/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.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:57:23,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:57:23,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:57:23,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 23:57:23,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 23:57:23,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 23:57:23,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 23:57:23,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 23:57:23,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 23:57:23,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 23:57:23,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 23:57:23,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 23:57:23,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:57:23,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:57:23,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:57:23,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:57:23,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:57:23,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:57:23,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:57:23,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:57:23,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:57:23,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:57:23,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:57:23,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:57:23,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:57:23,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:57:23,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:57:23,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:57:23,926 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-01-31 23:57:23,934 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:57:23,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:57:23,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:57:23,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:57:23,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:57:23,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:57:23,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:57:23,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:57:23,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:57:23,936 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:57:23,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:57:23,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:57:23,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:57:23,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:57:23,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:57:23,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:57:23,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:57:23,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:57:23,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:57:23,937 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-01-31 23:57:23,937 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:57:24,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:57:24,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:57:24,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:57:24,127 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:57:24,127 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:57:24,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-01-31 23:57:24,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda154638/2c0362a27d6b47c4a3ccbea3b37ebff3/FLAG9445b35d1 [2022-01-31 23:57:24,657 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:57:24,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-01-31 23:57:24,688 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda154638/2c0362a27d6b47c4a3ccbea3b37ebff3/FLAG9445b35d1 [2022-01-31 23:57:25,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda154638/2c0362a27d6b47c4a3ccbea3b37ebff3 [2022-01-31 23:57:25,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:57:25,208 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:57:25,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:57:25,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:57:25,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:57:25,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:57:25" (1/1) ... [2022-01-31 23:57:25,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a30a11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:25, skipping insertion in model container [2022-01-31 23:57:25,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:57:25" (1/1) ... [2022-01-31 23:57:25,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:57:25,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:57:25,616 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.01.i.cil-1.c[72918,72931] [2022-01-31 23:57:25,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:57:25,629 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:57:25,695 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.01.i.cil-1.c[72918,72931] [2022-01-31 23:57:25,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:57:25,707 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:57:25,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:25 WrapperNode [2022-01-31 23:57:25,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:57:25,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:57:25,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:57:25,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:57:25,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:25" (1/1) ... [2022-01-31 23:57:25,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:25" (1/1) ... [2022-01-31 23:57:25,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:25" (1/1) ... [2022-01-31 23:57:25,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:25" (1/1) ... [2022-01-31 23:57:25,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:25" (1/1) ... [2022-01-31 23:57:25,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:25" (1/1) ... [2022-01-31 23:57:25,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:25" (1/1) ... [2022-01-31 23:57:25,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:57:25,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:57:25,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:57:25,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:57:25,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:25" (1/1) ... [2022-01-31 23:57:25,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:57:25,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:57:25,821 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) [2022-01-31 23:57:25,848 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 [2022-01-31 23:57:25,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:57:25,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:57:25,861 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:57:25,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-01-31 23:57:25,861 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-01-31 23:57:25,862 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:57:25,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 23:57:25,862 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-01-31 23:57:25,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-01-31 23:57:25,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-01-31 23:57:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:57:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:57:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:57:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:57:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 23:57:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 23:57:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 23:57:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 23:57:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-01-31 23:57:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-01-31 23:57:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-01-31 23:57:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-01-31 23:57:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-01-31 23:57:25,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-01-31 23:57:25,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:57:26,047 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:57:26,048 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:57:28,383 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 23:57:28,795 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-01-31 23:57:28,795 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-01-31 23:57:28,808 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:57:28,816 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:57:28,816 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 23:57:28,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:57:28 BoogieIcfgContainer [2022-01-31 23:57:28,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:57:28,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:57:28,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:57:28,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:57:28,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:57:25" (1/3) ... [2022-01-31 23:57:28,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30119cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:57:28, skipping insertion in model container [2022-01-31 23:57:28,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:57:25" (2/3) ... [2022-01-31 23:57:28,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30119cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:57:28, skipping insertion in model container [2022-01-31 23:57:28,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:57:28" (3/3) ... [2022-01-31 23:57:28,823 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-1.c [2022-01-31 23:57:28,826 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:57:28,826 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:57:28,853 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:57:28,857 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, 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, mLoopAccelerationTechnique=QVASR [2022-01-31 23:57:28,857 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:57:28,868 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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) [2022-01-31 23:57:28,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-31 23:57:28,886 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:28,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:57:28,887 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:28,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:28,894 INFO L85 PathProgramCache]: Analyzing trace with hash 37136980, now seen corresponding path program 1 times [2022-01-31 23:57:28,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:28,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236227474] [2022-01-31 23:57:28,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:28,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:28,952 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:29,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:29,297 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:29,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236227474] [2022-01-31 23:57:29,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [236227474] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:29,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:29,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:29,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737844927] [2022-01-31 23:57:29,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:29,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:29,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:29,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:29,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:29,320 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:31,349 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 [] [2022-01-31 23:57:31,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:31,813 INFO L93 Difference]: Finished difference Result 328 states and 543 transitions. [2022-01-31 23:57:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:31,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 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 53 [2022-01-31 23:57:31,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:31,821 INFO L225 Difference]: With dead ends: 328 [2022-01-31 23:57:31,822 INFO L226 Difference]: Without dead ends: 167 [2022-01-31 23:57:31,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:31,828 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 33 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:31,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 583 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:57:31,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-01-31 23:57:31,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2022-01-31 23:57:31,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5379310344827586) internal successors, (223), 145 states have internal predecessors, (223), 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) [2022-01-31 23:57:31,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 227 transitions. [2022-01-31 23:57:31,883 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 227 transitions. Word has length 53 [2022-01-31 23:57:31,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:31,883 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 227 transitions. [2022-01-31 23:57:31,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:31,884 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 227 transitions. [2022-01-31 23:57:31,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 23:57:31,886 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:31,887 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:57:31,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:57:31,887 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:31,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:31,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2067870814, now seen corresponding path program 1 times [2022-01-31 23:57:31,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:31,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497633232] [2022-01-31 23:57:31,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:31,907 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:31,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:31,911 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:32,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:32,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:32,122 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:32,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497633232] [2022-01-31 23:57:32,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1497633232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:32,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:32,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:32,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674269923] [2022-01-31 23:57:32,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:32,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:32,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:32,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:32,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:32,126 INFO L87 Difference]: Start difference. First operand 150 states and 227 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) [2022-01-31 23:57:34,144 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 [] [2022-01-31 23:57:34,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:34,478 INFO L93 Difference]: Finished difference Result 291 states and 437 transitions. [2022-01-31 23:57:34,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:34,479 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 [2022-01-31 23:57:34,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:34,480 INFO L225 Difference]: With dead ends: 291 [2022-01-31 23:57:34,480 INFO L226 Difference]: Without dead ends: 167 [2022-01-31 23:57:34,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:34,482 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 24 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:34,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 462 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:57:34,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-01-31 23:57:34,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2022-01-31 23:57:34,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5310344827586206) internal successors, (222), 145 states have internal predecessors, (222), 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) [2022-01-31 23:57:34,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 226 transitions. [2022-01-31 23:57:34,490 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 226 transitions. Word has length 66 [2022-01-31 23:57:34,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:34,490 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 226 transitions. [2022-01-31 23:57:34,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:34,491 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 226 transitions. [2022-01-31 23:57:34,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-31 23:57:34,492 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:34,492 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:57:34,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:57:34,492 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:34,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:34,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1264672313, now seen corresponding path program 1 times [2022-01-31 23:57:34,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:34,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1406054518] [2022-01-31 23:57:34,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:34,497 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:34,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:34,499 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:34,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:34,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:34,621 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:34,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1406054518] [2022-01-31 23:57:34,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1406054518] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:34,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:34,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:34,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856890111] [2022-01-31 23:57:34,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:34,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:34,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:34,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:34,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:34,623 INFO L87 Difference]: Start difference. First operand 150 states and 226 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) [2022-01-31 23:57:36,644 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 [] [2022-01-31 23:57:36,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:36,966 INFO L93 Difference]: Finished difference Result 289 states and 434 transitions. [2022-01-31 23:57:36,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:36,966 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 [2022-01-31 23:57:36,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:36,968 INFO L225 Difference]: With dead ends: 289 [2022-01-31 23:57:36,968 INFO L226 Difference]: Without dead ends: 165 [2022-01-31 23:57:36,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:36,969 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:36,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 466 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 349 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:57:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-01-31 23:57:36,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 150. [2022-01-31 23:57:36,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5241379310344827) internal successors, (221), 145 states have internal predecessors, (221), 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) [2022-01-31 23:57:36,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 225 transitions. [2022-01-31 23:57:36,982 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 225 transitions. Word has length 67 [2022-01-31 23:57:36,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:36,982 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 225 transitions. [2022-01-31 23:57:36,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:36,983 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 225 transitions. [2022-01-31 23:57:36,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-31 23:57:36,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:36,986 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:57:36,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 23:57:36,986 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:36,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:36,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1566814562, now seen corresponding path program 1 times [2022-01-31 23:57:36,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:36,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287088574] [2022-01-31 23:57:36,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:36,989 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:36,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:37,017 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:37,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:37,127 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:37,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287088574] [2022-01-31 23:57:37,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1287088574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:37,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:37,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:37,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703928296] [2022-01-31 23:57:37,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:37,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:37,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:37,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:37,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:37,131 INFO L87 Difference]: Start difference. First operand 150 states and 225 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) [2022-01-31 23:57:39,147 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 [] [2022-01-31 23:57:39,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:39,478 INFO L93 Difference]: Finished difference Result 288 states and 432 transitions. [2022-01-31 23:57:39,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:39,478 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 [2022-01-31 23:57:39,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:39,479 INFO L225 Difference]: With dead ends: 288 [2022-01-31 23:57:39,479 INFO L226 Difference]: Without dead ends: 164 [2022-01-31 23:57:39,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:39,480 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 20 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:39,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 468 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 347 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:57:39,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-01-31 23:57:39,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 150. [2022-01-31 23:57:39,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5172413793103448) internal successors, (220), 145 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) [2022-01-31 23:57:39,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 224 transitions. [2022-01-31 23:57:39,490 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 224 transitions. Word has length 67 [2022-01-31 23:57:39,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:39,490 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 224 transitions. [2022-01-31 23:57:39,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:39,491 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 224 transitions. [2022-01-31 23:57:39,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-31 23:57:39,492 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:39,492 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:57:39,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 23:57:39,492 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:39,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:39,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1167044530, now seen corresponding path program 1 times [2022-01-31 23:57:39,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:39,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503416737] [2022-01-31 23:57:39,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:39,512 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:39,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:39,514 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:39,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:39,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:39,604 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:39,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503416737] [2022-01-31 23:57:39,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [503416737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:39,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:39,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:39,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663841764] [2022-01-31 23:57:39,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:39,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:39,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:39,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:39,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:39,606 INFO L87 Difference]: Start difference. First operand 150 states and 224 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) [2022-01-31 23:57:41,620 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 [] [2022-01-31 23:57:41,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:41,936 INFO L93 Difference]: Finished difference Result 287 states and 430 transitions. [2022-01-31 23:57:41,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:41,937 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 [2022-01-31 23:57:41,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:41,938 INFO L225 Difference]: With dead ends: 287 [2022-01-31 23:57:41,938 INFO L226 Difference]: Without dead ends: 163 [2022-01-31 23:57:41,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:41,939 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 26 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:41,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:57:41,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-01-31 23:57:41,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 150. [2022-01-31 23:57:41,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5103448275862068) internal successors, (219), 145 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) [2022-01-31 23:57:41,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 223 transitions. [2022-01-31 23:57:41,950 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 223 transitions. Word has length 68 [2022-01-31 23:57:41,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:41,950 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 223 transitions. [2022-01-31 23:57:41,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:41,950 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 223 transitions. [2022-01-31 23:57:41,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-31 23:57:41,951 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:41,951 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:57:41,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 23:57:41,951 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:41,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:41,952 INFO L85 PathProgramCache]: Analyzing trace with hash -958455226, now seen corresponding path program 1 times [2022-01-31 23:57:41,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:41,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957850698] [2022-01-31 23:57:41,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:41,966 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:41,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:41,970 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:42,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:42,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:42,076 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:42,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957850698] [2022-01-31 23:57:42,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [957850698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:42,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:42,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:42,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317455529] [2022-01-31 23:57:42,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:42,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:42,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:42,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:42,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:42,077 INFO L87 Difference]: Start difference. First operand 150 states and 223 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) [2022-01-31 23:57:44,087 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 [] [2022-01-31 23:57:44,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:44,399 INFO L93 Difference]: Finished difference Result 287 states and 429 transitions. [2022-01-31 23:57:44,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:44,399 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 [2022-01-31 23:57:44,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:44,400 INFO L225 Difference]: With dead ends: 287 [2022-01-31 23:57:44,400 INFO L226 Difference]: Without dead ends: 163 [2022-01-31 23:57:44,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:44,401 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 24 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:44,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:57:44,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-01-31 23:57:44,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 150. [2022-01-31 23:57:44,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5034482758620689) internal successors, (218), 145 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) [2022-01-31 23:57:44,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 222 transitions. [2022-01-31 23:57:44,406 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 222 transitions. Word has length 68 [2022-01-31 23:57:44,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:44,406 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 222 transitions. [2022-01-31 23:57:44,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:44,407 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 222 transitions. [2022-01-31 23:57:44,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-31 23:57:44,412 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:44,412 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:57:44,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 23:57:44,412 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:44,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:44,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1539955179, now seen corresponding path program 1 times [2022-01-31 23:57:44,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:44,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065197248] [2022-01-31 23:57:44,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:44,419 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:44,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:44,422 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:44,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:44,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:44,529 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:44,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065197248] [2022-01-31 23:57:44,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1065197248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:44,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:44,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:44,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125844937] [2022-01-31 23:57:44,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:44,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:44,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:44,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:44,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:44,531 INFO L87 Difference]: Start difference. First operand 150 states and 222 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) [2022-01-31 23:57:46,538 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 [] [2022-01-31 23:57:46,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:46,975 INFO L93 Difference]: Finished difference Result 390 states and 590 transitions. [2022-01-31 23:57:46,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:46,975 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 [2022-01-31 23:57:46,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:46,976 INFO L225 Difference]: With dead ends: 390 [2022-01-31 23:57:46,977 INFO L226 Difference]: Without dead ends: 266 [2022-01-31 23:57:46,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:46,977 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 143 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:46,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:57:46,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-01-31 23:57:46,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 163. [2022-01-31 23:57:46,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 158 states have (on average 1.5) internal successors, (237), 158 states have internal predecessors, (237), 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) [2022-01-31 23:57:46,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 241 transitions. [2022-01-31 23:57:46,984 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 241 transitions. Word has length 69 [2022-01-31 23:57:46,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:46,984 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 241 transitions. [2022-01-31 23:57:46,984 INFO L471 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) [2022-01-31 23:57:46,984 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 241 transitions. [2022-01-31 23:57:46,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-31 23:57:46,985 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:46,985 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:57:46,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 23:57:46,985 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:46,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:46,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1242715221, now seen corresponding path program 1 times [2022-01-31 23:57:46,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:46,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2104625983] [2022-01-31 23:57:46,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:46,991 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:46,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:46,994 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:47,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:47,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:47,067 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:47,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2104625983] [2022-01-31 23:57:47,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2104625983] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:47,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:47,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:47,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322802347] [2022-01-31 23:57:47,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:47,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:47,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:47,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:47,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:47,068 INFO L87 Difference]: Start difference. First operand 163 states and 241 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) [2022-01-31 23:57:49,083 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 [] [2022-01-31 23:57:49,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:49,543 INFO L93 Difference]: Finished difference Result 403 states and 608 transitions. [2022-01-31 23:57:49,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:49,543 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 [2022-01-31 23:57:49,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:49,545 INFO L225 Difference]: With dead ends: 403 [2022-01-31 23:57:49,545 INFO L226 Difference]: Without dead ends: 266 [2022-01-31 23:57:49,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:49,546 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 141 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:49,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:57:49,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-01-31 23:57:49,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 164. [2022-01-31 23:57:49,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 159 states have (on average 1.490566037735849) internal successors, (237), 159 states have internal predecessors, (237), 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) [2022-01-31 23:57:49,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 241 transitions. [2022-01-31 23:57:49,552 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 241 transitions. Word has length 70 [2022-01-31 23:57:49,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:49,552 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 241 transitions. [2022-01-31 23:57:49,552 INFO L471 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) [2022-01-31 23:57:49,552 