01:08:16,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:16,881 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 220 transitions. [2022-04-07 01:08:16,881 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:16,881 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 220 transitions. [2022-04-07 01:08:16,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-07 01:08:16,882 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:16,883 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:16,883 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-07 01:08:16,883 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:16,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:16,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1927058904, now seen corresponding path program 1 times [2022-04-07 01:08:16,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:16,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1333674166] [2022-04-07 01:08:16,887 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:16,887 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:16,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1927058904, now seen corresponding path program 2 times [2022-04-07 01:08:16,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:16,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193159300] [2022-04-07 01:08:16,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:16,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:17,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:17,027 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:17,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:17,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193159300] [2022-04-07 01:08:17,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193159300] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:17,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:17,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:17,028 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:17,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1333674166] [2022-04-07 01:08:17,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1333674166] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:17,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:17,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:17,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573857642] [2022-04-07 01:08:17,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:17,029 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:17,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:17,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:17,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:17,030 INFO L87 Difference]: Start difference. First operand 148 states and 220 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:19,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:19,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:19,465 INFO L93 Difference]: Finished difference Result 283 states and 423 transitions. [2022-04-07 01:08:19,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:19,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-07 01:08:19,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:19,466 INFO L225 Difference]: With dead ends: 283 [2022-04-07 01:08:19,467 INFO L226 Difference]: Without dead ends: 161 [2022-04-07 01:08:19,467 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:19,468 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 18 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:19,468 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:19,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-04-07 01:08:19,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 148. [2022-04-07 01:08:19,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5034965034965035) internal successors, (215), 143 states have internal predecessors, (215), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:19,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 219 transitions. [2022-04-07 01:08:19,475 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 219 transitions. Word has length 66 [2022-04-07 01:08:19,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:19,476 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 219 transitions. [2022-04-07 01:08:19,476 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:19,476 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 219 transitions. [2022-04-07 01:08:19,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-07 01:08:19,477 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:19,477 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:19,477 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-07 01:08:19,477 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:19,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash 527212629, now seen corresponding path program 1 times [2022-04-07 01:08:19,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:19,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [986728842] [2022-04-07 01:08:19,482 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 01:08:19,482 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:19,483 INFO L85 PathProgramCache]: Analyzing trace with hash 527212629, now seen corresponding path program 2 times [2022-04-07 01:08:19,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:19,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533639064] [2022-04-07 01:08:19,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:19,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:19,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:19,597 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:19,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:19,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533639064] [2022-04-07 01:08:19,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533639064] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:19,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:19,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:19,598 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:19,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [986728842] [2022-04-07 01:08:19,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [986728842] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:19,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:19,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:19,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787713607] [2022-04-07 01:08:19,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:19,599 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:19,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:19,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:19,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:19,600 INFO L87 Difference]: Start difference. First operand 148 states and 219 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:21,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:22,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:22,033 INFO L93 Difference]: Finished difference Result 283 states and 422 transitions. [2022-04-07 01:08:22,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:22,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-04-07 01:08:22,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:22,036 INFO L225 Difference]: With dead ends: 283 [2022-04-07 01:08:22,036 INFO L226 Difference]: Without dead ends: 161 [2022-04-07 01:08:22,036 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:22,037 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 22 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:22,037 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:22,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-04-07 01:08:22,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 148. [2022-04-07 01:08:22,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.4965034965034965) internal successors, (214), 143 states have internal predecessors, (214), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:22,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 218 transitions. [2022-04-07 01:08:22,045 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 218 transitions. Word has length 67 [2022-04-07 01:08:22,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:22,045 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 218 transitions. [2022-04-07 01:08:22,045 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:22,045 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 218 transitions. [2022-04-07 01:08:22,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-07 01:08:22,046 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:22,046 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:22,046 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-07 01:08:22,046 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:22,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:22,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1788390677, now seen corresponding path program 1 times [2022-04-07 01:08:22,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:22,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1918437432] [2022-04-07 01:08:22,051 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 01:08:22,051 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:22,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1788390677, now seen corresponding path program 2 times [2022-04-07 01:08:22,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:22,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823818663] [2022-04-07 01:08:22,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:22,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:22,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:22,165 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:22,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:22,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823818663] [2022-04-07 01:08:22,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823818663] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:22,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:22,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:22,165 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:22,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1918437432] [2022-04-07 01:08:22,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1918437432] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:22,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:22,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:22,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816905928] [2022-04-07 01:08:22,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:22,166 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:22,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:22,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:22,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:22,167 INFO L87 Difference]: Start difference. First operand 148 states and 218 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) [2022-04-07 01:08:24,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:24,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:24,573 INFO L93 Difference]: Finished difference Result 283 states and 421 transitions. [2022-04-07 01:08:24,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:24,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-04-07 01:08:24,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:24,575 INFO L225 Difference]: With dead ends: 283 [2022-04-07 01:08:24,575 INFO L226 Difference]: Without dead ends: 161 [2022-04-07 01:08:24,575 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:24,576 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 20 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:24,576 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:24,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-04-07 