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 241 transitions. [2022-01-31 23:57:49,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-31 23:57:49,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:49,553 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:57:49,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 23:57:49,553 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:49,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:49,553 INFO L85 PathProgramCache]: Analyzing trace with hash 265614375, now seen corresponding path program 1 times [2022-01-31 23:57:49,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:49,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [756592305] [2022-01-31 23:57:49,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:49,557 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:49,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:49,560 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:49,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:49,654 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:49,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [756592305] [2022-01-31 23:57:49,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [756592305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:49,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:49,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:49,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361478307] [2022-01-31 23:57:49,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:49,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:49,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:49,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:49,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:49,655 INFO L87 Difference]: Start difference. First operand 164 states and 241 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) [2022-01-31 23:57:51,671 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 [] [2022-01-31 23:57:52,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:52,059 INFO L93 Difference]: Finished difference Result 345 states and 515 transitions. [2022-01-31 23:57:52,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:52,059 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 [2022-01-31 23:57:52,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:52,061 INFO L225 Difference]: With dead ends: 345 [2022-01-31 23:57:52,061 INFO L226 Difference]: Without dead ends: 207 [2022-01-31 23:57:52,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:52,062 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 32 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:52,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 510 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:57:52,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-01-31 23:57:52,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 186. [2022-01-31 23:57:52,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.5082872928176796) internal successors, (273), 181 states have internal predecessors, (273), 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) [2022-01-31 23:57:52,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 277 transitions. [2022-01-31 23:57:52,071 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 277 transitions. Word has length 70 [2022-01-31 23:57:52,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:52,071 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 277 transitions. [2022-01-31 23:57:52,071 INFO L471 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) [2022-01-31 23:57:52,071 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 277 transitions. [2022-01-31 23:57:52,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-31 23:57:52,072 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:52,072 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:57:52,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 23:57:52,072 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:52,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:52,073 INFO L85 PathProgramCache]: Analyzing trace with hash -235166032, now seen corresponding path program 1 times [2022-01-31 23:57:52,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:52,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258149737] [2022-01-31 23:57:52,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:52,079 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:52,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:52,084 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:52,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:52,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:52,159 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:52,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258149737] [2022-01-31 23:57:52,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1258149737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:52,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:52,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:52,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478142594] [2022-01-31 23:57:52,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:52,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:52,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:52,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:52,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:52,160 INFO L87 Difference]: Start difference. First operand 186 states and 277 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:54,177 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 [] [2022-01-31 23:57:54,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:54,475 INFO L93 Difference]: Finished difference Result 349 states and 527 transitions. [2022-01-31 23:57:54,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:54,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2022-01-31 23:57:54,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:54,476 INFO L225 Difference]: With dead ends: 349 [2022-01-31 23:57:54,476 INFO L226 Difference]: Without dead ends: 189 [2022-01-31 23:57:54,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:54,477 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 11 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:54,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 484 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 331 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:57:54,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-01-31 23:57:54,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 186. [2022-01-31 23:57:54,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.5027624309392265) internal successors, (272), 181 states have internal predecessors, (272), 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) [2022-01-31 23:57:54,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 276 transitions. [2022-01-31 23:57:54,482 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 276 transitions. Word has length 71 [2022-01-31 23:57:54,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:54,482 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 276 transitions. [2022-01-31 23:57:54,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:54,483 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 276 transitions. [2022-01-31 23:57:54,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-31 23:57:54,483 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:54,483 INFO L514 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] [2022-01-31 23:57:54,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 23:57:54,484 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:54,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:54,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1881952431, now seen corresponding path program 1 times [2022-01-31 23:57:54,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:54,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1243129175] [2022-01-31 23:57:54,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:54,492 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:54,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:54,496 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:54,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:54,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:54,571 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:54,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1243129175] [2022-01-31 23:57:54,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1243129175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:54,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:54,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:54,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376548459] [2022-01-31 23:57:54,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:54,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:54,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:54,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:54,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:54,573 INFO L87 Difference]: Start difference. First operand 186 states and 276 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) [2022-01-31 23:57:56,587 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 [] [2022-01-31 23:57:56,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:56,957 INFO L93 Difference]: Finished difference Result 367 states and 549 transitions. [2022-01-31 23:57:56,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:56,958 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 [2022-01-31 23:57:56,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:56,959 INFO L225 Difference]: With dead ends: 367 [2022-01-31 23:57:56,959 INFO L226 Difference]: Without dead ends: 207 [2022-01-31 23:57:56,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:56,960 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 37 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:56,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 482 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:57:56,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-01-31 23:57:56,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 186. [2022-01-31 23:57:56,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.4972375690607735) internal successors, (271), 181 states have internal predecessors, (271), 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) [2022-01-31 23:57:56,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 275 transitions. [2022-01-31 23:57:56,965 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 275 transitions. Word has length 83 [2022-01-31 23:57:56,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:56,965 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 275 transitions. [2022-01-31 23:57:56,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:56,965 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 275 transitions. [2022-01-31 23:57:56,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-31 23:57:56,966 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:56,966 INFO L514 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] [2022-01-31 23:57:56,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 23:57:56,966 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:56,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:56,967 INFO L85 PathProgramCache]: Analyzing trace with hash 920763994, now seen corresponding path program 1 times [2022-01-31 23:57:56,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:56,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076000609] [2022-01-31 23:57:56,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:56,975 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:56,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:56,978 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:57,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:57,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:57,062 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:57,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2076000609] [2022-01-31 23:57:57,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2076000609] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:57,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:57,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:57,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671908928] [2022-01-31 23:57:57,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:57,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:57,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:57,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:57,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:57,064 INFO L87 Difference]: Start difference. First operand 186 states and 275 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) [2022-01-31 23:57:59,074 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 [] [2022-01-31 23:57:59,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:59,510 INFO L93 Difference]: Finished difference Result 448 states and 676 transitions. [2022-01-31 23:57:59,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:59,510 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 [2022-01-31 23:57:59,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:59,511 INFO L225 Difference]: With dead ends: 448 [2022-01-31 23:57:59,512 INFO L226 Difference]: Without dead ends: 288 [2022-01-31 23:57:59,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:59,512 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 138 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:59,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:57:59,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-01-31 23:57:59,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 189. [2022-01-31 23:57:59,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.4945652173913044) internal successors, (275), 184 states have internal predecessors, (275), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:59,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 279 transitions. [2022-01-31 23:57:59,519 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 279 transitions. Word has length 84 [2022-01-31 23:57:59,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:59,520 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 279 transitions. [2022-01-31 23:57:59,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:59,520 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 279 transitions. [2022-01-31 23:57:59,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-31 23:57:59,521 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:59,521 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:57:59,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 23:57:59,521 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:59,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:59,522 INFO L85 PathProgramCache]: Analyzing trace with hash -542716427, now seen corresponding path program 1 times [2022-01-31 23:57:59,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:59,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283024766] [2022-01-31 23:57:59,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:59,531 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:59,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:59,535 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:59,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:59,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:59,616 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:59,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283024766] [2022-01-31 23:57:59,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [283024766] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:59,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:59,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:59,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296999546] [2022-01-31 23:57:59,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:59,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:59,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:59,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:59,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:59,618 INFO L87 Difference]: Start difference. First operand 189 states and 279 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) [2022-01-31 23:58:01,635 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 [] [2022-01-31 23:58:01,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:01,997 INFO L93 Difference]: Finished difference Result 370 states and 552 transitions. [2022-01-31 23:58:01,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:01,997 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 [2022-01-31 23:58:01,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:01,998 INFO L225 Difference]: With dead ends: 370 [2022-01-31 23:58:01,998 INFO L226 Difference]: Without dead ends: 207 [2022-01-31 23:58:01,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:01,999 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 33 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:01,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 488 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:58:01,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-01-31 23:58:02,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 189. [2022-01-31 23:58:02,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.4891304347826086) internal successors, (274), 184 states have internal predecessors, (274), 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) [2022-01-31 23:58:02,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 278 transitions. [2022-01-31 23:58:02,004 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 278 transitions. Word has length 84 [2022-01-31 23:58:02,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:02,004 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 278 transitions. [2022-01-31 23:58:02,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:02,004 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 278 transitions. [2022-01-31 23:58:02,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-31 23:58:02,005 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:02,005 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:02,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 23:58:02,005 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:02,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:02,006 INFO L85 PathProgramCache]: Analyzing trace with hash 196093311, now seen corresponding path program 1 times [2022-01-31 23:58:02,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:02,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330134307] [2022-01-31 23:58:02,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:02,019 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:02,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:02,023 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:02,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:02,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:02,105 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:02,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330134307] [2022-01-31 23:58:02,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [330134307] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:02,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:02,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:02,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130290880] [2022-01-31 23:58:02,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:02,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:02,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:02,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:02,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:02,107 INFO L87 Difference]: Start difference. First operand 189 states and 278 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) [2022-01-31 23:58:04,114 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 [] [2022-01-31 23:58:04,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:04,467 INFO L93 Difference]: Finished difference Result 381 states and 567 transitions. [2022-01-31 23:58:04,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:04,467 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 85 [2022-01-31 23:58:04,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:04,468 INFO L225 Difference]: With dead ends: 381 [2022-01-31 23:58:04,468 INFO L226 Difference]: Without dead ends: 218 [2022-01-31 23:58:04,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:04,469 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 20 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:04,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 549 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:58:04,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-01-31 23:58:04,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 205. [2022-01-31 23:58:04,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.49) internal successors, (298), 200 states have internal predecessors, (298), 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) [2022-01-31 23:58:04,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 302 transitions. [2022-01-31 23:58:04,475 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 302 transitions. Word has length 85 [2022-01-31 23:58:04,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:04,475 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 302 transitions. [2022-01-31 23:58:04,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:04,475 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 302 transitions. [2022-01-31 23:58:04,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-31 23:58:04,476 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:04,476 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:04,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 23:58:04,476 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:04,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:04,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1399777088, now seen corresponding path program 1 times [2022-01-31 23:58:04,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:04,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [354717340] [2022-01-31 23:58:04,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:04,488 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:04,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:04,492 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:04,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:04,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:04,578 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:04,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [354717340] [2022-01-31 23:58:04,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [354717340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:04,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:04,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:58:04,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631141820] [2022-01-31 23:58:04,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:04,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:58:04,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:04,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:58:04,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:04,579 INFO L87 Difference]: Start difference. First operand 205 states and 302 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 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) [2022-01-31 23:58:06,587 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 [] [2022-01-31 23:58:06,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:06,981 INFO L93 Difference]: Finished difference Result 393 states and 586 transitions. [2022-01-31 23:58:06,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 23:58:06,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 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 86 [2022-01-31 23:58:06,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:06,982 INFO L225 Difference]: With dead ends: 393 [2022-01-31 23:58:06,982 INFO L226 Difference]: Without dead ends: 214 [2022-01-31 23:58:06,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 23:58:06,983 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 2 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:06,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 605 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 424 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:06,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-01-31 23:58:06,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2022-01-31 23:58:06,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.4784688995215312) internal successors, (309), 209 states have internal predecessors, (309), 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) [2022-01-31 23:58:06,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 313 transitions. [2022-01-31 23:58:06,989 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 313 transitions. Word has length 86 [2022-01-31 23:58:06,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:06,990 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 313 transitions. [2022-01-31 23:58:06,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 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) [2022-01-31 23:58:06,990 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 313 transitions. [2022-01-31 23:58:06,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-31 23:58:06,990 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:06,990 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:06,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 23:58:06,991 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:06,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:06,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1429207212, now seen corresponding path program 1 times [2022-01-31 23:58:06,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:06,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17737852] [2022-01-31 23:58:06,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:07,002 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:07,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:07,006 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:07,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:07,095 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:07,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17737852] [2022-01-31 23:58:07,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [17737852] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:07,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:07,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:07,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870512836] [2022-01-31 23:58:07,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:07,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:07,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:07,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:07,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:07,097 INFO L87 Difference]: Start difference. First operand 214 states and 313 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) [2022-01-31 23:58:09,105 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 [] [2022-01-31 23:58:09,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:09,641 INFO L93 Difference]: Finished difference Result 510 states and 757 transitions. [2022-01-31 23:58:09,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:09,642 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 [2022-01-31 23:58:09,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:09,643 INFO L225 Difference]: With dead ends: 510 [2022-01-31 23:58:09,643 INFO L226 Difference]: Without dead ends: 322 [2022-01-31 23:58:09,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:09,644 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 142 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:09,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 23:58:09,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-01-31 23:58:09,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 214. [2022-01-31 23:58:09,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.4641148325358853) internal successors, (306), 209 states have internal predecessors, (306), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:09,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 310 transitions. [2022-01-31 23:58:09,656 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 310 transitions. Word has length 86 [2022-01-31 23:58:09,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:09,656 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 310 transitions. [2022-01-31 23:58:09,656 INFO L471 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) [2022-01-31 23:58:09,656 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 310 transitions. [2022-01-31 23:58:09,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-31 23:58:09,656 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:09,657 INFO L514 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, 1] [2022-01-31 23:58:09,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 23:58:09,657 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:09,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:09,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1042512644, now seen corresponding path program 1 times [2022-01-31 23:58:09,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:09,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956169343] [2022-01-31 23:58:09,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:09,683 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:09,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:09,688 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:09,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:09,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:09,804 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:09,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956169343] [2022-01-31 23:58:09,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1956169343] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:09,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:09,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:09,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105111948] [2022-01-31 23:58:09,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:09,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:09,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:09,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:09,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:09,805 INFO L87 Difference]: Start difference. First operand 214 states and 310 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) [2022-01-31 23:58:11,813 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 [] [2022-01-31 23:58:12,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:12,264 INFO L93 Difference]: Finished difference Result 500 states and 738 transitions. [2022-01-31 23:58:12,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:12,265 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 89 [2022-01-31 23:58:12,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:12,266 INFO L225 Difference]: With dead ends: 500 [2022-01-31 23:58:12,266 INFO L226 Difference]: Without dead ends: 312 [2022-01-31 23:58:12,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:12,267 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 137 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:12,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 323 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:12,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-01-31 23:58:12,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 214. [2022-01-31 23:58:12,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.4497607655502391) internal successors, (303), 209 states have internal predecessors, (303), 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) [2022-01-31 23:58:12,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 307 transitions. [2022-01-31 23:58:12,275 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 307 transitions. Word has length 89 [2022-01-31 23:58:12,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:12,275 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 307 transitions. [2022-01-31 23:58:12,275 INFO L471 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) [2022-01-31 23:58:12,275 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 307 transitions. [2022-01-31 23:58:12,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-31 23:58:12,276 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:12,276 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:12,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 23:58:12,276 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:12,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:12,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1288973530, now seen corresponding path program 1 times [2022-01-31 23:58:12,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:12,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28845892] [2022-01-31 23:58:12,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:12,285 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:12,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:12,289 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:12,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:12,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:12,375 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:12,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28845892] [2022-01-31 23:58:12,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [28845892] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:12,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:12,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:12,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805894513] [2022-01-31 23:58:12,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:12,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:12,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:12,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:12,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:12,377 INFO L87 Difference]: Start difference. First operand 214 states and 307 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) [2022-01-31 23:58:14,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:14,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:14,849 INFO L93 Difference]: Finished difference Result 517 states and 756 transitions. [2022-01-31 23:58:14,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:14,849 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 [2022-01-31 23:58:14,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:14,851 INFO L225 Difference]: With dead ends: 517 [2022-01-31 23:58:14,851 INFO L226 Difference]: Without dead ends: 329 [2022-01-31 23:58:14,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:14,852 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 107 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:14,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 324 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:14,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-01-31 23:58:14,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 257. [2022-01-31 23:58:14,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.5) internal successors, (378), 252 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) [2022-01-31 23:58:14,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 382 transitions. [2022-01-31 23:58:14,860 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 382 transitions. Word has length 92 [2022-01-31 23:58:14,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:14,861 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 382 transitions. [2022-01-31 23:58:14,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:14,861 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 382 transitions. [2022-01-31 23:58:14,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-31 23:58:14,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:14,862 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:14,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 23:58:14,862 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:14,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:14,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1523425566, now seen corresponding path program 1 times [2022-01-31 23:58:14,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:14,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825748265] [2022-01-31 23:58:14,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:14,870 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:14,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:14,875 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:14,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:14,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:14,998 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:14,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825748265] [2022-01-31 23:58:14,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [825748265] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:14,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:14,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:14,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516935652] [2022-01-31 23:58:14,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:14,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:14,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:14,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:14,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:14,999 INFO L87 Difference]: Start difference. First operand 257 states and 382 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) [2022-01-31 23:58:17,007 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 [] [2022-01-31 23:58:17,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:17,459 INFO L93 Difference]: Finished difference Result 584 states and 877 transitions. [2022-01-31 23:58:17,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:17,459 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 93 [2022-01-31 23:58:17,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:17,460 INFO L225 Difference]: With dead ends: 584 [2022-01-31 23:58:17,460 INFO L226 Difference]: Without dead ends: 353 [2022-01-31 23:58:17,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:17,461 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 73 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:17,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 474 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 524 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:17,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-01-31 23:58:17,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 300. [2022-01-31 23:58:17,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 295 states have (on average 1.528813559322034) internal successors, (451), 295 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) [2022-01-31 23:58:17,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 455 transitions. [2022-01-31 23:58:17,471 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 455 transitions. Word has length 93 [2022-01-31 23:58:17,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:17,471 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 455 transitions. [2022-01-31 23:58:17,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:17,472 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 455 transitions. [2022-01-31 23:58:17,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-31 23:58:17,472 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:17,472 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:17,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 23:58:17,472 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:17,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:17,473 INFO L85 PathProgramCache]: Analyzing trace with hash -629939228, now seen corresponding path program 1 times [2022-01-31 23:58:17,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:17,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197480537] [2022-01-31 23:58:17,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:17,481 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:17,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:17,486 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:17,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:17,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:17,568 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:17,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197480537] [2022-01-31 23:58:17,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [197480537] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:17,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:17,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:17,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383157041] [2022-01-31 23:58:17,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:17,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:17,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:17,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:17,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:17,569 INFO L87 Difference]: Start difference. First operand 300 states and 455 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) [2022-01-31 23:58:19,577 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 [] [2022-01-31 23:58:19,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:19,943 INFO L93 Difference]: Finished difference Result 622 states and 948 transitions. [2022-01-31 23:58:19,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:19,944 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 93 [2022-01-31 23:58:19,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:19,966 INFO L225 Difference]: With dead ends: 622 [2022-01-31 23:58:19,966 INFO L226 Difference]: Without dead ends: 348 [2022-01-31 23:58:19,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:19,968 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 34 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:19,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 578 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 455 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:58:19,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-01-31 23:58:19,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 324. [2022-01-31 23:58:19,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.5297805642633229) internal successors, (488), 319 states have internal predecessors, (488), 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) [2022-01-31 23:58:19,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 492 transitions. [2022-01-31 23:58:19,981 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 492 transitions. Word has length 93 [2022-01-31 23:58:19,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:19,982 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 492 transitions. [2022-01-31 23:58:19,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:19,982 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 492 transitions. [2022-01-31 23:58:19,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-31 23:58:19,988 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:19,988 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:19,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 23:58:19,989 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:19,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:19,989 INFO L85 PathProgramCache]: Analyzing trace with hash 195004881, now seen corresponding path program 1 times [2022-01-31 23:58:19,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:19,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665146835] [2022-01-31 23:58:19,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:20,040 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:20,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:20,045 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:20,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:20,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:20,127 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:20,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665146835] [2022-01-31 23:58:20,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1665146835] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:20,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:20,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:20,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880435400] [2022-01-31 23:58:20,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:20,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:20,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:20,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:20,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:20,128 INFO L87 Difference]: Start difference. First operand 324 states and 492 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) [2022-01-31 23:58:22,136 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 [] [2022-01-31 23:58:22,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:22,550 INFO L93 Difference]: Finished difference Result 710 states and 1090 transitions. [2022-01-31 23:58:22,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:22,550 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 99 [2022-01-31 23:58:22,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:22,552 INFO L225 Difference]: With dead ends: 710 [2022-01-31 23:58:22,552 INFO L226 Difference]: Without dead ends: 412 [2022-01-31 23:58:22,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:22,553 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 134 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:22,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 339 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:22,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-01-31 23:58:22,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 324. [2022-01-31 23:58:22,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.5109717868338557) internal successors, (482), 319 states have internal predecessors, (482), 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) [2022-01-31 23:58:22,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 486 transitions. [2022-01-31 23:58:22,563 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 486 transitions. Word has length 99 [2022-01-31 23:58:22,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:22,563 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 486 transitions. [2022-01-31 23:58:22,563 INFO L471 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) [2022-01-31 23:58:22,563 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 486 transitions. [2022-01-31 23:58:22,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-31 23:58:22,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:22,564 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:22,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 23:58:22,564 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:22,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1691010872, now seen corresponding path program 1 times [2022-01-31 23:58:22,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:22,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689902495] [2022-01-31 23:58:22,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:22,577 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:22,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:22,583 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:22,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:22,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:22,671 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:22,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689902495] [2022-01-31 23:58:22,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [689902495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:22,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:22,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:22,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647066308] [2022-01-31 23:58:22,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:22,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:22,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:22,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:22,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:22,672 INFO L87 Difference]: Start difference. First operand 324 states and 486 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:24,679 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 [] [2022-01-31 23:58:25,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:25,108 INFO L93 Difference]: Finished difference Result 663 states and 997 transitions. [2022-01-31 23:58:25,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:25,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 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 106 [2022-01-31 23:58:25,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:25,111 INFO L225 Difference]: With dead ends: 663 [2022-01-31 23:58:25,111 INFO L226 Difference]: Without dead ends: 365 [2022-01-31 23:58:25,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:25,112 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 90 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:25,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 460 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:25,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-01-31 23:58:25,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 324. [2022-01-31 23:58:25,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.5078369905956113) internal successors, (481), 319 states have internal predecessors, (481), 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) [2022-01-31 23:58:25,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 485 transitions. [2022-01-31 23:58:25,122 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 485 transitions. Word has length 106 [2022-01-31 23:58:25,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:25,123 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 485 transitions. [2022-01-31 23:58:25,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:25,123 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 485 transitions. [2022-01-31 23:58:25,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-31 23:58:25,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:25,124 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:25,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 23:58:25,124 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:25,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:25,124 INFO L85 PathProgramCache]: Analyzing trace with hash 2124739958, now seen corresponding path program 1 times [2022-01-31 23:58:25,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:25,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [221543808] [2022-01-31 23:58:25,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:25,136 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:25,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:25,140 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:25,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:25,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:25,219 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:25,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [221543808] [2022-01-31 23:58:25,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [221543808] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:25,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:25,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:25,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305373851] [2022-01-31 23:58:25,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:25,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:25,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:25,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:25,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:25,220 INFO L87 Difference]: Start difference. First operand 324 states and 485 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:27,228 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 [] [2022-01-31 23:58:27,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:27,564 INFO L93 Difference]: Finished difference Result 634 states and 956 transitions. [2022-01-31 23:58:27,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:27,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 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 106 [2022-01-31 23:58:27,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:27,581 INFO L225 Difference]: With dead ends: 634 [2022-01-31 23:58:27,581 INFO L226 Difference]: Without dead ends: 336 [2022-01-31 23:58:27,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:27,583 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 34 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:27,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 566 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 417 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:58:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-01-31 23:58:27,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 324. [2022-01-31 23:58:27,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.5047021943573669) internal successors, (480), 319 states have internal predecessors, (480), 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) [2022-01-31 23:58:27,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 484 transitions. [2022-01-31 23:58:27,595 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 484 transitions. Word has length 106 [2022-01-31 23:58:27,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:27,595 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 484 transitions. [2022-01-31 23:58:27,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:27,595 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 484 transitions. [2022-01-31 23:58:27,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-31 23:58:27,596 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:27,596 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:27,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 23:58:27,596 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:27,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:27,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1129045740, now seen corresponding path program 1 times [2022-01-31 23:58:27,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:27,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653277471] [2022-01-31 23:58:27,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:27,606 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:27,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:27,611 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:27,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:27,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:27,717 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:27,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653277471] [2022-01-31 23:58:27,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [653277471] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:27,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:27,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:27,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755568767] [2022-01-31 23:58:27,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:27,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:27,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:27,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:27,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:27,718 INFO L87 Difference]: Start difference. First operand 324 states and 484 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:29,726 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 [] [2022-01-31 23:58:30,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:30,141 INFO L93 Difference]: Finished difference Result 662 states and 992 transitions. [2022-01-31 23:58:30,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:30,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 107 [2022-01-31 23:58:30,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:30,142 INFO L225 Difference]: With dead ends: 662 [2022-01-31 23:58:30,142 INFO L226 Difference]: Without dead ends: 364 [2022-01-31 23:58:30,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:30,143 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 87 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:30,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 462 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:30,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-01-31 23:58:30,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 324. [2022-01-31 23:58:30,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.5015673981191222) internal successors, (479), 319 states have internal predecessors, (479), 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) [2022-01-31 23:58:30,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 483 transitions. [2022-01-31 23:58:30,154 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 483 transitions. Word has length 107 [2022-01-31 23:58:30,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:30,154 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 483 transitions. [2022-01-31 23:58:30,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:30,155 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 483 transitions. [2022-01-31 23:58:30,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-31 23:58:30,156 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:30,156 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:30,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 23:58:30,156 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:30,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:30,156 INFO L85 PathProgramCache]: Analyzing trace with hash -568345962, now seen corresponding path program 1 times [2022-01-31 23:58:30,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:30,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455356905] [2022-01-31 23:58:30,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:30,166 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:30,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:30,171 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:30,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:30,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:30,248 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:30,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455356905] [2022-01-31 23:58:30,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1455356905] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:30,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:30,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:30,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142069220] [2022-01-31 23:58:30,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:30,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:30,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:30,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:30,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:30,249 INFO L87 Difference]: Start difference. First operand 324 states and 483 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:32,257 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 [] [2022-01-31 23:58:32,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:32,612 INFO L93 Difference]: Finished difference Result 633 states and 951 transitions. [2022-01-31 23:58:32,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:32,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 107 [2022-01-31 23:58:32,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:32,614 INFO L225 Difference]: With dead ends: 633 [2022-01-31 23:58:32,614 INFO L226 Difference]: Without dead ends: 335 [2022-01-31 23:58:32,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:32,615 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 31 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:32,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 564 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 412 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:58:32,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-01-31 23:58:32,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 324. [2022-01-31 23:58:32,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.4984326018808778) internal successors, (478), 319 states have internal predecessors, (478), 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) [2022-01-31 23:58:32,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 482 transitions. [2022-01-31 23:58:32,643 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 482 transitions. Word has length 107 [2022-01-31 23:58:32,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:32,644 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 482 transitions. [2022-01-31 23:58:32,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:32,644 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 482 transitions. [2022-01-31 23:58:32,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-31 23:58:32,645 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:32,645 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:32,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 23:58:32,645 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:32,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:32,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1080577257, now seen corresponding path program 1 times [2022-01-31 23:58:32,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:32,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793042899] [2022-01-31 23:58:32,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:32,658 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:32,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:32,664 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:32,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:32,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:32,742 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:32,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793042899] [2022-01-31 23:58:32,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1793042899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:32,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:32,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:32,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850755261] [2022-01-31 23:58:32,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:32,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:32,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:32,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:32,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:32,744 INFO L87 Difference]: Start difference. First operand 324 states and 482 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:34,752 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 [] [2022-01-31 23:58:35,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:35,136 INFO L93 Difference]: Finished difference Result 662 states and 988 transitions. [2022-01-31 23:58:35,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:35,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-01-31 23:58:35,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:35,137 INFO L225 Difference]: With dead ends: 662 [2022-01-31 23:58:35,137 INFO L226 Difference]: Without dead ends: 364 [2022-01-31 23:58:35,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:35,138 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 80 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:35,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 474 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:35,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-01-31 23:58:35,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 324. [2022-01-31 23:58:35,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.4952978056426331) internal successors, (477), 319 states have internal predecessors, (477), 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) [2022-01-31 23:58:35,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 481 transitions. [2022-01-31 23:58:35,148 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 481 transitions. Word has length 115 [2022-01-31 23:58:35,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:35,148 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 481 transitions. [2022-01-31 23:58:35,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:35,148 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 481 transitions. [2022-01-31 23:58:35,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-31 23:58:35,149 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:35,149 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:35,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 23:58:35,149 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:35,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:35,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1998236313, now seen corresponding path program 1 times [2022-01-31 23:58:35,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:35,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999635443] [2022-01-31 23:58:35,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:35,166 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:35,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:35,171 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:35,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:35,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:35,266 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:35,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999635443] [2022-01-31 23:58:35,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1999635443] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:35,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:35,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:58:35,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099568078] [2022-01-31 23:58:35,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:35,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:58:35,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:35,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:58:35,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:35,268 INFO L87 Difference]: Start difference. First operand 324 states and 481 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:37,283 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 [] [2022-01-31 23:58:37,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:37,544 INFO L93 Difference]: Finished difference Result 899 states and 1357 transitions. [2022-01-31 23:58:37,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 23:58:37,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-01-31 23:58:37,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:37,546 INFO L225 Difference]: With dead ends: 899 [2022-01-31 23:58:37,546 INFO L226 Difference]: Without dead ends: 601 [2022-01-31 23:58:37,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:37,547 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 131 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:37,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 433 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 262 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:58:37,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-01-31 23:58:37,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2022-01-31 23:58:37,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 596 states have (on average 1.5033557046979866) internal successors, (896), 596 states have internal predecessors, (896), 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) [2022-01-31 23:58:37,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 900 transitions. [2022-01-31 23:58:37,568 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 900 transitions. Word has length 115 [2022-01-31 23:58:37,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:37,568 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 900 transitions. [2022-01-31 23:58:37,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:37,568 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 900 transitions. [2022-01-31 23:58:37,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-31 23:58:37,569 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:37,569 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:37,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 23:58:37,570 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:37,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:37,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1505610139, now seen corresponding path program 1 times [2022-01-31 23:58:37,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:37,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716770863] [2022-01-31 23:58:37,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:37,585 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:37,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:37,592 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:37,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:37,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:37,663 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:37,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716770863] [2022-01-31 23:58:37,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [716770863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:37,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:37,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:58:37,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860343455] [2022-01-31 23:58:37,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:37,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:58:37,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:37,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:58:37,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:37,664 INFO L87 Difference]: Start difference. First operand 601 states and 900 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:39,671 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 [] [2022-01-31 23:58:39,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:39,970 INFO L93 Difference]: Finished difference Result 1203 states and 1807 transitions. [2022-01-31 23:58:39,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 23:58:39,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-01-31 23:58:39,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:39,972 INFO L225 Difference]: With dead ends: 1203 [2022-01-31 23:58:39,972 INFO L226 Difference]: Without dead ends: 628 [2022-01-31 23:58:39,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:39,974 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 15 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:39,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 411 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 232 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:58:39,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2022-01-31 23:58:39,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2022-01-31 23:58:39,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 623 states have (on average 1.4943820224719102) internal successors, (931), 623 states have internal predecessors, (931), 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) [2022-01-31 23:58:39,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 935 transitions. [2022-01-31 23:58:39,993 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 935 transitions. Word has length 115 [2022-01-31 23:58:39,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:39,993 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 935 transitions. [2022-01-31 23:58:39,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:39,993 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 935 transitions. [2022-01-31 23:58:39,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-31 23:58:39,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:39,994 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:39,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 23:58:39,994 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:39,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:39,995 INFO L85 PathProgramCache]: Analyzing trace with hash 734876573, now seen corresponding path program 1 times [2022-01-31 23:58:39,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:39,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203250484] [2022-01-31 23:58:39,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:40,008 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:40,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:40,014 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:40,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:40,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:40,091 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:40,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203250484] [2022-01-31 23:58:40,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1203250484] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:40,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:40,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:58:40,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194964202] [2022-01-31 23:58:40,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:40,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:58:40,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:40,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:58:40,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:40,093 INFO L87 Difference]: Start difference. First operand 628 states and 935 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:42,105 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 [] [2022-01-31 23:58:42,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:42,351 INFO L93 Difference]: Finished difference Result 1232 states and 1843 transitions. [2022-01-31 23:58:42,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 23:58:42,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-01-31 23:58:42,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:42,353 INFO L225 Difference]: With dead ends: 1232 [2022-01-31 23:58:42,353 INFO L226 Difference]: Without dead ends: 630 [2022-01-31 23:58:42,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:42,355 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 4 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:42,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 390 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-01-31 23:58:42,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-01-31 23:58:42,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 630. [2022-01-31 23:58:42,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 625 states have (on average 1.4928) internal successors, (933), 625 states have internal predecessors, (933), 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) [2022-01-31 23:58:42,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 937 transitions. [2022-01-31 23:58:42,374 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 937 transitions. Word has length 115 [2022-01-31 23:58:42,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:42,374 INFO L470 AbstractCegarLoop]: Abstraction has 630 states and 937 transitions. [2022-01-31 23:58:42,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:42,374 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 937 transitions. [2022-01-31 23:58:42,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-31 23:58:42,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:42,375 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:42,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 23:58:42,375 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:42,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:42,376 INFO L85 PathProgramCache]: Analyzing trace with hash 350138197, now seen corresponding path program 1 times [2022-01-31 23:58:42,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:42,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785027756] [2022-01-31 23:58:42,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:42,398 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:42,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:42,404 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:42,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:42,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:42,498 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:42,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785027756] [2022-01-31 