01:08:24,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 148. [2022-04-07 01:08:24,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.4895104895104896) internal successors, (213), 143 states have internal predecessors, (213), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:24,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 217 transitions. [2022-04-07 01:08:24,582 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 217 transitions. Word has length 68 [2022-04-07 01:08:24,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:24,582 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 217 transitions. [2022-04-07 01:08:24,582 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) [2022-04-07 01:08:24,582 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 217 transitions. [2022-04-07 01:08:24,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-07 01:08:24,583 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:24,583 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:24,583 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-07 01:08:24,583 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:24,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:24,584 INFO L85 PathProgramCache]: Analyzing trace with hash -2103559590, now seen corresponding path program 1 times [2022-04-07 01:08:24,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:24,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [651865054] [2022-04-07 01:08:24,588 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 01:08:24,589 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:24,589 INFO L85 PathProgramCache]: Analyzing trace with hash -2103559590, now seen corresponding path program 2 times [2022-04-07 01:08:24,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:24,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059590080] [2022-04-07 01:08:24,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:24,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:24,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:24,691 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:24,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:24,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059590080] [2022-04-07 01:08:24,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059590080] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:24,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:24,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:24,692 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:24,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [651865054] [2022-04-07 01:08:24,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [651865054] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:24,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:24,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:24,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674833662] [2022-04-07 01:08:24,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:24,693 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:24,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:24,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:24,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:24,694 INFO L87 Difference]: Start difference. First operand 148 states and 217 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) [2022-04-07 01:08:26,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:27,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:27,060 INFO L93 Difference]: Finished difference Result 273 states and 407 transitions. [2022-04-07 01:08:27,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:27,060 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 69 [2022-04-07 01:08:27,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:27,062 INFO L225 Difference]: With dead ends: 273 [2022-04-07 01:08:27,062 INFO L226 Difference]: Without dead ends: 151 [2022-04-07 01:08:27,062 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:27,063 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 11 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:27,063 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 475 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-07 01:08:27,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-04-07 01:08:27,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 148. [2022-04-07 01:08:27,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.4825174825174825) internal successors, (212), 143 states have internal predecessors, (212), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:27,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 216 transitions. [2022-04-07 01:08:27,068 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 216 transitions. Word has length 69 [2022-04-07 01:08:27,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:27,068 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 216 transitions. [2022-04-07 01:08:27,068 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) [2022-04-07 01:08:27,069 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 216 transitions. [2022-04-07 01:08:27,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-07 01:08:27,069 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:27,069 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:27,069 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-07 01:08:27,070 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:27,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:27,070 INFO L85 PathProgramCache]: Analyzing trace with hash 890818627, now seen corresponding path program 1 times [2022-04-07 01:08:27,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:27,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [390183063] [2022-04-07 01:08:27,074 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:27,074 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:27,075 INFO L85 PathProgramCache]: Analyzing trace with hash 890818627, now seen corresponding path program 2 times [2022-04-07 01:08:27,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:27,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292682894] [2022-04-07 01:08:27,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:27,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:27,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:27,186 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:27,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:27,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292682894] [2022-04-07 01:08:27,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292682894] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:27,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:27,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:27,186 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:27,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [390183063] [2022-04-07 01:08:27,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [390183063] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:27,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:27,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:27,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870168568] [2022-04-07 01:08:27,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:27,187 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:27,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:27,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:27,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:27,188 INFO L87 Difference]: Start difference. First operand 148 states and 216 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) [2022-04-07 01:08:29,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:29,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:29,739 INFO L93 Difference]: Finished difference Result 383 states and 576 transitions. [2022-04-07 01:08:29,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:29,743 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 69 [2022-04-07 01:08:29,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:29,745 INFO L225 Difference]: With dead ends: 383 [2022-04-07 01:08:29,745 INFO L226 Difference]: Without dead ends: 261 [2022-04-07 01:08:29,746 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:29,746 INFO L913 BasicCegarLoop]: 107 mSDtfsCounter, 108 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:29,746 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 313 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-07 01:08:29,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-04-07 01:08:29,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 191. [2022-04-07 01:08:29,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.5698924731182795) internal successors, (292), 186 states have internal predecessors, (292), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:29,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 296 transitions. [2022-04-07 01:08:29,755 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 296 transitions. Word has length 69 [2022-04-07 01:08:29,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:29,755 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 296 transitions. [2022-04-07 01:08:29,755 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) [2022-04-07 01:08:29,755 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 296 transitions. [2022-04-07 01:08:29,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-04-07 01:08:29,756 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:29,756 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:29,756 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-07 01:08:29,757 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:29,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:29,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1838419001, now seen corresponding path program 1 times [2022-04-07 01:08:29,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:29,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1831280988] [2022-04-07 01:08:29,761 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:29,761 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:29,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1838419001, now seen corresponding path program 2 times [2022-04-07 01:08:29,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:29,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970949591] [2022-04-07 01:08:29,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:29,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:29,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:29,895 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:29,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:29,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970949591] [2022-04-07 01:08:29,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970949591] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:29,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:29,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:29,896 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:29,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1831280988] [2022-04-07 01:08:29,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1831280988] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:29,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:29,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:29,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961996262] [2022-04-07 01:08:29,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:29,896 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:29,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:29,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:29,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:29,897 INFO L87 Difference]: Start difference. First operand 191 states and 296 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) [2022-04-07 01:08:31,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:32,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:32,319 