23:58:42,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [785027756] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:42,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:42,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:58:42,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625401321] [2022-01-31 23:58:42,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:42,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:58:42,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:42,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:58:42,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:42,499 INFO L87 Difference]: Start difference. First operand 630 states and 937 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:44,508 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 [] [2022-01-31 23:58:44,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:44,959 INFO L93 Difference]: Finished difference Result 1524 states and 2287 transitions. [2022-01-31 23:58:44,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 23:58:44,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-01-31 23:58:44,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:44,962 INFO L225 Difference]: With dead ends: 1524 [2022-01-31 23:58:44,962 INFO L226 Difference]: Without dead ends: 922 [2022-01-31 23:58:44,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:44,965 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 135 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:44,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 568 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 397 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:44,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2022-01-31 23:58:44,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 922. [2022-01-31 23:58:45,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 917 states have (on average 1.4961832061068703) internal successors, (1372), 917 states have internal predecessors, (1372), 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) [2022-01-31 23:58:45,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1376 transitions. [2022-01-31 23:58:45,005 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1376 transitions. Word has length 133 [2022-01-31 23:58:45,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:45,005 INFO L470 AbstractCegarLoop]: Abstraction has 922 states and 1376 transitions. [2022-01-31 23:58:45,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:45,005 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1376 transitions. [2022-01-31 23:58:45,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-31 23:58:45,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:45,007 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:45,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 23:58:45,007 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:45,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:45,007 INFO L85 PathProgramCache]: Analyzing trace with hash 2050126605, now seen corresponding path program 1 times [2022-01-31 23:58:45,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:45,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230873739] [2022-01-31 23:58:45,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:45,038 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:45,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:45,052 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:45,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:45,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:45,156 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:45,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230873739] [2022-01-31 23:58:45,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [230873739] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:45,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:45,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:45,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285277182] [2022-01-31 23:58:45,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:45,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:45,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:45,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:45,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:45,157 INFO L87 Difference]: Start difference. First operand 922 states and 1376 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:47,172 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 [] [2022-01-31 23:58:47,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:47,722 INFO L93 Difference]: Finished difference Result 1967 states and 2949 transitions. [2022-01-31 23:58:47,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:47,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-01-31 23:58:47,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:47,726 INFO L225 Difference]: With dead ends: 1967 [2022-01-31 23:58:47,726 INFO L226 Difference]: Without dead ends: 1073 [2022-01-31 23:58:47,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:47,728 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 79 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:47,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 645 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 613 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 23:58:47,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-01-31 23:58:47,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 966. [2022-01-31 23:58:47,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 961 states have (on average 1.5171696149843912) internal successors, (1458), 961 states have internal predecessors, (1458), 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) [2022-01-31 23:58:47,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1462 transitions. [2022-01-31 23:58:47,758 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1462 transitions. Word has length 173 [2022-01-31 23:58:47,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:47,759 INFO L470 AbstractCegarLoop]: Abstraction has 966 states and 1462 transitions. [2022-01-31 23:58:47,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:47,759 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1462 transitions. [2022-01-31 23:58:47,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-01-31 23:58:47,760 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:47,760 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:47,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 23:58:47,761 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:47,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:47,761 INFO L85 PathProgramCache]: Analyzing trace with hash -535118581, now seen corresponding path program 1 times [2022-01-31 23:58:47,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:47,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652160440] [2022-01-31 23:58:47,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:47,827 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:47,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:47,835 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:47,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:47,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:47,928 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:47,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652160440] [2022-01-31 23:58:47,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [652160440] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:47,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:47,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:47,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528232809] [2022-01-31 23:58:47,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:47,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:47,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:47,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:47,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:47,929 INFO L87 Difference]: Start difference. First operand 966 states and 1462 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:49,937 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 [] [2022-01-31 23:58:50,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:50,401 INFO L93 Difference]: Finished difference Result 2093 states and 3146 transitions. [2022-01-31 23:58:50,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:50,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-01-31 23:58:50,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:50,405 INFO L225 Difference]: With dead ends: 2093 [2022-01-31 23:58:50,405 INFO L226 Difference]: Without dead ends: 1155 [2022-01-31 23:58:50,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:50,407 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 103 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:50,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 339 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:50,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-01-31 23:58:50,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 968. [2022-01-31 23:58:50,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.509865005192108) internal successors, (1454), 963 states have internal predecessors, (1454), 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) [2022-01-31 23:58:50,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1458 transitions. [2022-01-31 23:58:50,486 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1458 transitions. Word has length 174 [2022-01-31 23:58:50,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:50,487 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1458 transitions. [2022-01-31 23:58:50,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:50,487 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1458 transitions. [2022-01-31 23:58:50,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-01-31 23:58:50,488 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:50,488 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:50,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 23:58:50,489 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:50,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:50,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1155536889, now seen corresponding path program 1 times [2022-01-31 23:58:50,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:50,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [987122568] [2022-01-31 23:58:50,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:50,529 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:50,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:50,536 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:50,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:50,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:50,634 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:50,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [987122568] [2022-01-31 23:58:50,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [987122568] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:50,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:50,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:50,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636681592] [2022-01-31 23:58:50,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:50,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:50,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:50,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:50,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:50,635 INFO L87 Difference]: Start difference. First operand 968 states and 1458 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:52,643 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 [] [2022-01-31 23:58:53,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:53,070 INFO L93 Difference]: Finished difference Result 2089 states and 3128 transitions. [2022-01-31 23:58:53,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:53,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 186 [2022-01-31 23:58:53,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:53,074 INFO L225 Difference]: With dead ends: 2089 [2022-01-31 23:58:53,074 INFO L226 Difference]: Without dead ends: 1149 [2022-01-31 23:58:53,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:53,090 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 126 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:53,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 343 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 448 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:53,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2022-01-31 23:58:53,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 968. [2022-01-31 23:58:53,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.5046728971962617) internal successors, (1449), 963 states have internal predecessors, (1449), 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) [2022-01-31 23:58:53,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1453 transitions. [2022-01-31 23:58:53,127 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1453 transitions. Word has length 186 [2022-01-31 23:58:53,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:53,127 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1453 transitions. [2022-01-31 23:58:53,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:53,127 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1453 transitions. [2022-01-31 23:58:53,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-01-31 23:58:53,130 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:53,130 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:53,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-31 23:58:53,130 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:53,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:53,131 INFO L85 PathProgramCache]: Analyzing trace with hash -774488485, now seen corresponding path program 1 times [2022-01-31 23:58:53,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:53,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679946319] [2022-01-31 23:58:53,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:53,163 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:53,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:53,169 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:53,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:53,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:53,258 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:53,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679946319] [2022-01-31 23:58:53,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [679946319] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:53,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:53,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:53,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778530834] [2022-01-31 23:58:53,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:53,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:53,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:53,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:53,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:53,259 INFO L87 Difference]: Start difference. First operand 968 states and 1453 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:55,267 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 [] [2022-01-31 23:58:55,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:55,749 INFO L93 Difference]: Finished difference Result 2092 states and 3121 transitions. [2022-01-31 23:58:55,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:55,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 187 [2022-01-31 23:58:55,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:55,753 INFO L225 Difference]: With dead ends: 2092 [2022-01-31 23:58:55,753 INFO L226 Difference]: Without dead ends: 1152 [2022-01-31 23:58:55,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:55,755 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 124 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:55,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 347 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:55,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-01-31 23:58:55,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 968. [2022-01-31 23:58:55,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4994807892004154) internal successors, (1444), 963 states have internal predecessors, (1444), 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) [2022-01-31 23:58:55,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1448 transitions. [2022-01-31 23:58:55,791 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1448 transitions. Word has length 187 [2022-01-31 23:58:55,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:55,792 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1448 transitions. [2022-01-31 23:58:55,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:55,792 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1448 transitions. [2022-01-31 23:58:55,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-31 23:58:55,793 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:55,793 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:55,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-31 23:58:55,794 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:55,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:55,794 INFO L85 PathProgramCache]: Analyzing trace with hash -871074358, now seen corresponding path program 1 times [2022-01-31 23:58:55,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:55,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42772772] [2022-01-31 23:58:55,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:04,712 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:04,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:04,719 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:04,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:04,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:04,818 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:04,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42772772] [2022-01-31 23:59:04,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [42772772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:04,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:04,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:04,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103995216] [2022-01-31 23:59:04,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:04,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:04,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:04,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:04,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:04,819 INFO L87 Difference]: Start difference. First operand 968 states and 1448 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:06,828 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 [] [2022-01-31 23:59:07,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:07,333 INFO L93 Difference]: Finished difference Result 2092 states and 3111 transitions. [2022-01-31 23:59:07,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:07,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 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 195 [2022-01-31 23:59:07,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:07,337 INFO L225 Difference]: With dead ends: 2092 [2022-01-31 23:59:07,337 INFO L226 Difference]: Without dead ends: 1152 [2022-01-31 23:59:07,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:07,339 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 119 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:07,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 394 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:07,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-01-31 23:59:07,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 968. [2022-01-31 23:59:07,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4880581516095535) internal successors, (1433), 963 states have internal predecessors, (1433), 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) [2022-01-31 23:59:07,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1437 transitions. [2022-01-31 23:59:07,379 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1437 transitions. Word has length 195 [2022-01-31 23:59:07,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:07,380 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1437 transitions. [2022-01-31 23:59:07,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:07,380 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1437 transitions. [2022-01-31 23:59:07,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-31 23:59:07,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:07,381 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:07,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-31 23:59:07,382 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:07,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:07,382 INFO L85 PathProgramCache]: Analyzing trace with hash -376578056, now seen corresponding path program 1 times [2022-01-31 23:59:07,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:07,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605054184] [2022-01-31 23:59:07,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:07,416 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:07,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:07,424 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:07,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:07,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:07,554 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:07,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605054184] [2022-01-31 23:59:07,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [605054184] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:07,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:07,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:07,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221631006] [2022-01-31 23:59:07,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:07,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:07,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:07,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:07,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:07,555 INFO L87 Difference]: Start difference. First operand 968 states and 1437 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:09,565 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 [] [2022-01-31 23:59:10,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:10,098 INFO L93 Difference]: Finished difference Result 2001 states and 2965 transitions. [2022-01-31 23:59:10,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:10,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 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 195 [2022-01-31 23:59:10,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:10,127 INFO L225 Difference]: With dead ends: 2001 [2022-01-31 23:59:10,127 INFO L226 Difference]: Without dead ends: 1061 [2022-01-31 23:59:10,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:10,129 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 85 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:10,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 631 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 584 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 23:59:10,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-01-31 23:59:10,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 968. [2022-01-31 23:59:10,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.485981308411215) internal successors, (1431), 963 states have internal predecessors, (1431), 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) [2022-01-31 23:59:10,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1435 transitions. [2022-01-31 23:59:10,191 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1435 transitions. Word has length 195 [2022-01-31 23:59:10,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:10,192 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1435 transitions. [2022-01-31 23:59:10,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:10,192 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1435 transitions. [2022-01-31 23:59:10,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-31 23:59:10,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:10,194 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:10,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-31 23:59:10,194 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:10,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:10,194 INFO L85 PathProgramCache]: Analyzing trace with hash -129245295, now seen corresponding path program 1 times [2022-01-31 23:59:10,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:10,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839054494] [2022-01-31 23:59:10,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:10,230 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:10,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:10,238 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:10,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:10,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:10,349 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:10,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839054494] [2022-01-31 23:59:10,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1839054494] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:10,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:10,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:10,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405738688] [2022-01-31 23:59:10,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:10,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:10,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:10,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:10,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:10,352 INFO L87 Difference]: Start difference. First operand 968 states and 1435 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:12,367 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 [] [2022-01-31 23:59:12,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:12,942 INFO L93 Difference]: Finished difference Result 1993 states and 2951 transitions. [2022-01-31 23:59:12,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:12,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 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 196 [2022-01-31 23:59:12,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:12,945 INFO L225 Difference]: With dead ends: 1993 [2022-01-31 23:59:12,945 INFO L226 Difference]: Without dead ends: 1053 [2022-01-31 23:59:12,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:12,947 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 79 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:12,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 623 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 573 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 23:59:12,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2022-01-31 23:59:12,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 968. [2022-01-31 23:59:12,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4839044652128763) internal successors, (1429), 963 states have internal predecessors, (1429), 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) [2022-01-31 23:59:12,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1433 transitions. [2022-01-31 23:59:12,987 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1433 transitions. Word has length 196 [2022-01-31 23:59:12,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:12,987 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1433 transitions. [2022-01-31 23:59:12,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:12,987 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1433 transitions. [2022-01-31 23:59:12,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-31 23:59:12,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:12,989 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:12,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-31 23:59:12,990 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:12,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:12,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1443418627, now seen corresponding path program 1 times [2022-01-31 23:59:12,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:12,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869301271] [2022-01-31 23:59:12,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:21,339 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:21,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:21,346 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:21,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:21,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:21,438 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:21,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869301271] [2022-01-31 23:59:21,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1869301271] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:21,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:21,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:21,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492447928] [2022-01-31 23:59:21,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:21,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:21,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:21,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:21,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:21,439 INFO L87 Difference]: Start difference. First operand 968 states and 1433 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:23,455 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 [] [2022-01-31 23:59:23,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:23,945 INFO L93 Difference]: Finished difference Result 2092 states and 3081 transitions. [2022-01-31 23:59:23,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:23,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 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 196 [2022-01-31 23:59:23,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:23,948 INFO L225 Difference]: With dead ends: 2092 [2022-01-31 23:59:23,948 INFO L226 Difference]: Without dead ends: 1152 [2022-01-31 23:59:23,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:23,949 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 118 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:23,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 347 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:23,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-01-31 23:59:23,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 968. [2022-01-31 23:59:23,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4724818276220146) internal successors, (1418), 963 states have internal predecessors, (1418), 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) [2022-01-31 23:59:23,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1422 transitions. [2022-01-31 23:59:23,990 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1422 transitions. Word has length 196 [2022-01-31 23:59:23,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:23,991 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1422 transitions. [2022-01-31 23:59:23,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:23,991 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1422 transitions. [2022-01-31 23:59:23,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-31 23:59:23,993 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:23,993 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:23,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-31 23:59:23,993 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:23,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:23,993 INFO L85 PathProgramCache]: Analyzing trace with hash 560829110, now seen corresponding path program 1 times [2022-01-31 23:59:23,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:23,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904436978] [2022-01-31 23:59:23,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:24,026 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:24,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:24,034 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:24,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:24,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:24,141 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:24,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904436978] [2022-01-31 23:59:24,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1904436978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:24,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:24,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:24,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147480798] [2022-01-31 23:59:24,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:24,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:24,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:24,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:24,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:24,142 INFO L87 Difference]: Start difference. First operand 968 states and 1422 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:26,149 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 [] [2022-01-31 23:59:26,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:26,668 INFO L93 Difference]: Finished difference Result 1983 states and 2911 transitions. [2022-01-31 23:59:26,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:26,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 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 198 [2022-01-31 23:59:26,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:26,671 INFO L225 Difference]: With dead ends: 1983 [2022-01-31 23:59:26,671 INFO L226 Difference]: Without dead ends: 1043 [2022-01-31 23:59:26,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:26,674 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 70 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:26,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 613 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 557 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:26,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2022-01-31 23:59:26,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 968. [2022-01-31 23:59:26,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.470404984423676) internal successors, (1416), 963 states have internal predecessors, (1416), 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) [2022-01-31 23:59:26,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1420 transitions. [2022-01-31 23:59:26,721 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1420 transitions. Word has length 198 [2022-01-31 23:59:26,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:26,721 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1420 transitions. [2022-01-31 23:59:26,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:26,722 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1420 transitions. [2022-01-31 23:59:26,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-01-31 23:59:26,723 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:26,724 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:26,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-31 23:59:26,724 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:26,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:26,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1175455299, now seen corresponding path program 1 times [2022-01-31 23:59:26,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:26,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481348051] [2022-01-31 23:59:26,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:26,772 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:26,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:26,780 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:26,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:26,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:26,881 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:26,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481348051] [2022-01-31 23:59:26,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1481348051] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:26,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:26,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:26,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319218443] [2022-01-31 23:59:26,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:26,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:26,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:26,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:26,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:26,883 INFO L87 Difference]: Start difference. First operand 968 states and 1420 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:28,890 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 [] [2022-01-31 23:59:29,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:29,382 INFO L93 Difference]: Finished difference Result 2092 states and 3055 transitions. [2022-01-31 23:59:29,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:29,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 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 199 [2022-01-31 23:59:29,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:29,385 INFO L225 Difference]: With dead ends: 2092 [2022-01-31 23:59:29,385 INFO L226 Difference]: Without dead ends: 1152 [2022-01-31 23:59:29,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:29,386 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 111 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:29,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 347 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:29,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-01-31 23:59:29,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 968. [2022-01-31 23:59:29,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.462097611630322) internal successors, (1408), 963 states have internal predecessors, (1408), 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) [2022-01-31 23:59:29,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1412 transitions. [2022-01-31 23:59:29,433 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1412 transitions. Word has length 199 [2022-01-31 23:59:29,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:29,434 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1412 transitions. [2022-01-31 23:59:29,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:29,434 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1412 transitions. [2022-01-31 23:59:29,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-01-31 23:59:29,435 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:29,435 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:29,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-31 23:59:29,436 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:29,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:29,436 INFO L85 PathProgramCache]: Analyzing trace with hash -48314980, now seen corresponding path program 1 times [2022-01-31 23:59:29,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:29,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27931143] [2022-01-31 23:59:29,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:29,471 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:29,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:29,480 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:29,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:29,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:29,594 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:29,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27931143] [2022-01-31 23:59:29,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [27931143] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:29,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:29,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:29,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677550725] [2022-01-31 23:59:29,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:29,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:29,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:29,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:29,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:29,596 INFO L87 Difference]: Start difference. First operand 968 states and 1412 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:31,623 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 [] [2022-01-31 23:59:32,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:32,122 INFO L93 Difference]: Finished difference Result 2221 states and 3243 transitions. [2022-01-31 23:59:32,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:32,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 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 200 [2022-01-31 23:59:32,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:32,126 INFO L225 Difference]: With dead ends: 2221 [2022-01-31 23:59:32,126 INFO L226 Difference]: Without dead ends: 1281 [2022-01-31 23:59:32,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:32,128 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 109 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:32,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 347 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 455 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:32,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-01-31 23:59:32,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1058. [2022-01-31 23:59:32,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4548907882241215) internal successors, (1532), 1053 states have internal predecessors, (1532), 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) [2022-01-31 23:59:32,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1536 transitions. [2022-01-31 23:59:32,214 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1536 transitions. Word has length 200 [2022-01-31 23:59:32,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:32,217 INFO L470 AbstractCegarLoop]: Abstraction has 1058 states and 1536 transitions. [2022-01-31 23:59:32,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:32,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1536 transitions. [2022-01-31 23:59:32,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-01-31 23:59:32,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:32,219 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:32,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-31 23:59:32,219 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:32,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:32,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1919416195, now seen corresponding path program 1 times [2022-01-31 23:59:32,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:32,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469160015] [2022-01-31 23:59:32,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:32,258 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:32,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:32,267 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:32,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:32,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:32,358 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:32,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469160015] [2022-01-31 23:59:32,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1469160015] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:32,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:32,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:32,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303847591] [2022-01-31 23:59:32,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:32,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:32,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:32,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:32,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:32,359 INFO L87 Difference]: Start difference. First operand 1058 states and 1536 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:34,367 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 [] [2022-01-31 23:59:34,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:34,844 INFO L93 Difference]: Finished difference Result 2272 states and 3287 transitions. [2022-01-31 23:59:34,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:34,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 201 [2022-01-31 23:59:34,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:34,848 INFO L225 Difference]: With dead ends: 2272 [2022-01-31 23:59:34,848 INFO L226 Difference]: Without dead ends: 1242 [2022-01-31 23:59:34,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:34,850 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 108 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:34,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 347 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:34,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2022-01-31 23:59:34,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1058. [2022-01-31 23:59:34,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4472934472934473) internal successors, (1524), 1053 states have internal predecessors, (1524), 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) [2022-01-31 23:59:34,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1528 transitions. [2022-01-31 23:59:34,907 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1528 transitions. Word has length 201 [2022-01-31 23:59:34,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:34,907 INFO L470 AbstractCegarLoop]: Abstraction has 1058 states and 1528 transitions. [2022-01-31 23:59:34,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:34,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1528 transitions. [2022-01-31 23:59:34,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-01-31 23:59:34,909 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:34,909 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:34,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-31 23:59:34,909 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:34,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:34,909 INFO L85 PathProgramCache]: Analyzing trace with hash -755326845, now seen corresponding path program 1 times [2022-01-31 23:59:34,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:34,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048437358] [2022-01-31 23:59:34,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:34,952 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:34,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:34,968 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:35,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:35,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:35,054 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:35,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048437358] [2022-01-31 23:59:35,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1048437358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:35,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:35,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:35,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269981748] [2022-01-31 23:59:35,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:35,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:35,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:35,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:35,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:35,055 INFO L87 Difference]: Start difference. First operand 1058 states and 1528 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:37,062 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 [] [2022-01-31 23:59:37,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:37,593 INFO L93 Difference]: Finished difference Result 2401 states and 3469 transitions. [2022-01-31 23:59:37,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:37,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 201 [2022-01-31 23:59:37,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:37,596 INFO L225 Difference]: With dead ends: 2401 [2022-01-31 23:59:37,596 INFO L226 Difference]: Without dead ends: 1371 [2022-01-31 23:59:37,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:37,598 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 112 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:37,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 365 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:37,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2022-01-31 23:59:37,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1136. [2022-01-31 23:59:37,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1131 states have (on average 1.435897435897436) internal successors, (1624), 1131 states have internal predecessors, (1624), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:37,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1628 transitions. [2022-01-31 23:59:37,663 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1628 transitions. Word has length 201 [2022-01-31 23:59:37,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:37,663 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 1628 transitions. [2022-01-31 23:59:37,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:37,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1628 transitions. [2022-01-31 23:59:37,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-01-31 23:59:37,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:37,665 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:37,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-31 23:59:37,665 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:37,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:37,665 INFO L85 PathProgramCache]: Analyzing trace with hash 153074876, now seen corresponding path program 1 times [2022-01-31 23:59:37,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:37,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951821454] [2022-01-31 23:59:37,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:37,705 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:37,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:37,713 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:37,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:37,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:37,825 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:37,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951821454] [2022-01-31 23:59:37,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1951821454] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:37,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:37,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:37,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355458757] [2022-01-31 23:59:37,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:37,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:37,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:37,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:37,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:37,826 INFO L87 Difference]: Start difference. First operand 1136 states and 1628 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:39,833 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 [] [2022-01-31 23:59:40,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:40,359 INFO L93 Difference]: Finished difference Result 2428 states and 3471 transitions. [2022-01-31 23:59:40,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:40,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 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 202 [2022-01-31 23:59:40,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:40,365 INFO L225 Difference]: With dead ends: 2428 [2022-01-31 23:59:40,365 INFO L226 Difference]: Without dead ends: 1320 [2022-01-31 23:59:40,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:40,367 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 111 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:40,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 349 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:40,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2022-01-31 23:59:40,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1136. [2022-01-31 23:59:40,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1131 states have (on average 1.4261715296198054) internal successors, (1613), 1131 states have internal predecessors, (1613), 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) [2022-01-31 23:59:40,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1617 transitions. [2022-01-31 23:59:40,464 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1617 transitions. Word has length 202 [2022-01-31 23:59:40,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:40,464 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 1617 transitions. [2022-01-31 23:59:40,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:40,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1617 transitions. [2022-01-31 23:59:40,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-01-31 23:59:40,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:40,466 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:40,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-31 23:59:40,466 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:40,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:40,466 INFO L85 PathProgramCache]: Analyzing trace with hash -91334031, now seen corresponding path program 1 times [2022-01-31 23:59:40,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:40,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292393220] [2022-01-31 23:59:40,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:40,499 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:40,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:40,508 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:40,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:40,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:40,592 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:40,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [292393220] [2022-01-31 23:59:40,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [292393220] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:40,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:40,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:40,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391809539] [2022-01-31 23:59:40,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:40,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:40,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:40,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:40,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:40,593 INFO L87 Difference]: Start difference. First operand 1136 states and 1617 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:42,627 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 [] [2022-01-31 23:59:43,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:43,133 INFO L93 Difference]: Finished difference Result 2287 states and 3255 transitions. [2022-01-31 23:59:43,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:43,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 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 203 [2022-01-31 23:59:43,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:43,136 INFO L225 Difference]: With dead ends: 2287 [2022-01-31 23:59:43,136 INFO L226 Difference]: Without dead ends: 1179 [2022-01-31 23:59:43,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:43,138 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 47 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:43,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 587 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:43,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2022-01-31 23:59:43,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1136. [2022-01-31 23:59:43,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1131 states have (on average 1.4244031830238726) internal successors, (1611), 1131 states have internal predecessors, (1611), 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) [2022-01-31 23:59:43,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1615 transitions. [2022-01-31 23:59:43,225 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1615 transitions. Word has length 203 [2022-01-31 23:59:43,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:43,226 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 1615 transitions. [2022-01-31 23:59:43,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:43,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1615 transitions. [2022-01-31 23:59:43,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-01-31 23:59:43,227 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:43,227 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:43,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-31 23:59:43,228 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:43,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:43,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1373437561, now seen corresponding path program 1 times [2022-01-31 23:59:43,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:43,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674175517] [2022-01-31 23:59:43,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:43,262 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:43,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:43,271 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:43,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:43,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:43,356 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:43,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674175517] [2022-01-31 23:59:43,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1674175517] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:43,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:43,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:43,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003267120] [2022-01-31 23:59:43,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:43,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:43,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:43,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:43,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:43,357 INFO L87 Difference]: Start difference. First operand 1136 states and 1615 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:45,366 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 [] [2022-01-31 23:59:45,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:45,894 INFO L93 Difference]: Finished difference Result 2557 states and 3637 transitions. [2022-01-31 23:59:45,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:45,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 204 [2022-01-31 23:59:45,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:45,897 INFO L225 Difference]: With dead ends: 2557 [2022-01-31 23:59:45,897 INFO L226 Difference]: Without dead ends: 1449 [2022-01-31 23:59:45,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:45,899 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 104 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:45,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 347 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:45,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2022-01-31 23:59:46,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1235. [2022-01-31 23:59:46,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1230 states have (on average 1.4154471544715448) internal successors, (1741), 1230 states have internal predecessors, (1741), 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) [2022-01-31 23:59:46,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1745 transitions. [2022-01-31 23:59:46,005 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1745 transitions. Word has length 204 [2022-01-31 23:59:46,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:46,005 INFO L470 AbstractCegarLoop]: Abstraction has 1235 states and 1745 transitions. [2022-01-31 23:59:46,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:46,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1745 transitions. [2022-01-31 23:59:46,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-01-31 23:59:46,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:46,007 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:46,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-31 23:59:46,008 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:46,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:46,008 INFO L85 PathProgramCache]: Analyzing trace with hash 711850651, now seen corresponding path program 1 times [2022-01-31 23:59:46,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:46,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284840327] [2022-01-31 23:59:46,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:46,050 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:46,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:46,059 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:46,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:46,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:46,151 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:46,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284840327] [2022-01-31 23:59:46,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [284840327] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:46,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:46,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:46,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723528463] [2022-01-31 23:59:46,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:46,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:46,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:46,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:46,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:46,152 INFO L87 Difference]: Start difference. First operand 1235 states and 1745 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:48,165 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 [] [2022-01-31 23:59:48,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:48,620 INFO L93 Difference]: Finished difference Result 2477 states and 3501 transitions. [2022-01-31 23:59:48,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:48,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 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 205 [2022-01-31 23:59:48,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:48,622 INFO L225 Difference]: With dead ends: 2477 [2022-01-31 23:59:48,622 INFO L226 Difference]: Without dead ends: 1270 [2022-01-31 23:59:48,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:48,624 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 40 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:48,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 577 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:59:48,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2022-01-31 23:59:48,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1235. [2022-01-31 23:59:48,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1230 states have (on average 1.4138211382113821) internal successors, (1739), 1230 states have internal predecessors, (1739), 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) [2022-01-31 23:59:48,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1743 transitions. [2022-01-31 23:59:48,706 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1743 transitions. Word has length 205 [2022-01-31 23:59:48,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:48,706 INFO L470 AbstractCegarLoop]: Abstraction has 1235 states and 1743 transitions. [2022-01-31 23:59:48,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:48,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1743 transitions. [2022-01-31 23:59:48,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-01-31 23:59:48,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:48,708 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:48,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-31 23:59:48,709 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:48,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:48,709 INFO L85 PathProgramCache]: Analyzing trace with hash 848203501, now seen corresponding path program 1 times [2022-01-31 23:59:48,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:48,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1976787365] [2022-01-31 23:59:48,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:48,743 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:48,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:48,752 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:48,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:48,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:48,864 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:48,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1976787365] [2022-01-31 23:59:48,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1976787365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:48,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:48,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:48,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546245658] [2022-01-31 23:59:48,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:48,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:48,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:48,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:48,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:48,865 INFO L87 Difference]: Start difference. First operand 1235 states and 1743 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:50,875 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 [] [2022-01-31 23:59:51,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:51,367 INFO L93 Difference]: Finished difference Result 2477 states and 3497 transitions. [2022-01-31 23:59:51,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:51,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 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 205 [2022-01-31 23:59:51,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:51,369 INFO L225 Difference]: With dead ends: 2477 [2022-01-31 23:59:51,370 INFO L226 Difference]: Without dead ends: 1270 [2022-01-31 23:59:51,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:51,372 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 38 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:51,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 575 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:51,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2022-01-31 23:59:51,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1235. [2022-01-31 23:59:51,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1230 states have (on average 1.4121951219512194) internal successors, (1737), 1230 states have internal predecessors, (1737), 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) [2022-01-31 23:59:51,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1741 transitions. [2022-01-31 23:59:51,480 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1741 transitions. Word has length 205 [2022-01-31 23:59:51,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:51,480 INFO L470 AbstractCegarLoop]: Abstraction has 1235 states and 1741 transitions. [2022-01-31 23:59:51,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:51,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1741 transitions. [2022-01-31 23:59:51,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-01-31 23:59:51,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:51,482 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:51,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-31 23:59:51,482 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:51,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:51,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1608615851, now seen corresponding path program 1 times [2022-01-31 23:59:51,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:51,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478420821] [2022-01-31 23:59:51,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:51,518 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:51,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:51,528 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:51,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:51,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:51,616 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:51,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478420821] [2022-01-31 23:59:51,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1478420821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:51,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:51,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:51,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503947633] [2022-01-31 23:59:51,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:51,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:51,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:51,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:51,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:51,617 INFO L87 Difference]: Start difference. First operand 1235 states and 1741 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:53,624 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 [] [2022-01-31 23:59:54,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:54,137 INFO L93 Difference]: Finished difference Result 2473 states and 3489 transitions. [2022-01-31 23:59:54,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:54,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 206 [2022-01-31 23:59:54,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:54,140 INFO L225 Difference]: With dead ends: 2473 [2022-01-31 23:59:54,140 INFO L226 Difference]: Without dead ends: 1266 [2022-01-31 23:59:54,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:54,142 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 35 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:54,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 571 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:54,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2022-01-31 23:59:54,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1235. [2022-01-31 23:59:54,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1230 states have (on average 1.410569105691057) internal successors, (1735), 1230 states have internal predecessors, (1735), 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) [2022-01-31 23:59:54,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1739 transitions. [2022-01-31 23:59:54,225 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1739 transitions. Word has length 206 [2022-01-31 23:59:54,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:54,225 INFO L470 AbstractCegarLoop]: Abstraction has 1235 states and 1739 transitions. [2022-01-31 23:59:54,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:54,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1739 transitions. [2022-01-31 23:59:54,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-01-31 23:59:54,227 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:54,228 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:54,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-31 23:59:54,228 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:54,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:54,228 INFO L85 PathProgramCache]: Analyzing trace with hash 15356690, now seen corresponding path program 1 times [2022-01-31 23:59:54,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:54,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1135151229] [2022-01-31 23:59:54,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:54,302 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:54,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:54,314 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:54,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:54,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:54,410 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:54,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1135151229] [2022-01-31 23:59:54,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1135151229] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:54,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:54,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:54,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256710826] [2022-01-31 23:59:54,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:54,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:54,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:54,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:54,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:54,411 INFO L87 Difference]: Start difference. First operand 1235 states and 1739 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:56,420 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 [] [2022-01-31 23:59:56,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:56,883 INFO L93 Difference]: Finished difference Result 2473 states and 3485 transitions. [2022-01-31 23:59:56,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:56,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 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 207 [2022-01-31 23:59:56,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:56,886 INFO L225 Difference]: With dead ends: 2473 [2022-01-31 23:59:56,886 INFO L226 Difference]: Without dead ends: 1266 [2022-01-31 23:59:56,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:56,888 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 33 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:56,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 569 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:56,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2022-01-31 23:59:56,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1235. [2022-01-31 23:59:56,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1230 states have (on average 1.4089430894308943) internal successors, (1733), 1230 states have internal predecessors, (1733), 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) [2022-01-31 23:59:56,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1737 transitions. [2022-01-31 23:59:56,995 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1737 transitions. Word has length 207 [2022-01-31 23:59:56,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:56,996 INFO L470 AbstractCegarLoop]: Abstraction has 1235 states and 1737 transitions. [2022-01-31 23:59:56,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:56,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1737 transitions. [2022-01-31 23:59:56,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-01-31 23:59:56,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:56,997 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:56,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-31 23:59:56,997 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:56,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:56,998 INFO L85 PathProgramCache]: Analyzing trace with hash 421954800, now seen corresponding path program 1 times [2022-01-31 23:59:56,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:56,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067344050] [2022-01-31 23:59:56,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:57,034 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:57,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:57,044 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:57,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:57,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:57,137 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:57,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067344050] [2022-01-31 23:59:57,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2067344050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:57,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:57,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:57,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27568328] [2022-01-31 23:59:57,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:57,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:57,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:57,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:57,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:57,138 