INFO L93 Difference]: Finished difference Result 399 states and 628 transitions. [2022-04-07 01:08:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:32,320 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 70 [2022-04-07 01:08:32,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:32,321 INFO L225 Difference]: With dead ends: 399 [2022-04-07 01:08:32,321 INFO L226 Difference]: Without dead ends: 234 [2022-04-07 01:08:32,322 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:32,322 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 34 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:32,322 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 473 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:32,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-04-07 01:08:32,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 213. [2022-04-07 01:08:32,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.5865384615384615) internal successors, (330), 208 states have internal predecessors, (330), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:32,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 334 transitions. [2022-04-07 01:08:32,332 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 334 transitions. Word has length 70 [2022-04-07 01:08:32,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:32,332 INFO L478 AbstractCegarLoop]: Abstraction has 213 states and 334 transitions. [2022-04-07 01:08:32,333 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) [2022-04-07 01:08:32,333 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 334 transitions. [2022-04-07 01:08:32,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-07 01:08:32,333 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:32,334 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:32,334 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-07 01:08:32,334 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:32,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:32,334 INFO L85 PathProgramCache]: Analyzing trace with hash 2025171509, now seen corresponding path program 1 times [2022-04-07 01:08:32,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:32,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [448320149] [2022-04-07 01:08:32,343 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:32,344 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:32,344 INFO L85 PathProgramCache]: Analyzing trace with hash 2025171509, now seen corresponding path program 2 times [2022-04-07 01:08:32,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:32,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482293000] [2022-04-07 01:08:32,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:32,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:32,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:32,461 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:32,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:32,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482293000] [2022-04-07 01:08:32,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482293000] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:32,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:32,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:32,461 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:32,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [448320149] [2022-04-07 01:08:32,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [448320149] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:32,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:32,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:32,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953506199] [2022-04-07 01:08:32,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:32,462 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:32,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:32,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:32,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:32,463 INFO L87 Difference]: Start difference. First operand 213 states and 334 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:34,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:34,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:34,837 INFO L93 Difference]: Finished difference Result 421 states and 665 transitions. [2022-04-07 01:08:34,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:34,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-04-07 01:08:34,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:34,839 INFO L225 Difference]: With dead ends: 421 [2022-04-07 01:08:34,839 INFO L226 Difference]: Without dead ends: 234 [2022-04-07 01:08:34,839 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:34,840 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 39 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:34,840 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 473 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:34,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-04-07 01:08:34,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 213. [2022-04-07 01:08:34,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.5817307692307692) internal successors, (329), 208 states have internal predecessors, (329), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:34,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 333 transitions. [2022-04-07 01:08:34,849 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 333 transitions. Word has length 83 [2022-04-07 01:08:34,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:34,849 INFO L478 AbstractCegarLoop]: Abstraction has 213 states and 333 transitions. [2022-04-07 01:08:34,849 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:34,849 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 333 transitions. [2022-04-07 01:08:34,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-07 01:08:34,850 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:34,850 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:34,850 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-07 01:08:34,850 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:34,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:34,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1454749477, now seen corresponding path program 1 times [2022-04-07 01:08:34,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:34,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [841318339] [2022-04-07 01:08:34,860 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:34,860 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:34,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1454749477, now seen corresponding path program 2 times [2022-04-07 01:08:34,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:34,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785478612] [2022-04-07 01:08:34,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:34,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:35,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:35,027 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-07 01:08:35,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:35,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785478612] [2022-04-07 01:08:35,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785478612] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:35,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:35,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:35,027 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:35,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [841318339] [2022-04-07 01:08:35,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [841318339] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:35,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:35,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:35,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413368860] [2022-04-07 01:08:35,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:35,028 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:35,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:35,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:35,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:35,029 INFO L87 Difference]: Start difference. First operand 213 states and 333 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:37,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:37,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:37,529 INFO L93 Difference]: Finished difference Result 429 states and 679 transitions. [2022-04-07 01:08:37,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:37,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-04-07 01:08:37,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:37,531 INFO L225 Difference]: With dead ends: 429 [2022-04-07 01:08:37,531 INFO L226 Difference]: Without dead ends: 242 [2022-04-07 01:08:37,532 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:37,532 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 22 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:37,533 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 548 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 388 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-07 01:08:37,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-04-07 01:08:37,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 229. [2022-04-07 01:08:37,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 224 states have (on average 1.5848214285714286) internal successors, (355), 224 states have internal predecessors, (355), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:37,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 359 transitions. [2022-04-07 01:08:37,541 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 359 transitions. Word has length 84 [2022-04-07 01:08:37,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:37,542 INFO L478 AbstractCegarLoop]: Abstraction has 229 states and 359 transitions. [2022-04-07 01:08:37,542 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:37,542 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 359 transitions. [2022-04-07 01:08:37,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-07 01:08:37,543 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:37,543 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:37,543 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-07 01:08:37,543 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:37,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:37,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1354545936, now seen corresponding path program 1 times [2022-04-07 01:08:37,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:37,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1439706698] [2022-04-07 01:08:37,551 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:37,551 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:37,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1354545936, now seen corresponding path program 2 times [2022-04-07 01:08:37,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:37,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424145216] [2022-04-07 01:08:37,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:37,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:37,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:37,651 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:37,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:37,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424145216] [2022-04-07 01:08:37,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424145216] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:37,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:37,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:37,652 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:37,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1439706698] [2022-04-07 01:08:37,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1439706698] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:37,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:37,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:37,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424224168] [2022-04-07 01:08:37,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:37,653 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:37,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:37,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:37,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:37,654 INFO L87 Difference]: Start difference. First operand 229 states and 359 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:39,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:40,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:40,067 INFO L93 Difference]: Finished difference Result 451 states and 713 transitions. [2022-04-07 01:08:40,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:40,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-04-07 01:08:40,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:40,069 INFO L225 Difference]: With dead ends: 451 [2022-04-07 01:08:40,069 INFO L226 Difference]: Without dead ends: 248 [2022-04-07 01:08:40,070 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:40,070 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 37 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:40,070 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 477 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:40,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-04-07 01:08:40,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 229. [2022-04-07 01:08:40,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 224 states have (on average 1.5803571428571428) internal successors, (354), 224 states have internal predecessors, (354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:40,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 358 transitions. [2022-04-07 01:08:40,079 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 358 transitions. Word has length 84 [2022-04-07 01:08:40,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:40,080 INFO L478 AbstractCegarLoop]: Abstraction has 229 states and 358 transitions. [2022-04-07 01:08:40,080 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:40,080 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 358 transitions. [2022-04-07 01:08:40,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-07 01:08:40,081 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:40,081 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:40,081 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-07 01:08:40,081 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:40,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:40,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1280749327, now seen corresponding path program 1 times [2022-04-07 01:08:40,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:40,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1295186693] [2022-04-07 01:08:40,087 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:40,087 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:40,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1280749327, now seen corresponding path program 2 times [2022-04-07 01:08:40,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:40,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208090024] [2022-04-07 01:08:40,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:40,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:40,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:40,206 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:40,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:40,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208090024] [2022-04-07 01:08:40,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208090024] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:40,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:40,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:40,207 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:40,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1295186693] [2022-04-07 01:08:40,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1295186693] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:40,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:40,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:40,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477483074] [2022-04-07 01:08:40,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:40,207 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:40,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:40,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:40,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:40,208 INFO L87 Difference]: Start difference. First operand 229 states and 358 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:42,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:42,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:42,662 INFO L93 Difference]: Finished difference Result 450 states and 710 transitions. [2022-04-07 01:08:42,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:42,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-04-07 01:08:42,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:42,664 INFO L225 Difference]: With dead ends: 450 [2022-04-07 01:08:42,664 INFO L226 Difference]: Without dead ends: 247 [2022-04-07 01:08:42,664 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:42,665 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 35 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:42,665 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 479 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:42,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-04-07 01:08:42,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 229. [2022-04-07 01:08:42,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 224 states have (on average 1.5758928571428572) internal successors, (353), 224 states have internal predecessors, (353), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:42,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 357 transitions. [2022-04-07 01:08:42,673 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 357 transitions. Word has length 84 [2022-04-07 01:08:42,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:42,673 INFO L478 AbstractCegarLoop]: Abstraction has 229 states and 357 transitions. [2022-04-07 01:08:42,673 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:42,674 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 357 transitions. [2022-04-07 01:08:42,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-07 01:08:42,674 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:42,675 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:42,675 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-07 01:08:42,675 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:42,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:42,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1669457340, now seen corresponding path program 1 times [2022-04-07 01:08:42,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:42,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1109581348] [2022-04-07 01:08:42,682 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:42,683 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:42,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1669457340, now seen corresponding path program 2 times [2022-04-07 01:08:42,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:42,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985700908] [2022-04-07 01:08:42,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:42,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:42,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:42,833 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-07 01:08:42,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:42,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985700908] [2022-04-07 01:08:42,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985700908] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:42,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:42,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 01:08:42,835 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:42,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1109581348] [2022-04-07 01:08:42,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1109581348] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:42,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:42,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 01:08:42,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774638285] [2022-04-07 01:08:42,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:42,836 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 01:08:42,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:42,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 01:08:42,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:42,836 INFO L87 Difference]: Start difference. First operand 229 states and 357 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:44,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:45,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:45,222 INFO L93 Difference]: Finished difference Result 441 states and 696 transitions. [2022-04-07 01:08:45,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 01:08:45,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 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 85 [2022-04-07 01:08:45,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:45,224 INFO L225 Difference]: With dead ends: 441 [2022-04-07 01:08:45,224 INFO L226 Difference]: Without dead ends: 238 [2022-04-07 01:08:45,225 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-07 01:08:45,225 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 3 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:45,225 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 593 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 421 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:45,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-04-07 01:08:45,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2022-04-07 01:08:45,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 233 states have (on average 1.5622317596566524) internal successors, (364), 233 states have internal predecessors, (364), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:45,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 368 transitions. [2022-04-07 01:08:45,234 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 368 transitions. Word has length 85 [2022-04-07 01:08:45,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:45,234 INFO L478 AbstractCegarLoop]: Abstraction has 238 states and 368 transitions. [2022-04-07 01:08:45,234 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:45,234 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 368 transitions. [2022-04-07 01:08:45,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-07 01:08:45,235 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:45,235 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:45,235 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-07 01:08:45,236 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:45,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:45,236 INFO L85 PathProgramCache]: Analyzing trace with hash 500010200, now seen corresponding path program 1 times [2022-04-07 01:08:45,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:45,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2101431924] [2022-04-07 01:08:45,244 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:45,244 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:45,244 INFO L85 PathProgramCache]: Analyzing trace with hash 500010200, now seen corresponding path program 2 times [2022-04-07 01:08:45,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:45,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084898178] [2022-04-07 01:08:45,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:45,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:45,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:45,343 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:45,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:45,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084898178] [2022-04-07 01:08:45,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084898178] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:45,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:45,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:45,344 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:45,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2101431924] [2022-04-07 01:08:45,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2101431924] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:45,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:45,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:45,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794319201] [2022-04-07 01:08:45,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:45,345 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:45,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:45,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:45,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:45,346 INFO L87 Difference]: Start difference. First operand 238 states and 368 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:47,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:47,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:47,875 INFO L93 Difference]: Finished difference Result 572 states and 891 transitions. [2022-04-07 01:08:47,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:47,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-04-07 01:08:47,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:47,877 INFO L225 Difference]: With dead ends: 572 [2022-04-07 01:08:47,877 INFO L226 Difference]: Without dead ends: 360 [2022-04-07 01:08:47,878 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:47,879 INFO L913 BasicCegarLoop]: 108 mSDtfsCounter, 140 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:47,879 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 314 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-07 01:08:47,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-04-07 01:08:47,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 250. [2022-04-07 01:08:47,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.546938775510204) internal successors, (379), 245 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:47,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 383 transitions. [2022-04-07 01:08:47,890 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 383 transitions. Word has length 85 [2022-04-07 01:08:47,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:47,891 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 383 transitions. [2022-04-07 01:08:47,891 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:47,891 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 383 transitions. [2022-04-07 01:08:47,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-04-07 01:08:47,892 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:47,892 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:47,892 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-07 01:08:47,892 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:47,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:47,892 INFO L85 PathProgramCache]: Analyzing trace with hash -989381741, now seen corresponding path program 1 times [2022-04-07 01:08:47,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:47,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1246974308] [2022-04-07 01:08:47,901 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:47,901 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:47,901 INFO L85 PathProgramCache]: Analyzing trace with hash -989381741, now seen corresponding path program 2 times [2022-04-07 01:08:47,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:47,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494423271] [2022-04-07 01:08:47,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:47,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:48,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:48,026 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:48,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:48,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494423271] [2022-04-07 01:08:48,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494423271] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:48,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:48,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:48,026 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:48,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1246974308] [2022-04-07 01:08:48,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1246974308] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:48,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:48,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:48,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124780291] [2022-04-07 01:08:48,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:48,027 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:48,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:48,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:48,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:48,028 INFO L87 Difference]: Start difference. First operand 250 states and 383 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) [2022-04-07 01:08:50,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:50,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:50,378 INFO L93 Difference]: Finished difference Result 501 states and 771 transitions. [2022-04-07 01:08:50,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:50,379 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 86 [2022-04-07 01:08:50,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:50,380 INFO L225 Difference]: With dead ends: 501 [2022-04-07 01:08:50,380 INFO L226 Difference]: Without dead ends: 277 [2022-04-07 01:08:50,381 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:50,381 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 38 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:50,381 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 479 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-07 01:08:50,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-04-07 01:08:50,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 250. [2022-04-07 01:08:50,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.542857142857143) internal successors, (378), 245 states have internal predecessors, (378), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:50,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 382 transitions. [2022-04-07 01:08:50,392 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 382 transitions. Word has length 86 [2022-04-07 01:08:50,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:50,392 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 382 transitions. [2022-04-07 01:08:50,392 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) [2022-04-07 01:08:50,393 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 382 transitions. [2022-04-07 01:08:50,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-04-07 01:08:50,393 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:50,393 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:50,394 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-07 01:08:50,394 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:50,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:50,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1455094013, now seen corresponding path program 1 times [2022-04-07 01:08:50,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:50,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [217132985] [2022-04-07 01:08:50,405 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:50,405 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:50,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1455094013, now seen corresponding path program 2 times [2022-04-07 01:08:50,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:50,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245023278] [2022-04-07 01:08:50,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:50,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:50,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:50,523 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:50,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:50,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245023278] [2022-04-07 01:08:50,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245023278] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:50,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:50,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:50,524 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:50,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [217132985] [2022-04-07 01:08:50,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [217132985] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:50,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:50,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:50,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104436117] [2022-04-07 01:08:50,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:50,525 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:50,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:50,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:50,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:50,525 INFO L87 Difference]: Start difference. First operand 250 states and 382 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) [2022-04-07 01:08:52,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:53,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:53,046 INFO L93 Difference]: Finished difference Result 584 states and 900 transitions. [2022-04-07 01:08:53,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:53,046 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 87 [2022-04-07 01:08:53,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:53,048 INFO L225 Difference]: With dead ends: 584 [2022-04-07 01:08:53,048 INFO L226 Difference]: Without dead ends: 360 [2022-04-07 01:08:53,049 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:53,049 INFO L913 BasicCegarLoop]: 108 mSDtfsCounter, 137 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:53,049 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 314 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-07 01:08:53,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-04-07 01:08:53,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 252. [2022-04-07 01:08:53,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5303643724696356) internal successors, (378), 247 states have internal predecessors, (378), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 382 transitions. [2022-04-07 01:08:53,067 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 382 transitions. Word has length 87 [2022-04-07 01:08:53,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:53,067 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 382 transitions. [2022-04-07 01:08:53,068 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) [2022-04-07 01:08:53,068 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 382 transitions. [2022-04-07 01:08:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-04-07 01:08:53,069 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:53,069 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:53,069 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-07 01:08:53,069 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:53,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:53,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1295416728, now seen corresponding path program 1 times [2022-04-07 01:08:53,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:53,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [826921921] [2022-04-07 01:08:53,082 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:53,082 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:53,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1295416728, now seen corresponding path program 2 times [2022-04-07 01:08:53,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:53,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762830741] [2022-04-07 01:08:53,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:53,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:53,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:53,218 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:53,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:53,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762830741] [2022-04-07 01:08:53,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762830741] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:53,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:53,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:53,218 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:53,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [826921921] [2022-04-07 01:08:53,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [826921921] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:53,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:53,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:53,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536564428] [2022-04-07 01:08:53,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:53,219 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:53,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:53,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:53,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:53,220 INFO L87 Difference]: Start difference. First operand 252 states and 382 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) [2022-04-07 01:08:55,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:55,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:55,677 INFO L93 Difference]: Finished difference Result 586 states and 896 transitions. [2022-04-07 01:08:55,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:55,677 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 88 [2022-04-07 01:08:55,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:55,679 INFO L225 Difference]: With dead ends: 586 [2022-04-07 01:08:55,679 INFO L226 Difference]: Without dead ends: 360 [2022-04-07 01:08:55,679 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:55,680 INFO L913 BasicCegarLoop]: 108 mSDtfsCounter, 135 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:55,680 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 314 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:55,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-04-07 01:08:55,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 253. [2022-04-07 01:08:55,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 248 states have (on average 1.5161290322580645) internal successors, (376), 248 states have internal predecessors, (376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:55,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 380 transitions. [2022-04-07 01:08:55,692 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 380 transitions. Word has length 88 [2022-04-07 01:08:55,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:55,692 INFO L478 AbstractCegarLoop]: Abstraction has 253 states and 380 transitions. [2022-04-07 01:08:55,692 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) [2022-04-07 01:08:55,692 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 380 transitions. [2022-04-07 01:08:55,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-04-07 01:08:55,693 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:55,693 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:55,693 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-07 01:08:55,693 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:55,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:55,694 INFO L85 PathProgramCache]: Analyzing trace with hash 16034624, now seen corresponding path program 1 times [2022-04-07 01:08:55,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:55,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [466523371] [2022-04-07 01:08:55,701 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:55,701 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:55,701 INFO L85 PathProgramCache]: Analyzing trace with hash 16034624, now seen corresponding path program 2 times [2022-04-07 01:08:55,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:55,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000804580] [2022-04-07 01:08:55,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:55,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:55,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:55,807 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-07 01:08:55,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:55,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000804580] [2022-04-07 01:08:55,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000804580] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:55,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:55,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:55,808 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:55,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [466523371] [2022-04-07 01:08:55,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [466523371] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:55,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:55,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:55,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545533255] [2022-04-07 01:08:55,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:55,809 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:55,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:55,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:55,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:55,809 INFO L87 Difference]: Start difference. First operand 253 states and 380 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:57,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:58,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:58,296 INFO L93 Difference]: Finished difference Result 584 states and 885 transitions. [2022-04-07 01:08:58,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:58,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-04-07 01:08:58,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:58,298 INFO L225 Difference]: With dead ends: 584 [2022-04-07 01:08:58,299 INFO L226 Difference]: Without dead ends: 357 [2022-04-07 01:08:58,299 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:58,300 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 73 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:58,300 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 469 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 527 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-07 01:08:58,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-04-07 01:08:58,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 296. [2022-04-07 01:08:58,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 291 states have (on average 1.5498281786941581) internal successors, (451), 291 states have internal predecessors, (451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:58,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 455 transitions. [2022-04-07 01:08:58,314 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 455 transitions. Word has length 92 [2022-04-07 01:08:58,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:58,314 INFO L478 AbstractCegarLoop]: Abstraction has 296 states and 455 transitions. [2022-04-07 01:08:58,314 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:58,314 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 455 transitions. [2022-04-07 01:08:58,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-04-07 01:08:58,315 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:58,315 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:58,315 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-07 01:08:58,315 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:58,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:58,316 INFO L85 PathProgramCache]: Analyzing trace with hash -2033353218, now seen corresponding path program 1 times [2022-04-07 01:08:58,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:58,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [373561681] [2022-04-07 01:08:58,323 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:58,323 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:58,323 INFO L85 PathProgramCache]: Analyzing trace with hash -2033353218, now seen corresponding path program 2 times [2022-04-07 01:08:58,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:58,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817376527] [2022-04-07 01:08:58,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:58,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:58,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:58,459 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-07 01:08:58,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:58,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817376527] [2022-04-07 01:08:58,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817376527] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:58,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:58,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:58,461 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:58,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [373561681] [2022-04-07 01:08:58,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [373561681] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:58,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:58,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:58,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001458820] [2022-04-07 01:08:58,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:58,461 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:58,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:58,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:58,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:58,462 INFO L87 Difference]: Start difference. First operand 296 states and 455 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:09:00,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:09:00,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:09:00,925 INFO L93 Difference]: Finished difference Result 673 states and 1040 transitions. [2022-04-07 01:09:00,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:09:00,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-04-07 01:09:00,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:09:00,928 INFO L225 Difference]: With dead ends: 673 [2022-04-07 01:09:00,928 INFO L226 Difference]: Without dead ends: 401 [2022-04-07 01:09:00,928 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:09:00,929 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 106 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:09:00,929 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 324 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:09:00,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-04-07 01:09:00,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 323. [2022-04-07 01:09:00,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 318 states have (on average 1.5849056603773586) internal successors, (504), 318 states have internal predecessors, (504), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:09:00,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 508 transitions. [2022-04-07 01:09:00,944 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 508 transitions. Word has length 92 [2022-04-07 01:09:00,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:09:00,945 INFO L478 AbstractCegarLoop]: Abstraction has 323 states and 508 transitions. [2022-04-07 01:09:00,945 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:09:00,945 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 508 transitions. [2022-04-07 01:09:00,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-04-07 01:09:00,946 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:09:00,946 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:09:00,946 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-07 01:09:00,946 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:09:00,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:09:00,947 INFO L85 PathProgramCache]: Analyzing trace with hash -70912791, now seen corresponding path program 1 times [2022-04-07 01:09:00,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:00,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1021179526] [2022-04-07 01:09:00,958 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:09:00,958 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:09:00,959 INFO L85 PathProgramCache]: Analyzing trace with hash -70912791, now seen corresponding path program 2 times [2022-04-07 01:09:00,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:09:00,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103916360] [2022-04-07 01:09:00,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:09:00,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:09:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:09:01,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:09:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:09:01,070 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-07 01:09:01,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:09:01,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103916360] [2022-04-07 01:09:01,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103916360] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:09:01,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:09:01,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:09:01,072 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:09:01,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1021179526] [2022-04-07 01:09:01,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1021179526] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:09:01,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:09:01,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:09:01,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005294128] [2022-04-07 01:09:01,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:09:01,073 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:09:01,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:01,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:09:01,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:09:01,073 INFO L87 Difference]: Start difference. First operand 323 states and 508 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:09:03,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:09:03,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:09:03,532 INFO L93 Difference]: Finished difference Result 737 states and 1160 transitions. [2022-04-07 01:09:03,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:09:03,533 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 120 [2022-04-07 01:09:03,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:09:03,535 INFO L225 Difference]: With dead ends: 737 [2022-04-07 01:09:03,535 INFO L226 Difference]: Without dead ends: 440 [2022-04-07 01:09:03,536 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:09:03,536 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 114 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:09:03,536 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 340 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:09:03,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-04-07 01:09:03,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 355. [2022-04-07 01:09:03,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.5914285714285714) internal successors, (557), 350 states have internal predecessors, (557), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:09:03,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 561 transitions. [2022-04-07 01:09:03,555 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 561 transitions. Word has length 120 [2022-04-07 01:09:03,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:09:03,555 INFO L478 AbstractCegarLoop]: Abstraction has 355 states and 561 transitions. [2022-04-07 01:09:03,555 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:09:03,555 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 561 transitions. [2022-04-07 01:09:03,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-04-07 01:09:03,556 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:09:03,556 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:09:03,557 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-07 01:09:03,557 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:09:03,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:09:03,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1899791356, now seen corresponding path program 1 times [2022-04-07 01:09:03,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:03,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1692065972] [2022-04-07 01:09:03,584 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:09:03,585 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:09:03,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1899791356, now seen corresponding path program 2 times [2022-04-07 01:09:03,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:09:03,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351598390] [2022-04-07 01:09:03,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:09:03,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:09:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:09:03,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:09:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:09:03,692 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-04-07 01:09:03,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:09:03,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351598390] [2022-04-07 01:09:03,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351598390] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:09:03,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:09:03,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:09:03,693 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:09:03,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1692065972] [2022-04-07 01:09:03,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1692065972] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:09:03,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:09:03,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:09:03,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252835164] [2022-04-07 01:09:03,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:09:03,693 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:09:03,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:03,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:09:03,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:09:03,694 INFO L87 Difference]: Start difference. First operand 355 states and 561 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) [2022-04-07 01:09:05,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:09:06,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:09:06,044 INFO L93 Difference]: Finished difference Result 691 states and 1102 transitions. [2022-04-07 01:09:06,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:09:06,045 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 125 [2022-04-07 01:09:06,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:09:06,046 INFO L225 Difference]: With dead ends: 691 [2022-04-07 01:09:06,046 INFO L226 Difference]: Without dead ends: 362 [2022-04-07 01:09:06,047 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:09:06,048 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 30 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-07 01:09:06,048 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 495 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-07 01:09:06,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-04-07 01:09:06,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 355. [2022-04-07 01:09:06,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.5885714285714285) internal successors, (556), 350 states have internal predecessors, (556), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:09:06,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 560 transitions. [2022-04-07 01:09:06,065 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 560 transitions. Word has length 125 [2022-04-07 01:09:06,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:09:06,066 INFO L478 AbstractCegarLoop]: Abstraction has 355 states and 560 transitions. [2022-04-07 01:09:06,066 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) [2022-04-07 01:09:06,066 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 560 transitions. [2022-04-07 01:09:06,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-07 01:09:06,067 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:09:06,067 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, 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] [2022-04-07 01:09:06,067 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-07 01:09:06,067 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:09:06,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:09:06,068 INFO L85 PathProgramCache]: Analyzing trace with hash 716472108, now seen corresponding path program 1 times [2022-04-07 01:09:06,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:06,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [591066511] [2022-04-07 01:09:06,085 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:09:06,085 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:09:06,085 INFO L85 PathProgramCache]: Analyzing trace with hash 716472108, now seen corresponding path program 2 times [2022-04-07 01:09:06,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:09:06,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983160255] [2022-04-07 01:09:06,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:09:06,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:09:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:09:06,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:09:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:09:06,494 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-04-07 01:09:06,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:09:06,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983160255] [2022-04-07 01:09:06,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983160255] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:09:06,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:09:06,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-07 01:09:06,495 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:09:06,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [591066511] [2022-04-07 01:09:06,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [591066511] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:09:06,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:09:06,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-07 01:09:06,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152582820] [2022-04-07 01:09:06,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:09:06,496 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-07 01:09:06,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:06,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-07 01:09:06,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-07 01:09:06,496 INFO L87 Difference]: Start difference. First operand 355 states and 560 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 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) [2022-04-07 01:09:08,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:09:09,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:09:09,017 INFO L93 Difference]: Finished difference Result 703 states and 1112 transitions. [2022-04-07 01:09:09,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-07 01:09:09,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 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 132 [2022-04-07 01:09:09,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:09:09,019 INFO L225 Difference]: With dead ends: 703 [2022-04-07 01:09:09,020 INFO L226 Difference]: Without dead ends: 355 [2022-04-07 01:09:09,020 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 [2022-04-07 01:09:09,021 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 7 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-07 01:09:09,021 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 791 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 429 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-07 01:09:09,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-04-07 01:09:09,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2022-04-07 01:09:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.5857142857142856) internal successors, (555), 350 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) [2022-04-07 01:09:09,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 559 transitions. [2022-04-07 01:09:09,039 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 559 transitions. Word has length 132 [2022-04-07 01:09:09,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:09:09,039 INFO L478 AbstractCegarLoop]: Abstraction has 355 states and 559 transitions. [2022-04-07 01:09:09,039 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 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) [2022-04-07 01:09:09,039 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 559 transitions. [2022-04-07 01:09:09,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-07 01:09:09,041 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:09:09,041 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, 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] [2022-04-07 01:09:09,041 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-07 01:09:09,042 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:09:09,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:09:09,042 INFO L85 PathProgramCache]: Analyzing trace with hash 286813802, now seen corresponding path program 1 times [2022-04-07 01:09:09,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:09,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1387836696] [2022-04-07 01:09:09,060 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:09:09,060 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:09:09,060 INFO L85 PathProgramCache]: Analyzing trace with hash 286813802, now seen corresponding path program 2 times [2022-04-07 01:09:09,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:09:09,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559476740] [2022-04-07 01:09:09,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:09:09,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:09:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-07 01:09:09,521 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-07 01:09:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-07 01:09:09,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-07 01:09:09,751 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-04-07 01:09:09,751 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-07 01:09:09,756 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-07 01:09:09,759 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-07 01:09:09,762 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] [2022-04-07 01:09:09,764 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-07 01:09:09,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 01:09:09 BoogieIcfgContainer [2022-04-07 01:09:09,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-07 01:09:09,810 INFO L158 Benchmark]: Toolchain (without parser) took 70887.70ms. Allocated memory was 196.1MB in the beginning and 311.4MB in the end (delta: 115.3MB). Free memory was 139.8MB in the beginning and 100.3MB in the end (delta: 39.5MB). Peak memory consumption was 155.0MB. Max. memory is 8.0GB. [2022-04-07 01:09:09,810 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 196.1MB. Free memory was 158.5MB in the beginning and 158.4MB in the end (delta: 72.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-07 01:09:09,813 INFO L158 Benchmark]: CACSL2BoogieTranslator took 545.37ms. Allocated memory was 196.1MB in the beginning and 259.0MB in the end (delta: 62.9MB). Free memory was 139.7MB in the beginning and 209.3MB in the end (delta: -69.6MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. [2022-04-07 01:09:09,815 INFO L158 Benchmark]: Boogie Preprocessor took 137.36ms. Allocated memory is still 259.0MB. Free memory was 209.3MB in the beginning and 201.7MB in the end (delta: 7.6MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-04-07 01:09:09,815 INFO L158 Benchmark]: RCFGBuilder took 3017.88ms. Allocated memory is still 259.0MB. Free memory was 201.7MB in the beginning and 169.9MB in the end (delta: 31.8MB). Peak memory consumption was 33.3MB. Max. memory is 8.0GB. [2022-04-07 01:09:09,816 INFO L158 Benchmark]: TraceAbstraction took 67182.56ms. Allocated memory was 259.0MB in the beginning and 311.4MB in the end (delta: 52.4MB). Free memory was 169.4MB in the beginning and 100.3MB in the end (delta: 69.1MB). Peak memory consumption was 121.5MB. Max. memory is 8.0GB. [2022-04-07 01:09:09,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 196.1MB. Free memory was 158.5MB in the beginning and 158.4MB in the end (delta: 72.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 545.37ms. Allocated memory was 196.1MB in the beginning and 259.0MB in the end (delta: 62.9MB). Free memory was 139.7MB in the beginning and 209.3MB in the end (delta: -69.6MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 137.36ms. Allocated memory is still 259.0MB. Free memory was 209.3MB in the beginning and 201.7MB in the end (delta: 7.6MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 3017.88ms. Allocated memory is still 259.0MB. Free memory was 201.7MB in the beginning and 169.9MB in the end (delta: 31.8MB). Peak memory consumption was 33.3MB. Max. memory is 8.0GB. * TraceAbstraction took 67182.56ms. Allocated memory was 259.0MB in the beginning and 311.4MB in the end (delta: 52.4MB). Free memory was 169.4MB in the beginning and 100.3MB in the end (delta: 69.1MB). Peak memory consumption was 121.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1733]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1152. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1086] s->state = 8464 [L1088] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1089] s->options = __VERIFIER_nondet_ulong() [L1090] s->verify_mode = __VERIFIER_nondet_int() [L1091] EXPR s->session [L1091] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1096] COND FALSE !(__VERIFIER_nondet_int()) [L1102] s->cert = malloc(sizeof(struct cert_st)) [L1103] EXPR s->cert [L1103] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1106] CALL ssl3_accept(s) [L1112] BUF_MEM *buf ; [L1113] unsigned long l ; [L1114] unsigned long Time ; [L1115] unsigned long tmp ; [L1116] void (*cb)() ; [L1117] long num1 ; [L1118] int ret ; [L1119] int new_state ; [L1120] int state ; [L1121] int skip ; [L1122] int got_new_session ; [L1123] int tmp___1 = __VERIFIER_nondet_int() ; [L1124] int tmp___2 = __VERIFIER_nondet_int() ; [L1125] int tmp___3 = __VERIFIER_nondet_int() ; [L1126] int tmp___4 = __VERIFIER_nondet_int() ; [L1127] int tmp___5 = __VERIFIER_nondet_int() ; [L1128] int tmp___6 = __VERIFIER_nondet_int() ; [L1129] int tmp___7 ; [L1130] long tmp___8 = __VERIFIER_nondet_long() ; [L1131] int tmp___9 = __VERIFIER_nondet_int() ; [L1132] int tmp___10 = __VERIFIER_nondet_int() ; [L1133] int blastFlag ; [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] tmp = __VERIFIER_nondet_int() [L1141] Time = tmp [L1142] cb = (void (*)())((void *)0) [L1143] ret = -1 [L1144] skip = 0 [L1145] got_new_session = 0 [L1146] EXPR s->info_callback [L1146] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1147] EXPR s->info_callback [L1147] cb = s->info_callback [L1151] EXPR s->in_handshake [L1151] s->in_handshake += 1 [L1152] COND FALSE !(tmp___1 & 12288) [L1161] EXPR s->cert [L1161] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND TRUE s->state == 8464 [L1354] s->shutdown = 0 [L1355] ret = __VERIFIER_nondet_int() [L1356] COND TRUE blastFlag == 0 [L1357] blastFlag = 1 [L1361] COND FALSE !(ret <= 0) [L1366] got_new_session = 1 [L1367] s->state = 8496 [L1368] s->init_num = 0 [L1692] EXPR s->s3 [L1692] EXPR (s->s3)->tmp.reuse_message [L1692] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1721] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND TRUE s->state == 8496 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND TRUE blastFlag == 1 [L1374] blastFlag = 2 [L1378] COND FALSE !(ret <= 0) [L1383] s->hit [L1383] COND TRUE s->hit [L1384] s->state = 8656 [L1388] s->init_num = 0 [L1692] EXPR s->s3 [L1692] EXPR (s->s3)->tmp.reuse_message [L1692] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1721] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND TRUE s->state == 8656 [L1581] EXPR s->session [L1581] EXPR s->s3 [L1581] EXPR (s->s3)->tmp.new_cipher [L1581] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1582] COND FALSE !(! tmp___9) [L1588] ret = __VERIFIER_nondet_int() [L1589] COND TRUE blastFlag == 2 [L1590] blastFlag = 4 [L1598] COND FALSE !(ret <= 0) [L1603] s->state = 8672 [L1604] s->init_num = 0 [L1605] COND FALSE !(! tmp___10) [L1692] EXPR s->s3 [L1692] EXPR (s->s3)->tmp.reuse_message [L1692] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1721] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND FALSE !(s->state == 8656) [L1263] EXPR s->state [L1263] COND FALSE !(s->state == 8657) [L1266] EXPR s->state [L1266] COND TRUE s->state == 8672 [L1614] ret = __VERIFIER_nondet_int() [L1615] COND TRUE blastFlag == 4 [L1733] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 184 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.1s, OverallIterations: 26, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 61.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 25 mSolverCounterUnknown, 1261 SdHoareTripleChecker+Valid, 60.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1261 mSDsluCounter, 11453 SdHoareTripleChecker+Invalid, 58.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7201 mSDsCounter, 532 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9960 IncrementalHoareTripleChecker+Invalid, 10517 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 532 mSolverCounterUnsat, 4252 mSDtfsCounter, 9960 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 196 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=355occurred in iteration=23, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 25 MinimizatonAttempts, 867 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-04-07 01:09:09,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...