INFO L87 Difference]: Start difference. First operand 1235 states and 1737 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:59,145 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 [] [2022-01-31 23:59:59,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:59,642 INFO L93 Difference]: Finished difference Result 2469 states and 3477 transitions. [2022-01-31 23:59:59,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:59,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 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 208 [2022-01-31 23:59:59,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:59,645 INFO L225 Difference]: With dead ends: 2469 [2022-01-31 23:59:59,645 INFO L226 Difference]: Without dead ends: 1262 [2022-01-31 23:59:59,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:59,647 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 30 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:59,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 565 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:59,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-01-31 23:59:59,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1235. [2022-01-31 23:59:59,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1230 states have (on average 1.4073170731707316) internal successors, (1731), 1230 states have internal predecessors, (1731), 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) [2022-01-31 23:59:59,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1735 transitions. [2022-01-31 23:59:59,728 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1735 transitions. Word has length 208 [2022-01-31 23:59:59,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:59,728 INFO L470 AbstractCegarLoop]: Abstraction has 1235 states and 1735 transitions. [2022-01-31 23:59:59,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:59,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1735 transitions. [2022-01-31 23:59:59,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-01-31 23:59:59,730 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:59,730 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:59,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-31 23:59:59,730 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:59,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:59,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1233678905, now seen corresponding path program 1 times [2022-01-31 23:59:59,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:59,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976141588] [2022-01-31 23:59:59,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:05,083 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:05,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:05,095 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:05,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:05,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:05,226 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:05,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976141588] [2022-02-01 00:00:05,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [976141588] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:05,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:05,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:00:05,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887482241] [2022-02-01 00:00:05,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:05,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:00:05,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:05,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:00:05,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:00:05,230 INFO L87 Difference]: Start difference. First operand 1235 states and 1735 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:07,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:07,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:07,797 INFO L93 Difference]: Finished difference Result 2469 states and 3473 transitions. [2022-02-01 00:00:07,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:07,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 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 212 [2022-02-01 00:00:07,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:07,800 INFO L225 Difference]: With dead ends: 2469 [2022-02-01 00:00:07,800 INFO L226 Difference]: Without dead ends: 1262 [2022-02-01 00:00:07,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:07,804 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 48 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:07,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 563 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:00:07,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-02-01 00:00:07,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1235. [2022-02-01 00:00:07,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1230 states have (on average 1.4056910569105692) internal successors, (1729), 1230 states have internal predecessors, (1729), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:07,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1733 transitions. [2022-02-01 00:00:07,943 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1733 transitions. Word has length 212 [2022-02-01 00:00:07,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:07,943 INFO L470 AbstractCegarLoop]: Abstraction has 1235 states and 1733 transitions. [2022-02-01 00:00:07,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:07,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1733 transitions. [2022-02-01 00:00:07,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-02-01 00:00:07,945 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:07,946 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-01 00:00:07,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-01 00:00:07,946 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:07,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:07,946 INFO L85 PathProgramCache]: Analyzing trace with hash 574000315, now seen corresponding path program 1 times [2022-02-01 00:00:07,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:07,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111461655] [2022-02-01 00:00:07,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:14,781 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:14,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:14,792 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:14,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:14,900 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:14,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111461655] [2022-02-01 00:00:14,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2111461655] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:14,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:14,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:00:14,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457874185] [2022-02-01 00:00:14,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:14,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:00:14,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:14,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:00:14,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:00:14,901 INFO L87 Difference]: Start difference. First operand 1235 states and 1733 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:16,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:17,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:17,441 INFO L93 Difference]: Finished difference Result 2469 states and 3469 transitions. [2022-02-01 00:00:17,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:17,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-02-01 00:00:17,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:17,445 INFO L225 Difference]: With dead ends: 2469 [2022-02-01 00:00:17,445 INFO L226 Difference]: Without dead ends: 1262 [2022-02-01 00:00:17,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:17,448 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 46 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:17,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 561 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:00:17,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-02-01 00:00:17,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1235. [2022-02-01 00:00:17,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1230 states have (on average 1.4040650406504065) internal successors, (1727), 1230 states have internal predecessors, (1727), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:17,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1731 transitions. [2022-02-01 00:00:17,557 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1731 transitions. Word has length 213 [2022-02-01 00:00:17,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:17,558 INFO L470 AbstractCegarLoop]: Abstraction has 1235 states and 1731 transitions. [2022-02-01 00:00:17,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:17,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1731 transitions. [2022-02-01 00:00:17,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-02-01 00:00:17,559 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:17,560 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-01 00:00:17,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-01 00:00:17,560 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:17,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:17,560 INFO L85 PathProgramCache]: Analyzing trace with hash 960854356, now seen corresponding path program 1 times [2022-02-01 00:00:17,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:17,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880826657] [2022-02-01 00:00:17,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:23,739 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:23,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:23,754 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:23,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:23,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:23,885 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:23,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880826657] [2022-02-01 00:00:23,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1880826657] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:23,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:23,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:00:23,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996750051] [2022-02-01 00:00:23,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:23,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:00:23,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:23,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:00:23,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:00:23,887 INFO L87 Difference]: Start difference. First operand 1235 states and 1731 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:25,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:26,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:26,631 INFO L93 Difference]: Finished difference Result 2755 states and 3866 transitions. [2022-02-01 00:00:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:26,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 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 214 [2022-02-01 00:00:26,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:26,635 INFO L225 Difference]: With dead ends: 2755 [2022-02-01 00:00:26,636 INFO L226 Difference]: Without dead ends: 1548 [2022-02-01 00:00:26,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:26,639 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 116 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:26,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 347 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:00:26,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2022-02-01 00:00:26,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1298. [2022-02-01 00:00:26,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1293 states have (on average 1.3843774168600154) internal successors, (1790), 1293 states have internal predecessors, (1790), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:26,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1794 transitions. [2022-02-01 00:00:26,792 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1794 transitions. Word has length 214 [2022-02-01 00:00:26,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:26,793 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 1794 transitions. [2022-02-01 00:00:26,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:26,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1794 transitions. [2022-02-01 00:00:26,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-02-01 00:00:26,795 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:26,795 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-01 00:00:26,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-01 00:00:26,796 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:26,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:26,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1709877429, now seen corresponding path program 1 times [2022-02-01 00:00:26,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:26,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017063623] [2022-02-01 00:00:26,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:26,855 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:26,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:26,869 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:26,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:26,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:26,985 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:26,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017063623] [2022-02-01 00:00:26,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2017063623] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:26,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:26,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:00:26,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407812013] [2022-02-01 00:00:26,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:26,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:00:26,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:26,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:00:26,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:00:26,987 INFO L87 Difference]: Start difference. First operand 1298 states and 1794 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:29,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:29,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:29,617 INFO L93 Difference]: Finished difference Result 2993 states and 4147 transitions. [2022-02-01 00:00:29,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-01 00:00:29,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 217 [2022-02-01 00:00:29,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:29,620 INFO L225 Difference]: With dead ends: 2993 [2022-02-01 00:00:29,620 INFO L226 Difference]: Without dead ends: 1723 [2022-02-01 00:00:29,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:00:29,623 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 133 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:29,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 571 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:00:29,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2022-02-01 00:00:29,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2022-02-01 00:00:29,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1718 states have (on average 1.3830034924330616) internal successors, (2376), 1718 states have internal predecessors, (2376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:29,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2380 transitions. [2022-02-01 00:00:29,736 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2380 transitions. Word has length 217 [2022-02-01 00:00:29,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:29,736 INFO L470 AbstractCegarLoop]: Abstraction has 1723 states and 2380 transitions. [2022-02-01 00:00:29,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:29,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2380 transitions. [2022-02-01 00:00:29,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-02-01 00:00:29,738 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:29,739 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:00:29,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-01 00:00:29,739 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:29,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:29,739 INFO L85 PathProgramCache]: Analyzing trace with hash -715157827, now seen corresponding path program 1 times [2022-02-01 00:00:29,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:29,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154065961] [2022-02-01 00:00:29,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:44,528 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:44,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:44,545 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:44,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:44,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:44,715 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:44,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154065961] [2022-02-01 00:00:44,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1154065961] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:44,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:44,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:00:44,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433637515] [2022-02-01 00:00:44,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:44,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:00:44,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:44,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:00:44,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:00:44,717 INFO L87 Difference]: Start difference. First operand 1723 states and 2380 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:46,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:47,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:47,533 INFO L93 Difference]: Finished difference Result 3721 states and 5144 transitions. [2022-02-01 00:00:47,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:47,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 261 [2022-02-01 00:00:47,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:47,538 INFO L225 Difference]: With dead ends: 3721 [2022-02-01 00:00:47,538 INFO L226 Difference]: Without dead ends: 2018 [2022-02-01 00:00:47,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:47,542 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 50 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:47,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 601 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 549 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-01 00:00:47,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2022-02-01 00:00:47,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 1891. [2022-02-01 00:00:47,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1886 states have (on average 1.3870625662778366) internal successors, (2616), 1886 states have internal predecessors, (2616), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:47,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2620 transitions. [2022-02-01 00:00:47,730 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2620 transitions. Word has length 261 [2022-02-01 00:00:47,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:47,730 INFO L470 AbstractCegarLoop]: Abstraction has 1891 states and 2620 transitions. [2022-02-01 00:00:47,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:47,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2620 transitions. [2022-02-01 00:00:47,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-01 00:00:47,733 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:47,734 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:00:47,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-01 00:00:47,734 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:47,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:47,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1673601714, now seen corresponding path program 1 times [2022-02-01 00:00:47,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:47,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116468909] [2022-02-01 00:00:47,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:05,058 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:05,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:05,069 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:05,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:05,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:05,247 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:05,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116468909] [2022-02-01 00:01:05,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [116468909] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:05,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:05,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:01:05,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824653097] [2022-02-01 00:01:05,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:05,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:01:05,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:05,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:01:05,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:01:05,249 INFO L87 Difference]: Start difference. First operand 1891 states and 2620 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:07,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:07,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:07,749 INFO L93 Difference]: Finished difference Result 3791 states and 5254 transitions. [2022-02-01 00:01:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:01:07,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 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 283 [2022-02-01 00:01:07,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:07,753 INFO L225 Difference]: With dead ends: 3791 [2022-02-01 00:01:07,753 INFO L226 Difference]: Without dead ends: 1928 [2022-02-01 00:01:07,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:01:07,756 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 21 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:07,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 547 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 406 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-01 00:01:07,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2022-02-01 00:01:07,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1891. [2022-02-01 00:01:07,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1886 states have (on average 1.3849416755037116) internal successors, (2612), 1886 states have internal predecessors, (2612), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:07,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2616 transitions. [2022-02-01 00:01:07,911 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2616 transitions. Word has length 283 [2022-02-01 00:01:07,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:07,911 INFO L470 AbstractCegarLoop]: Abstraction has 1891 states and 2616 transitions. [2022-02-01 00:01:07,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:07,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2616 transitions. [2022-02-01 00:01:07,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-02-01 00:01:07,914 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:07,914 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:01:07,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-01 00:01:07,914 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:07,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:07,914 INFO L85 PathProgramCache]: Analyzing trace with hash 878025284, now seen corresponding path program 1 times [2022-02-01 00:01:07,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:07,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [110176778] [2022-02-01 00:01:07,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:26,545 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:26,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:26,557 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:26,657 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:26,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [110176778] [2022-02-01 00:01:26,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [110176778] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:26,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:26,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:01:26,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864317848] [2022-02-01 00:01:26,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:26,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:01:26,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:26,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:01:26,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:01:26,658 INFO L87 Difference]: Start difference. First operand 1891 states and 2616 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:28,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:29,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:29,400 INFO L93 Difference]: Finished difference Result 3823 states and 5294 transitions. [2022-02-01 00:01:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:01:29,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 286 [2022-02-01 00:01:29,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:29,418 INFO L225 Difference]: With dead ends: 3823 [2022-02-01 00:01:29,419 INFO L226 Difference]: Without dead ends: 1960 [2022-02-01 00:01:29,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:01:29,423 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 31 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:29,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 561 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:01:29,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2022-02-01 00:01:29,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1891. [2022-02-01 00:01:29,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1886 states have (on average 1.3828207847295864) internal successors, (2608), 1886 states have internal predecessors, (2608), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:29,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2612 transitions. [2022-02-01 00:01:29,804 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2612 transitions. Word has length 286 [2022-02-01 00:01:29,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:29,804 INFO L470 AbstractCegarLoop]: Abstraction has 1891 states and 2612 transitions. [2022-02-01 00:01:29,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:29,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2612 transitions. [2022-02-01 00:01:29,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-02-01 00:01:29,808 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:29,808 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-02-01 00:01:29,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-01 00:01:29,808 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:29,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:29,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1451321997, now seen corresponding path program 1 times [2022-02-01 00:01:29,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:29,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730012582] [2022-02-01 00:01:29,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:49,547 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:49,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:49,559 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:49,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:49,668 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:49,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1730012582] [2022-02-01 00:01:49,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1730012582] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:49,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:49,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:01:49,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856181449] [2022-02-01 00:01:49,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:49,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:01:49,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:49,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:01:49,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:01:49,669 INFO L87 Difference]: Start difference. First operand 1891 states and 2612 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:51,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:53,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:55,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:57,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:58,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:58,045 INFO L93 Difference]: Finished difference Result 3865 states and 5336 transitions. [2022-02-01 00:01:58,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:01:58,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 290 [2022-02-01 00:01:58,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:58,061 INFO L225 Difference]: With dead ends: 3865 [2022-02-01 00:01:58,061 INFO L226 Difference]: Without dead ends: 2002 [2022-02-01 00:01:58,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:01:58,065 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 56 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:58,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 594 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 532 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-02-01 00:01:58,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2022-02-01 00:01:58,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1891. [2022-02-01 00:01:58,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1886 states have (on average 1.3806998939554613) internal successors, (2604), 1886 states have internal predecessors, (2604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:58,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2608 transitions. [2022-02-01 00:01:58,370 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2608 transitions. Word has length 290 [2022-02-01 00:01:58,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:58,370 INFO L470 AbstractCegarLoop]: Abstraction has 1891 states and 2608 transitions. [2022-02-01 00:01:58,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:58,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2608 transitions. [2022-02-01 00:01:58,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-02-01 00:01:58,373 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:58,373 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-02-01 00:01:58,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-01 00:01:58,374 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:58,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:58,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1001169585, now seen corresponding path program 1 times [2022-02-01 00:01:58,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:58,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [651949109] [2022-02-01 00:01:58,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:02:18,271 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:02:18,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:02:18,283 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:02:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:18,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:02:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:18,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:02:18,412 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:02:18,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [651949109] [2022-02-01 00:02:18,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [651949109] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:02:18,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:02:18,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-01 00:02:18,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943608149] [2022-02-01 00:02:18,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:02:18,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-01 00:02:18,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:02:18,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-01 00:02:18,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-01 00:02:18,414 INFO L87 Difference]: Start difference. First operand 1891 states and 2608 transitions. Second operand has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:20,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:21,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:02:21,152 INFO L93 Difference]: Finished difference Result 4031 states and 5567 transitions. [2022-02-01 00:02:21,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-01 00:02:21,152 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 290 [2022-02-01 00:02:21,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:02:21,155 INFO L225 Difference]: With dead ends: 4031 [2022-02-01 00:02:21,155 INFO L226 Difference]: Without dead ends: 2168 [2022-02-01 00:02:21,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-01 00:02:21,157 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 96 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:02:21,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 559 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 624 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:02:21,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2022-02-01 00:02:21,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 2019. [2022-02-01 00:02:21,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2019 states, 2014 states have (on average 1.374379344587885) internal successors, (2768), 2014 states have internal predecessors, (2768), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:21,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 2772 transitions. [2022-02-01 00:02:21,333 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 2772 transitions. Word has length 290 [2022-02-01 00:02:21,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:02:21,334 INFO L470 AbstractCegarLoop]: Abstraction has 2019 states and 2772 transitions. [2022-02-01 00:02:21,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:21,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 2772 transitions. [2022-02-01 00:02:21,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-02-01 00:02:21,337 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:02:21,337 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:02:21,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-01 00:02:21,337 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:02:21,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:02:21,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1108199611, now seen corresponding path program 1 times [2022-02-01 00:02:21,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:02:21,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923283477] [2022-02-01 00:02:21,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:02:32,750 WARN L228 SmtUtils]: Spent 7.65s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:02:44,369 WARN L228 SmtUtils]: Spent 6.22s on a formula simplification. DAG size of input: 268 DAG size of output: 214 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:02:55,727 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:02:55,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:02:55,745 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:02:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:55,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:02:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:55,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:02:55,916 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:02:55,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1923283477] [2022-02-01 00:02:55,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1923283477] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:02:55,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:02:55,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:02:55,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032712971] [2022-02-01 00:02:55,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:02:55,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:02:55,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:02:55,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:02:55,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:02:55,917 INFO L87 Difference]: Start difference. First operand 2019 states and 2772 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:57,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:58,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:02:58,691 INFO L93 Difference]: Finished difference Result 4089 states and 5604 transitions. [2022-02-01 00:02:58,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:02:58,691 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 291 [2022-02-01 00:02:58,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:02:58,694 INFO L225 Difference]: With dead ends: 4089 [2022-02-01 00:02:58,694 INFO L226 Difference]: Without dead ends: 2098 [2022-02-01 00:02:58,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:02:58,698 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 50 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:02:58,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 584 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:02:58,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2022-02-01 00:02:58,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 2019. [2022-02-01 00:02:58,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2019 states, 2014 states have (on average 1.3723932472691163) internal successors, (2764), 2014 states have internal predecessors, (2764), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:58,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 2768 transitions. [2022-02-01 00:02:58,900 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 2768 transitions. Word has length 291 [2022-02-01 00:02:58,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:02:58,900 INFO L470 AbstractCegarLoop]: Abstraction has 2019 states and 2768 transitions. [2022-02-01 00:02:58,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:58,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 2768 transitions. [2022-02-01 00:02:58,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-02-01 00:02:58,904 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:02:58,904 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:02:58,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-01 00:02:58,904 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:02:58,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:02:58,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1904595399, now seen corresponding path program 1 times [2022-02-01 00:02:58,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:02:58,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253854767] [2022-02-01 00:02:58,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:03:09,372 WARN L228 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:03:20,282 WARN L228 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 268 DAG size of output: 214 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:03:29,986 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:03:29,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:03:29,999 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:03:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:03:30,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:03:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:03:30,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:03:30,159 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:03:30,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253854767] [2022-02-01 00:03:30,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [253854767] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:03:30,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:03:30,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-01 00:03:30,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386518454] [2022-02-01 00:03:30,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:03:30,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-01 00:03:30,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:03:30,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-01 00:03:30,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-01 00:03:30,161 INFO L87 Difference]: Start difference. First operand 2019 states and 2768 transitions. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 6 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:32,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:03:32,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:03:32,925 INFO L93 Difference]: Finished difference Result 4469 states and 6112 transitions. [2022-02-01 00:03:32,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-01 00:03:32,927 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 6 states have internal predecessors, (176), 1 states have call successors, (3), 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 291 [2022-02-01 00:03:32,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:03:32,930 INFO L225 Difference]: With dead ends: 4469 [2022-02-01 00:03:32,930 INFO L226 Difference]: Without dead ends: 2478 [2022-02-01 00:03:32,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-01 00:03:32,934 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 148 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:03:32,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 509 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 616 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:03:32,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2022-02-01 00:03:33,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2131. [2022-02-01 00:03:33,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2131 states, 2126 states have (on average 1.3621825023518344) internal successors, (2896), 2126 states have internal predecessors, (2896), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:33,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2131 states to 2131 states and 2900 transitions. [2022-02-01 00:03:33,100 INFO L78 Accepts]: Start accepts. Automaton has 2131 states and 2900 transitions. Word has length 291 [2022-02-01 00:03:33,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:03:33,100 INFO L470 AbstractCegarLoop]: Abstraction has 2131 states and 2900 transitions. [2022-02-01 00:03:33,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 6 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:33,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2131 states and 2900 transitions. [2022-02-01 00:03:33,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-02-01 00:03:33,103 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:03:33,103 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:03:33,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-01 00:03:33,103 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:03:33,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:03:33,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1521987567, now seen corresponding path program 1 times [2022-02-01 00:03:33,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:03:33,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1111609104] [2022-02-01 00:03:33,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:03:48,483 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:03:48,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:03:48,527 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:03:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:03:48,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:03:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:03:48,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:03:48,713 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:03:48,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1111609104] [2022-02-01 00:03:48,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1111609104] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:03:48,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:03:48,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:03:48,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110694355] [2022-02-01 00:03:48,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:03:48,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:03:48,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:03:48,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:03:48,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:03:48,716 INFO L87 Difference]: Start difference. First operand 2131 states and 2900 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:50,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:03:51,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:03:51,242 INFO L93 Difference]: Finished difference Result 4247 states and 5782 transitions. [2022-02-01 00:03:51,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:03:51,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 293 [2022-02-01 00:03:51,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:03:51,246 INFO L225 Difference]: With dead ends: 4247 [2022-02-01 00:03:51,246 INFO L226 Difference]: Without dead ends: 2144 [2022-02-01 00:03:51,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:03:51,250 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 14 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:03:51,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 543 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 374 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-01 00:03:51,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2022-02-01 00:03:51,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 2131. [2022-02-01 00:03:51,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2131 states, 2126 states have (on average 1.3603010348071496) internal successors, (2892), 2126 states have internal predecessors, (2892), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:51,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2131 states to 2131 states and 2896 transitions. [2022-02-01 00:03:51,468 INFO L78 Accepts]: Start accepts. Automaton has 2131 states and 2896 transitions. Word has length 293 [2022-02-01 00:03:51,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:03:51,468 INFO L470 AbstractCegarLoop]: Abstraction has 2131 states and 2896 transitions. [2022-02-01 00:03:51,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:51,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2131 states and 2896 transitions. [2022-02-01 00:03:51,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-02-01 00:03:51,471 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:03:51,471 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:03:51,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-01 00:03:51,472 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:03:51,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:03:51,472 INFO L85 PathProgramCache]: Analyzing trace with hash 2143354589, now seen corresponding path program 1 times [2022-02-01 00:03:51,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:03:51,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1413977314] [2022-02-01 00:03:51,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:04:07,112 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:04:07,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:04:07,125 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:04:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:07,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:04:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:07,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:04:07,230 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:04:07,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1413977314] [2022-02-01 00:04:07,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1413977314] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:04:07,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:04:07,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:04:07,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961465882] [2022-02-01 00:04:07,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:04:07,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:04:07,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:04:07,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:04:07,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:04:07,232 INFO L87 Difference]: Start difference. First operand 2131 states and 2896 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:09,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:04:09,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:04:09,834 INFO L93 Difference]: Finished difference Result 4443 states and 6030 transitions. [2022-02-01 00:04:09,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:04:09,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 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 293 [2022-02-01 00:04:09,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:04:09,839 INFO L225 Difference]: With dead ends: 4443 [2022-02-01 00:04:09,839 INFO L226 Difference]: Without dead ends: 2340 [2022-02-01 00:04:09,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:04:09,843 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 28 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:04:09,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 570 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:04:09,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states. [2022-02-01 00:04:10,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 2279. [2022-02-01 00:04:10,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2274 states have (on average 1.3579595426561126) internal successors, (3088), 2274 states have internal predecessors, (3088), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:10,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 3092 transitions. [2022-02-01 00:04:10,051 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 3092 transitions. Word has length 293 [2022-02-01 00:04:10,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:04:10,052 INFO L470 AbstractCegarLoop]: Abstraction has 2279 states and 3092 transitions. [2022-02-01 00:04:10,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:10,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 3092 transitions. [2022-02-01 00:04:10,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-02-01 00:04:10,055 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:04:10,055 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:04:10,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-01 00:04:10,055 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:04:10,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:04:10,055 INFO L85 PathProgramCache]: Analyzing trace with hash -594348689, now seen corresponding path program 1 times [2022-02-01 00:04:10,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:04:10,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869447610] [2022-02-01 00:04:10,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:04:28,277 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:04:28,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:04:28,293 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:04:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:28,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:04:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:28,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:04:28,432 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:04:28,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869447610] [2022-02-01 00:04:28,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1869447610] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:04:28,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:04:28,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:04:28,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587847716] [2022-02-01 00:04:28,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:04:28,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:04:28,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:04:28,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:04:28,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:04:28,434 INFO L87 Difference]: Start difference. First operand 2279 states and 3092 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:30,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:04:31,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:04:31,223 INFO L93 Difference]: Finished difference Result 4723 states and 6398 transitions. [2022-02-01 00:04:31,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:04:31,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 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 294 [2022-02-01 00:04:31,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:04:31,228 INFO L225 Difference]: With dead ends: 4723 [2022-02-01 00:04:31,228 INFO L226 Difference]: Without dead ends: 2472 [2022-02-01 00:04:31,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:04:31,233 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 25 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:04:31,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 564 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:04:31,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2022-02-01 00:04:31,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 2419. [2022-02-01 00:04:31,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2419 states, 2414 states have (on average 1.3537696768848384) internal successors, (3268), 2414 states have internal predecessors, (3268), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:31,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 3272 transitions. [2022-02-01 00:04:31,544 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 3272 transitions. Word has length 294 [2022-02-01 00:04:31,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:04:31,544 INFO L470 AbstractCegarLoop]: Abstraction has 2419 states and 3272 transitions. [2022-02-01 00:04:31,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:31,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 3272 transitions. [2022-02-01 00:04:31,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-02-01 00:04:31,548 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:04:31,548 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:04:31,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-01 00:04:31,549 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:04:31,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:04:31,549 INFO L85 PathProgramCache]: Analyzing trace with hash -601932840, now seen corresponding path program 1 times [2022-02-01 00:04:31,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:04:31,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593042504] [2022-02-01 00:04:31,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:04:51,692 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:04:51,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:04:51,711 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:04:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:51,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:04:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:51,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:04:51,922 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:04:51,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593042504] [2022-02-01 00:04:51,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [593042504] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:04:51,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:04:51,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:04:51,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983570397] [2022-02-01 00:04:51,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:04:51,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:04:51,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:04:51,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:04:51,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:04:51,923 INFO L87 Difference]: Start difference. First operand 2419 states and 3272 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:53,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:04:54,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:04:54,622 INFO L93 Difference]: Finished difference Result 5041 states and 6816 transitions. [2022-02-01 00:04:54,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:04:54,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 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 295 [2022-02-01 00:04:54,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:04:54,627 INFO L225 Difference]: With dead ends: 5041 [2022-02-01 00:04:54,627 INFO L226 Difference]: Without dead ends: 2650 [2022-02-01 00:04:54,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:04:54,630 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 34 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:04:54,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 580 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:04:54,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2022-02-01 00:04:54,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2575. [2022-02-01 00:04:54,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2575 states, 2570 states have (on average 1.3540856031128405) internal successors, (3480), 2570 states have internal predecessors, (3480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:54,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2575 states to 2575 states and 3484 transitions. [2022-02-01 00:04:54,929 INFO L78 Accepts]: Start accepts. Automaton has 2575 states and 3484 transitions. Word has length 295 [2022-02-01 00:04:54,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:04:54,929 INFO L470 AbstractCegarLoop]: Abstraction has 2575 states and 3484 transitions. [2022-02-01 00:04:54,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:54,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2575 states and 3484 transitions. [2022-02-01 00:04:54,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-02-01 00:04:54,934 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:04:54,934 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-02-01 00:04:54,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-01 00:04:54,934 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:04:54,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:04:54,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1070328754, now seen corresponding path program 1 times [2022-02-01 00:04:54,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:04:54,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1866489354] [2022-02-01 00:04:54,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:05:15,385 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:05:15,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:05:15,399 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:15,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:15,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:05:15,524 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:15,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1866489354] [2022-02-01 00:05:15,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1866489354] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:15,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:15,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-01 00:05:15,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003517930] [2022-02-01 00:05:15,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:15,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-01 00:05:15,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:15,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-01 00:05:15,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-01 00:05:15,525 INFO L87 Difference]: Start difference. First operand 2575 states and 3484 transitions. Second operand has 7 states, 7 states have (on average 28.571428571428573) internal successors, (200), 6 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:17,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:18,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:05:18,524 INFO L93 Difference]: Finished difference Result 5685 states and 7667 transitions. [2022-02-01 00:05:18,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-01 00:05:18,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 28.571428571428573) internal successors, (200), 6 states have internal predecessors, (200), 1 states have call successors, (3), 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 301 [2022-02-01 00:05:18,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:05:18,529 INFO L225 Difference]: With dead ends: 5685 [2022-02-01 00:05:18,529 INFO L226 Difference]: Without dead ends: 3138 [2022-02-01 00:05:18,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-02-01 00:05:18,534 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 258 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 125 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-01 00:05:18,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 611 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 769 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-01 00:05:18,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3138 states. [2022-02-01 00:05:18,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3138 to 2578. [2022-02-01 00:05:18,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 2573 states have (on average 1.350563544500583) internal successors, (3475), 2573 states have internal predecessors, (3475), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:18,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3479 transitions. [2022-02-01 00:05:18,781 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3479 transitions. Word has length 301 [2022-02-01 00:05:18,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:05:18,781 INFO L470 AbstractCegarLoop]: Abstraction has 2578 states and 3479 transitions. [2022-02-01 00:05:18,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.571428571428573) internal successors, (200), 6 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:18,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3479 transitions. [2022-02-01 00:05:18,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-02-01 00:05:18,784 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:05:18,784 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-02-01 00:05:18,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-01 00:05:18,784 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:05:18,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:05:18,784 INFO L85 PathProgramCache]: Analyzing trace with hash 122276788, now seen corresponding path program 1 times [2022-02-01 00:05:18,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:05:18,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1908917518] [2022-02-01 00:05:18,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:05:38,950 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:05:38,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:05:38,964 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:39,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:39,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:05:39,265 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:39,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1908917518] [2022-02-01 00:05:39,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1908917518] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:39,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:39,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-01 00:05:39,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92002096] [2022-02-01 00:05:39,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:39,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-01 00:05:39,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:39,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-01 00:05:39,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-01 00:05:39,266 INFO L87 Difference]: Start difference. First operand 2578 states and 3479 transitions. Second operand has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:41,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:43,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:05:43,239 INFO L93 Difference]: Finished difference Result 6633 states and 8905 transitions. [2022-02-01 00:05:43,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-01 00:05:43,239 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 301 [2022-02-01 00:05:43,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:05:43,244 INFO L225 Difference]: With dead ends: 6633 [2022-02-01 00:05:43,244 INFO L226 Difference]: Without dead ends: 4083 [2022-02-01 00:05:43,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-02-01 00:05:43,248 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 191 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 36 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:05:43,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 1282 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1625 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-02-01 00:05:43,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2022-02-01 00:05:43,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 2677. [2022-02-01 00:05:43,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.348802395209581) internal successors, (3604), 2672 states have internal predecessors, (3604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:43,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3608 transitions. [2022-02-01 00:05:43,590 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3608 transitions. Word has length 301 [2022-02-01 00:05:43,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:05:43,590 INFO L470 AbstractCegarLoop]: Abstraction has 2677 states and 3608 transitions. [2022-02-01 00:05:43,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:43,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3608 transitions. [2022-02-01 00:05:43,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-02-01 00:05:43,594 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:05:43,594 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-02-01 00:05:43,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-01 00:05:43,594 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:05:43,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:05:43,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1015763126, now seen corresponding path program 1 times [2022-02-01 00:05:43,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:05:43,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [35236174] [2022-02-01 00:05:43,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:04,216 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:04,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:04,229 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:04,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:04,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:06:04,530 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:04,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [35236174] [2022-02-01 00:06:04,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [35236174] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:04,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:04,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-01 00:06:04,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111745109] [2022-02-01 00:06:04,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:04,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-01 00:06:04,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:04,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-01 00:06:04,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-01 00:06:04,531 INFO L87 Difference]: Start difference. First operand 2677 states and 3608 transitions. Second operand has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:06,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:08,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:08,449 INFO L93 Difference]: Finished difference Result 6808 states and 9138 transitions. [2022-02-01 00:06:08,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-01 00:06:08,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 301 [2022-02-01 00:06:08,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:08,455 INFO L225 Difference]: With dead ends: 6808 [2022-02-01 00:06:08,455 INFO L226 Difference]: Without dead ends: 4153 [2022-02-01 00:06:08,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-02-01 00:06:08,463 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 238 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:08,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 1150 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1500 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-02-01 00:06:08,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4153 states. [2022-02-01 00:06:08,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4153 to 2677. [2022-02-01 00:06:08,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.348802395209581) internal successors, (3604), 2672 states have internal predecessors, (3604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:08,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3608 transitions. [2022-02-01 00:06:08,864 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3608 transitions. Word has length 301 [2022-02-01 00:06:08,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:08,865 INFO L470 AbstractCegarLoop]: Abstraction has 2677 states and 3608 transitions. [2022-02-01 00:06:08,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:08,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3608 transitions. [2022-02-01 00:06:08,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-02-01 00:06:08,869 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:08,869 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-02-01 00:06:08,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-01 00:06:08,869 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:08,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:08,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1703999688, now seen corresponding path program 1 times [2022-02-01 00:06:08,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:08,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549358398] [2022-02-01 00:06:08,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:29,380 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:29,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:29,397 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:29,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:29,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:06:29,676 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:29,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549358398] [2022-02-01 00:06:29,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [549358398] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:29,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:29,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-01 00:06:29,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494716151] [2022-02-01 00:06:29,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:29,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-01 00:06:29,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:29,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-01 00:06:29,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-01 00:06:29,677 INFO L87 Difference]: Start difference. First operand 2677 states and 3608 transitions. Second operand has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:31,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:33,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:33,490 INFO L93 Difference]: Finished difference Result 7482 states and 10138 transitions. [2022-02-01 00:06:33,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-01 00:06:33,490 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 330 [2022-02-01 00:06:33,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:33,496 INFO L225 Difference]: With dead ends: 7482 [2022-02-01 00:06:33,496 INFO L226 Difference]: Without dead ends: 4833 [2022-02-01 00:06:33,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-02-01 00:06:33,501 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 415 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 104 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:33,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 1011 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1004 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-02-01 00:06:33,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4833 states. [2022-02-01 00:06:34,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4833 to 4682. [2022-02-01 00:06:34,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4682 states, 4677 states have (on average 1.3626256147102844) internal successors, (6373), 4677 states have internal predecessors, (6373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:34,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4682 states to 4682 states and 6377 transitions. [2022-02-01 00:06:34,240 INFO L78 Accepts]: Start accepts. Automaton has 4682 states and 6377 transitions. Word has length 330 [2022-02-01 00:06:34,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:34,240 INFO L470 AbstractCegarLoop]: Abstraction has 4682 states and 6377 transitions. [2022-02-01 00:06:34,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:34,240 INFO L276 IsEmpty]: Start isEmpty. Operand 4682 states and 6377 transitions. [2022-02-01 00:06:34,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-02-01 00:06:34,247 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:34,247 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-02-01 00:06:34,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-01 00:06:34,248 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:34,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:34,248 INFO L85 PathProgramCache]: Analyzing trace with hash 866125370, now seen corresponding path program 1 times [2022-02-01 00:06:34,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:34,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2006130993] [2022-02-01 00:06:34,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:54,697 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:54,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:54,740 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:55,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:55,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:06:55,018 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:55,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2006130993] [2022-02-01 00:06:55,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2006130993] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:55,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:55,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-01 00:06:55,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158076269] [2022-02-01 00:06:55,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:55,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-01 00:06:55,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:55,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-01 00:06:55,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-01 00:06:55,019 INFO L87 Difference]: Start difference. First operand 4682 states and 6377 transitions. Second operand has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:57,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:59,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:59,312 INFO L93 Difference]: Finished difference Result 10993 states and 14881 transitions. [2022-02-01 00:06:59,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-01 00:06:59,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 330 [2022-02-01 00:06:59,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:59,320 INFO L225 Difference]: With dead ends: 10993 [2022-02-01 00:06:59,320 INFO L226 Difference]: Without dead ends: 6335 [2022-02-01 00:06:59,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-02-01 00:06:59,326 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 270 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:59,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 1048 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1265 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-02-01 00:06:59,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6335 states. [2022-02-01 00:07:00,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6335 to 4798. [2022-02-01 00:07:00,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4798 states, 4793 states have (on average 1.3617775923221365) internal successors, (6527), 4793 states have internal predecessors, (6527), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:00,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4798 states to 4798 states and 6531 transitions. [2022-02-01 00:07:00,086 INFO L78 Accepts]: Start accepts. Automaton has 4798 states and 6531 transitions. Word has length 330 [2022-02-01 00:07:00,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:07:00,086 INFO L470 AbstractCegarLoop]: Abstraction has 4798 states and 6531 transitions. [2022-02-01 00:07:00,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:00,086 INFO L276 IsEmpty]: Start isEmpty. Operand 4798 states and 6531 transitions. [2022-02-01 00:07:00,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-02-01 00:07:00,093 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:07:00,094 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 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] [2022-02-01 00:07:00,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-01 00:07:00,094 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:07:00,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:07:00,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1650885240, now seen corresponding path program 1 times [2022-02-01 00:07:00,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:07:00,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000878729] [2022-02-01 00:07:00,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:07:21,432 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:07:21,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:07:21,449 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:07:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:21,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:07:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:21,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:07:21,571 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:07:21,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000878729] [2022-02-01 00:07:21,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2000878729] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:07:21,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:07:21,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:07:21,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764474069] [2022-02-01 00:07:21,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:07:21,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:07:21,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:07:21,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:07:21,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:07:21,573 INFO L87 Difference]: Start difference. First operand 4798 states and 6531 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:23,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:24,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:07:24,828 INFO L93 Difference]: Finished difference Result 9720 states and 13215 transitions. [2022-02-01 00:07:24,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:07:24,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 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 331 [2022-02-01 00:07:24,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:07:24,835 INFO L225 Difference]: With dead ends: 9720 [2022-02-01 00:07:24,835 INFO L226 Difference]: Without dead ends: 4934 [2022-02-01 00:07:24,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:07:24,841 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 30 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:07:24,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 571 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:07:24,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4934 states. [2022-02-01 00:07:25,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4934 to 4788. [2022-02-01 00:07:25,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4788 states, 4783 states have (on average 1.3606523102655237) internal successors, (6508), 4783 states have internal predecessors, (6508), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:25,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4788 states to 4788 states and 6512 transitions. [2022-02-01 00:07:25,685 INFO L78 Accepts]: Start accepts. Automaton has 4788 states and 6512 transitions. Word has length 331 [2022-02-01 00:07:25,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:07:25,685 INFO L470 AbstractCegarLoop]: Abstraction has 4788 states and 6512 transitions. [2022-02-01 00:07:25,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:25,685 INFO L276 IsEmpty]: Start isEmpty. Operand 4788 states and 6512 transitions. [2022-02-01 00:07:25,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-02-01 00:07:25,690 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:07:25,691 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:07:25,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-01 00:07:25,691 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:07:25,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:07:25,691 INFO L85 PathProgramCache]: Analyzing trace with hash -296702352, now seen corresponding path program 1 times [2022-02-01 00:07:25,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:07:25,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905057373] [2022-02-01 00:07:25,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:07:47,389 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:07:47,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:07:47,409 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:07:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:47,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:07:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:47,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:07:47,552 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:07:47,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905057373] [2022-02-01 00:07:47,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1905057373] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:07:47,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:07:47,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:07:47,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398358968] [2022-02-01 00:07:47,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:07:47,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:07:47,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:07:47,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:07:47,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:07:47,554 INFO L87 Difference]: Start difference. First operand 4788 states and 6512 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:49,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:51,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:07:51,111 INFO L93 Difference]: Finished difference Result 9650 states and 13144 transitions. [2022-02-01 00:07:51,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:07:51,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 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 340 [2022-02-01 00:07:51,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:07:51,120 INFO L225 Difference]: With dead ends: 9650 [2022-02-01 00:07:51,120 INFO L226 Difference]: Without dead ends: 4890 [2022-02-01 00:07:51,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:07:51,126 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 29 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:07:51,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 535 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 425 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:07:51,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4890 states. [2022-02-01 00:07:52,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4890 to 4768. [2022-02-01 00:07:52,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4768 states, 4763 states have (on average 1.360487087969767) internal successors, (6480), 4763 states have internal predecessors, (6480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4768 states to 4768 states and 6484 transitions. [2022-02-01 00:07:52,112 INFO L78 Accepts]: Start accepts. Automaton has 4768 states and 6484 transitions. Word has length 340 [2022-02-01 00:07:52,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:07:52,113 INFO L470 AbstractCegarLoop]: Abstraction has 4768 states and 6484 transitions. [2022-02-01 00:07:52,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:52,113 INFO L276 IsEmpty]: Start isEmpty. Operand 4768 states and 6484 transitions. [2022-02-01 00:07:52,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-02-01 00:07:52,119 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:07:52,120 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:07:52,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-01 00:07:52,120 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:07:52,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:07:52,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1627505750, now seen corresponding path program 2 times [2022-02-01 00:07:52,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:07:52,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431083044] [2022-02-01 00:07:52,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:19,122 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:19,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:19,145 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:19,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:19,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:08:19,583 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:19,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431083044] [2022-02-01 00:08:19,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [431083044] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:19,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:19,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-01 00:08:19,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375801654] [2022-02-01 00:08:19,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:19,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-01 00:08:19,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:19,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-01 00:08:19,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-01 00:08:19,584 INFO L87 Difference]: Start difference. First operand 4768 states and 6484 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:21,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:08:23,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:23,009 INFO L93 Difference]: Finished difference Result 9529 states and 12960 transitions. [2022-02-01 00:08:23,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-01 00:08:23,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 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 360 [2022-02-01 00:08:23,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:23,031 INFO L225 Difference]: With dead ends: 9529 [2022-02-01 00:08:23,031 INFO L226 Difference]: Without dead ends: 4768 [2022-02-01 00:08:23,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-01 00:08:23,039 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 7 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:23,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 807 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:08:23,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4768 states. [2022-02-01 00:08:23,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4768 to 4768. [2022-02-01 00:08:23,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4768 states, 4763 states have (on average 1.3602771362586605) internal successors, (6479), 4763 states have internal predecessors, (6479), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:23,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4768 states to 4768 states and 6483 transitions. [2022-02-01 00:08:23,871 INFO L78 Accepts]: Start accepts. Automaton has 4768 states and 6483 transitions. Word has length 360 [2022-02-01 00:08:23,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:23,871 INFO L470 AbstractCegarLoop]: Abstraction has 4768 states and 6483 transitions. [2022-02-01 00:08:23,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:23,871 INFO L276 IsEmpty]: Start isEmpty. Operand 4768 states and 6483 transitions. [2022-02-01 00:08:23,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-02-01 00:08:23,877 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:23,877 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:08:23,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-01 00:08:23,878 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:23,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:23,878 INFO L85 PathProgramCache]: Analyzing trace with hash 987536532, now seen corresponding path program 1 times [2022-02-01 00:08:23,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:23,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597653213] [2022-02-01 00:08:23,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:45,314 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:45,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:45,331 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:46,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:46,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:08:46,100 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:46,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597653213] [2022-02-01 00:08:46,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [597653213] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:46,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:46,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-01 00:08:46,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390621569] [2022-02-01 00:08:46,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:46,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-01 00:08:46,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:46,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-01 00:08:46,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-02-01 00:08:46,101 INFO L87 Difference]: Start difference. First operand 4768 states and 6483 transitions. Second operand has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 10 states have internal predecessors, (182), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:48,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:08:50,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:50,662 INFO L93 Difference]: Finished difference Result 12627 states and 17174 transitions. [2022-02-01 00:08:50,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-01 00:08:50,663 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 10 states have internal predecessors, (182), 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 360 [2022-02-01 00:08:50,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:50,672 INFO L225 Difference]: With dead ends: 12627 [2022-02-01 00:08:50,672 INFO L226 Difference]: Without dead ends: 7887 [2022-02-01 00:08:50,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-02-01 00:08:50,678 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 285 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 78 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:50,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 1210 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1287 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-02-01 00:08:50,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7887 states. [2022-02-01 00:08:51,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7887 to 5686. [2022-02-01 00:08:51,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5686 states, 5681 states have (on average 1.3562753036437247) internal successors, (7705), 5681 states have internal predecessors, (7705), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:51,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5686 states to 5686 states and 7709 transitions. [2022-02-01 00:08:51,625 INFO L78 Accepts]: Start accepts. Automaton has 5686 states and 7709 transitions. Word has length 360 [2022-02-01 00:08:51,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:51,626 INFO L470 AbstractCegarLoop]: Abstraction has 5686 states and 7709 transitions. [2022-02-01 00:08:51,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 10 states have internal predecessors, (182), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:51,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5686 states and 7709 transitions. [2022-02-01 00:08:51,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-02-01 00:08:51,633 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:51,633 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:08:51,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-01 00:08:51,633 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:51,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:51,633 INFO L85 PathProgramCache]: Analyzing trace with hash 370885656, now seen corresponding path program 1 times [2022-02-01 00:08:51,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:51,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [749651395] [2022-02-01 00:08:51,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:09:02,136 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:09:02,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:09:02,156 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:09:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:02,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:09:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:02,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:09:02,278 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:09:02,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [749651395] [2022-02-01 00:09:02,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [749651395] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:09:02,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:09:02,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:09:02,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216379144] [2022-02-01 00:09:02,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:09:02,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:09:02,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:09:02,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:09:02,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:09:02,279 INFO L87 Difference]: Start difference. First operand 5686 states and 7709 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:04,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:05,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:09:05,699 INFO L93 Difference]: Finished difference Result 11410 states and 15459 transitions. [2022-02-01 00:09:05,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:09:05,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 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 369 [2022-02-01 00:09:05,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:09:05,708 INFO L225 Difference]: With dead ends: 11410 [2022-02-01 00:09:05,708 INFO L226 Difference]: Without dead ends: 5862 [2022-02-01 00:09:05,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:09:05,716 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 47 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:09:05,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 568 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:09:05,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5862 states. [2022-02-01 00:09:06,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5862 to 5686. [2022-02-01 00:09:06,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5686 states, 5681 states have (on average 1.354515050167224) internal successors, (7695), 5681 states have internal predecessors, (7695), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:06,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5686 states to 5686 states and 7699 transitions. [2022-02-01 00:09:06,664 INFO L78 Accepts]: Start accepts. Automaton has 5686 states and 7699 transitions. Word has length 369 [2022-02-01 00:09:06,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:09:06,664 INFO L470 AbstractCegarLoop]: Abstraction has 5686 states and 7699 transitions. [2022-02-01 00:09:06,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:06,664 INFO L276 IsEmpty]: Start isEmpty. Operand 5686 states and 7699 transitions. [2022-02-01 00:09:06,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2022-02-01 00:09:06,670 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:09:06,670 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:09:06,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-01 00:09:06,671 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:09:06,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:09:06,671 INFO L85 PathProgramCache]: Analyzing trace with hash -184700186, now seen corresponding path program 1 times [2022-02-01 00:09:06,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:09:06,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493176184] [2022-02-01 00:09:06,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:09:16,912 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:09:16,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:09:16,928 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:09:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:17,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:09:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:17,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:09:17,051 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:09:17,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493176184] [2022-02-01 00:09:17,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [493176184] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:09:17,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:09:17,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:09:17,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992819922] [2022-02-01 00:09:17,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:09:17,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:09:17,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:09:17,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:09:17,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:09:17,052 INFO L87 Difference]: Start difference. First operand 5686 states and 7699 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:19,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:20,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:09:20,328 INFO L93 Difference]: Finished difference Result 11378 states and 15405 transitions. [2022-02-01 00:09:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:09:20,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 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 370 [2022-02-01 00:09:20,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:09:20,335 INFO L225 Difference]: With dead ends: 11378 [2022-02-01 00:09:20,335 INFO L226 Difference]: Without dead ends: 5830 [2022-02-01 00:09:20,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:09:20,342 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 43 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:09:20,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 562 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 450 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:09:20,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5830 states. [2022-02-01 00:09:21,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5830 to 5686. [2022-02-01 00:09:21,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5686 states, 5681 states have (on average 1.3527547966907234) internal successors, (7685), 5681 states have internal predecessors, (7685), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:21,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5686 states to 5686 states and 7689 transitions. [2022-02-01 00:09:21,250 INFO L78 Accepts]: Start accepts. Automaton has 5686 states and 7689 transitions. Word has length 370 [2022-02-01 00:09:21,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:09:21,250 INFO L470 AbstractCegarLoop]: Abstraction has 5686 states and 7689 transitions. [2022-02-01 00:09:21,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:21,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5686 states and 7689 transitions. [2022-02-01 00:09:21,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2022-02-01 00:09:21,280 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:09:21,280 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:09:21,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-01 00:09:21,280 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:09:21,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:09:21,280 INFO L85 PathProgramCache]: Analyzing trace with hash -256342554, now seen corresponding path program 1 times [2022-02-01 00:09:21,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:09:21,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703410348] [2022-02-01 00:09:21,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:09:42,298 WARN L228 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 268 DAG size of output: 214 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:09:52,988 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:09:52,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:09:53,004 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:09:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:53,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:09:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:53,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:09:53,126 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:09:53,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703410348] [2022-02-01 00:09:53,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1703410348] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:09:53,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:09:53,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:09:53,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561698607] [2022-02-01 00:09:53,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:09:53,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:09:53,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:09:53,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:09:53,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:09:53,127 INFO L87 Difference]: Start difference. First operand 5686 states and 7689 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:55,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:56,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:09:56,441 INFO L93 Difference]: Finished difference Result 11378 states and 15385 transitions. [2022-02-01 00:09:56,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:09:56,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 370 [2022-02-01 00:09:56,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:09:56,449 INFO L225 Difference]: With dead ends: 11378 [2022-02-01 00:09:56,449 INFO L226 Difference]: Without dead ends: 5830 [2022-02-01 00:09:56,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:09:56,457 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 38 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:09:56,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 560 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:09:56,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5830 states. [2022-02-01 00:09:57,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5830 to 5686. [2022-02-01 00:09:57,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5686 states, 5681 states have (on average 1.3509945432142227) internal successors, (7675), 5681 states have internal predecessors, (7675), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:57,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5686 states to 5686 states and 7679 transitions. [2022-02-01 00:09:57,316 INFO L78 Accepts]: Start accepts. Automaton has 5686 states and 7679 transitions. Word has length 370 [2022-02-01 00:09:57,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:09:57,316 INFO L470 AbstractCegarLoop]: Abstraction has 5686 states and 7679 transitions. [2022-02-01 00:09:57,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:57,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5686 states and 7679 transitions. [2022-02-01 00:09:57,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-02-01 00:09:57,322 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:09:57,322 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:09:57,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-01 00:09:57,322 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:09:57,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:09:57,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1392314547, now seen corresponding path program 1 times [2022-02-01 00:09:57,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:09:57,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798168345] [2022-02-01 00:09:57,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:10:08,770 WARN L228 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 270 DAG size of output: 216 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:10:18,775 WARN L228 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 268 DAG size of output: 214 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:10:30,755 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:10:30,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:10:30,779 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:10:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:10:30,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:10:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:10:30,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:10:30,939 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:10:30,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798168345] [2022-02-01 00:10:30,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1798168345] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:10:30,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:10:30,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:10:30,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097902050] [2022-02-01 00:10:30,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:10:30,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:10:30,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:10:30,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:10:30,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:10:30,940 INFO L87 Difference]: Start difference. First operand 5686 states and 7679 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:10:32,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:10:34,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:10:34,811 INFO L93 Difference]: Finished difference Result 11338 states and 15315 transitions. [2022-02-01 00:10:34,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:10:34,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 371 [2022-02-01 00:10:34,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:10:34,822 INFO L225 Difference]: With dead ends: 11338 [2022-02-01 00:10:34,822 INFO L226 Difference]: Without dead ends: 5790 [2022-02-01 00:10:34,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:10:34,832 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 32 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:10:34,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 552 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 438 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:10:34,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5790 states. [2022-02-01 00:10:36,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5790 to 5686. [2022-02-01 00:10:36,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5686 states, 5681 states have (on average 1.3492342897377223) internal successors, (7665), 5681 states have internal predecessors, (7665), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:10:36,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5686 states to 5686 states and 7669 transitions. [2022-02-01 00:10:36,106 INFO L78 Accepts]: Start accepts. Automaton has 5686 states and 7669 transitions. Word has length 371 [2022-02-01 00:10:36,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:10:36,107 INFO L470 AbstractCegarLoop]: Abstraction has 5686 states and 7669 transitions. [2022-02-01 00:10:36,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:10:36,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5686 states and 7669 transitions. [2022-02-01 00:10:36,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2022-02-01 00:10:36,116 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:10:36,116 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:10:36,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-01 00:10:36,116 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:10:36,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:10:36,117 INFO L85 PathProgramCache]: Analyzing trace with hash 685354029, now seen corresponding path program 1 times [2022-02-01 00:10:36,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:10:36,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542779125] [2022-02-01 00:10:36,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:10:51,222 WARN L228 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 194 DAG size of output: 189 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:11:18,087 WARN L228 SmtUtils]: Spent 10.75s on a formula simplification. DAG size of input: 192 DAG size of output: 187 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:11:19,450 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:11:19,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:11:19,475 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:11:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:11:19,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:11:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:11:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:11:19,892 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:11:19,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542779125] [2022-02-01 00:11:19,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [542779125] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:11:19,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:11:19,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-01 00:11:19,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377930498] [2022-02-01 00:11:19,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:11:19,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-01 00:11:19,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:11:19,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-01 00:11:19,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:11:19,894 INFO L87 Difference]: Start difference. First operand 5686 states and 7669 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:11:21,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:11:24,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:11:24,064 INFO L93 Difference]: Finished difference Result 11722 states and 15823 transitions. [2022-02-01 00:11:24,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:11:24,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 1 states have call successors, (3), 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 376 [2022-02-01 00:11:24,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:11:24,077 INFO L225 Difference]: With dead ends: 11722 [2022-02-01 00:11:24,078 INFO L226 Difference]: Without dead ends: 6174 [2022-02-01 00:11:24,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-01 00:11:24,089 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 127 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-01 00:11:24,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 454 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 521 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-01 00:11:24,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6174 states. [2022-02-01 00:11:25,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6174 to 5680. [2022-02-01 00:11:25,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5680 states, 5675 states have (on average 1.3462555066079296) internal successors, (7640), 5675 states have internal predecessors, (7640), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:11:25,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5680 states to 5680 states and 7644 transitions. [2022-02-01 00:11:25,530 INFO L78 Accepts]: Start accepts. Automaton has 5680 states and 7644 transitions. Word has length 376 [2022-02-01 00:11:25,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:11:25,530 INFO L470 AbstractCegarLoop]: Abstraction has 5680 states and 7644 transitions. [2022-02-01 00:11:25,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:11:25,530 INFO L276 IsEmpty]: Start isEmpty. Operand 5680 states and 7644 transitions. [2022-02-01 00:11:25,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-02-01 00:11:25,539 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:11:25,539 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:11:25,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-01 00:11:25,539 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:11:25,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:11:25,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1250244022, now seen corresponding path program 1 times [2022-02-01 00:11:25,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:11:25,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1820839745] [2022-02-01 00:11:25,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY